Massive construction system using rock masonry
A construction system for massive dwellings or alike; a unit shall be built in 5 days after preliminary work. First, shall be prepared precast items: sills and headers, using templates and reinforcing them to resist shear and diagonal stresses; and exterior and interior wall molds to use numerous times. Then foundation shall be set to have a slab floor with pipes inside a steel structure, and wall molds erected on each side of it, following a predetermined color and graphic code. Afterwards, shall be inserted precasts and all openings of building to pour concrete masonry and form a monolithic structure. A steel structure shall be embedded on top of walls for anchoring concrete T-beams. A material to insulate and form a stem of said T-beams shall be put on platform surface, and then a metallic mesh for reinforcing said T-beams, and for setting pipes, lastly, concrete shall be poured over.
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCHNot applicable.
REFERENCE TO A SEQUENCE LISTING, A TABLE OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIXNot applicable.
BACKGROUND OF THE INVENTION1. Field of Invention
This patent application falls in the “Construction System's” field. It is a method to produce massively dwellings or any buildings at an affordable cost from preliminary planning to all other construction steps: foundation, walls, roofing, finishing, cleaning and delivering. The System is using several prior arts, which are improved and combined together to accomplish a method capable to produce high volumes of dwellings at an affordable cost, and in a short lapse, and without employing expertise labor.
2. Description of Prior Art
(a) Masonry Wall Construction
Masonry wall construction is a very old building practice; in the Greek island of Thera (known as Santorini) the mortar used was the local volcanic soil. This practice was successful but slow.
In the Imperial Rome, the inventive mind of the Romans and the availability of volcanic sand with cementing properties, crafted a mortar to cast masonry with natural stone, or ruble from demolition; the Pantheon in Rome, built circa 123 A.D., is one among many still standing in our era. Although Romans accomplished such long standing constructions using a system of “lost molds” (two parallel brick walls for casting masonry,) had to withstand a time-consuming production since these brick molds were incapable to hold the lateral forces of all the liquid mortar necessary to fill said lost molds to the expected height in one pour, as a result was done in rows after rows. Furthermore, this system was possible because slavery was legal in Roman times, so a titanic inexpensive labor crew was feasible for handling too heavy duties.
(b) Conventional Masonry Construction, Currently Used.
This system calls for several construction materials, such as stone masonry, concrete blocks, clay bricks, and the like to build walls. The construction must be coordinated with the footing construction, and a qualified labor as well as supervision to perform several demanding tasks.
Besides, after walls have been built, electrical, plumbing pipes, and outlets are installed, consequently said walls are later on scoured and patched. Furthermore, headers for door and window openings, and door and window frames must be put, having one make use of more construction supplies that in time get cracks in between, so their exterior perimeter have got to be caulked and maintained.
In addition, delivery of materials and their reception with all the clerical work involved has to be handled, making the whole process time consuming and highly costly.
(c) Wood or Metallic Framing Walls.
The framing construction requires qualified labor and close supervision of anchors, especially for certain sections of walls capable of resisting earthquakes.
Connecting metallic members with nails or setting directions is difficult, that on occasions workers who do not understand instructions skip them and supervisors do not notice that omission, and as a consequence the desired quality of the structure is not quite accomplished.
Although metallic framing is better than wood framing regarding termites and flammability, requires more specialized labor and tight supervision making the system expensive.
Further, to make walls from both framing systems it is needful to plaster exterior or apply a siding material on perimeters, and for an interior face and partition walls gypsum board is normally used. Thereafter a furring process which requires specialized labor, plus shear reinforcement and installation of windows and doors with all the complications of caulking, flashing and leveling. Whilst, if insulation is required, rigid insulation is expensive to use and blanket insulation requires wider depth for higher values, condition which asks for an increase in the width of the walls, as the items used called studs need to be wider, or use a double framing and a rise in costs.
Finally, delivery and reception of materials need lots of clerical work, causing time consuming and all the process is highly costly.
(d) Prefabrication System.
Prefabrication involves lots of materials: steel, aluminum, wood, panels of combined materials including plastics, and even concrete, mainly light weight concrete. Moreover to assemble a building using prefabricated elements encompass several conditions because of being produced by industrial means, increasing costs and making such system more fancy than effective.
It also requires a factory, specialized machinery, technical personnel, and a market absorbing the planned production, and enough storage space for the elements in stock, as delivery of materials and reception with all clerical work involved.
All the process is time-consuming and complex, since fabrication limits the amount of units to be built as availability of elements is the function of the factory's production. This system cannot solve a high demand of dwellings for a disaster solution.
As a final inconvenient point, design solutions depend on the modular dimensions hence, limiting innovation, flexibility, and functionality.
BRIEF SUMMARY OF THE INVENTIONThe present invention is aimed at producing massive amounts of dwellings and the like, sorting the positive advantages of reliable prior arts, and coordinating, and translating them to our present times to produce strong, monolithic enclosures at an affordable cost, which overcomes the foregoing drawbacks of the conventional arts after a combination and improvement of them.
It is an object of the present invention to provide a method, based on concrete masonry and precast concrete accessories, a construction lapse compressed in five days for one building unit, as follows:
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- On the first day shall be built the waste lines, foundation, and floor slab.
- On the second day, by means of specially designed molds and precast items: walls shall be cast; windows and doors shall be installed to finally have a monolithic unit.
- On the third day a reinforced concrete slab shall be put in place, whilst concrete additives shall be used to remove the formwork safely the following day.
- On the forth and fifth days shall be installed bath and kitchen fixtures, and finishing details shall be performed, such as: floors, roofing, and painting.
- After cleaning, at the end of the fifth day, one story dwelling shall be delivered.
- A multistoried building takes additional time.
The set of molds of each phase: foundation, walls, and roof shall be moved to the next site every day; thus, shall be produced a finished building every day from the fifth day of starting the construction. The number of units delivered a day shall depend on the number of sets of molds to be used.
ADVANTAGES OF THE PRESENT INVENTIONThe use of the present invention not only will provide housing and related buildings to a world wide exploding population at a fair cost.
The present invention starts the construction process by obtaining information of the working conditions and requirements, in order to do a specific design and plan of action. Consequently, an open forum of discussion for the design solutions regarding budget and time frame, evaluating resources and geographical limitations for example weather and seismic conditions. Traditional and social constraints will also be considered. All this intellectual and technical implementation in comparison with other construction systems, which only follow traditions without making the players part of the solution, provide a further education for the personnel involved in the use of the present invention.
Another object of the present invention is to provide the necessary training to the work force in order to use efficiently the system, creating a new working expertise and education skills which can improve the social environment of the workers, and related personnel to the construction process.
Another object of the present invention is to provide special precast items such as headers, and sills to complement windows and doors openings. These precast items lower costs and increases speed with high results in the construction process.
Another object of the present invention is to design a set of wall wood molds, using traditional techniques, but with improvements which when utilizing every day can be used 30/40 times.
Another advantage of the present invention is to provide a low cost in maintenance because concrete masonry is waterproof, for this reason, no oxidation risks arise providing a long lasting performance. What's more, no termite attacks; and no use of construction materials as lumber, thus, natural resources undermining is avoided.
Another advantage of the present invention is to provide the possibility to build walls with all the ginger bread, when desired by the user, and no additional specialized labor or cost. Since one of concrete's attributes is that it molds into any shape of any special mold, creating a final structure that has the shape, line and volume of any dimension one may require.
Another advantage of the present invention is to provide no limitation of shape, size, or functionality; as walls can be of any desired thickness, appearance, and functionality; and alcoves to contain insulation materials can be added, etc.
Another advantage of the present invention is to provide a strong and light roof structure of reinforced concrete, type known as T-beams, which uses a small volume of concrete to cover a comparable long span.
Another advantage of the present invention is to provide a cost reduction in improving the thermo function of the roof, by using either insulation or alternate material to form the T-beams' stem.
Another advantage of the present invention is to provide a place to embed electrical, plumbing or other pipes protecting these main elements from damage as a consequence of using reinforcement for the concrete.
Another advantage of the present invention is to provide an earthquake, fire; termite, hurricane, and flooding proof construction due to concrete masonry's characteristics, and the monolithic nature of the structure.
All the foregoing advantages distinguish the present invention as a powerful construction system of dwellings and the like, in improving and combining prior art, besides, introducing some new items and concepts. Giving the building industry worldwide the opportunity to satisfy the need of affordable constructions at massive production levels.
Furthermore, another important advantage of the present invention is that it has no limited scope regarding building type; as it is fitting for the construction of dwellings, schools, commercial buildings, offices, and medical services, hotels, etc., one level or multiple stories, and can be simple or trendy according to the ability of who designs the particular architectural style. The use of the present invention will improve the construction industry worldwide, creating jobs and increasing business in massive numbers.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGSThe foregoing Summary as well as the following Detailed Description of Preferred Embodiments is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there is shown in the drawings embodiments which are presently preferred. It should be understood, however, that the invention is not limited to the specific methods and instrumentalities disclosed.
No more drawings are necessary, because the following fourth and fifth day of construction, are used to install bath and kitchen fixtures, glazing, painting, flooring, roof waterproofing and details. This part of the construction uses conventional systems.
DETAILED DESCRIPTION OF THE INVENTIONTo facilitate the understanding of the drawings and/or written descriptions, a key number is listed below:
1. Foundation
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- This includes: footings with a shape, where the base is big enough to distribute the imposed loads of walls and roofs to the ground. A floor slab shall be of concrete 18 for floor finishes. An anchor structure 6 a device half embedded where concrete masonry walls shall be set, of the present invention, to connect said footings with the walls.
2. Concrete Masonry Walls
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- Walls are elements to enclose spaces from the weather, noise, etc. plus providing privacy. Walls definition includes openings: doors and windows. In the present invention solid walls are built with a concrete masonry 17+18, and the openings use precast headers 4 and precast sills 5, whilst windows frames, and doors frames, and leafs can be of any material, brand or manufactured in construction site. The present invention denotes the molds modifications to make use of the foregoing.
- At the top of walls shall be embedded anchor structure 6 anchoring thereof as footing, because the structure holds beams of roof with walls creating a monolithic structure, a feature of the present invention.
3. Roof (Proposed in the Present Invention)
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- It is of concrete referred to as T-beams 37 as it consists of beams with a T-shape, having a long steam with a narrow base at the vertical part of the T. This steam shall be reinforced with a steel structure 26 where the rod elements resist flexion stress in the lower part of the structure, held together with stirrups (bent rods, usually in a U-shape or a W-shape), and also holds metal mesh 27.
- Said metal mesh 27 is an arrangement of steel bars or wires normally in two directions at right angles, tied or welded at intersections; a reinforcement of the horizontal bar of said T-beam 37.
- Said T-beams shall be set at equal distances one from the other, condition which defines T-beam system. To assure the equal distances, and build easily the stem, and give roof insulation (additional quality) the present invention uses rigid insulation panels 24 for extreme weather conditions, or hollow concrete block 25 for less critical conditions. For buildings without snow endurance one quarter per inch per one foot slope shall be used, by thickening the slab were necessary. On the other hand, for snow conditions roof beams can be built at any pitch required.
4. Precast Header
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- This is an accessory element to enclose the top of openings where doors 29 or windows 28 shall be located. It is build with reinforced concrete 18 and a structure of rebars and stirrups 34 and molds that shall rest on the ground and be cured 38 for 7 days without moving them to reach complete resistance, as required.
5. Precast Sill
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- This is another accessory element to enclose bottom of openings where windows 28 shall be located. It is build with reinforced concrete 18 and a structure of rebars and stirrups 34 and molds shall rest on the ground and be cured 38 for 7 days without moving them to reach complete resistance, as required.
6. Anchor Structure
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- Used in between footings and wall, and between walls and roof This is a structure of rebars and stirrups, with a width of two inches less than the width of the wall, covering one inch at each side forming part of wall 2 at the bottom attaching walls to foundation footings, and at the top attaching walls 2 to roof 3.
7. Perimeter Foundation Molds
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- The molds for forming an exterior face of the foundation footings can be of wood, using wood stakes and wood bracing to set them vertically. Building them shall be under any conventional system, however, the dimensions shall be the ones described in the drawings because the idea is to have unskilled labor use them at least 40 times. Also, shall have a color code to locate them properly, hence, a red band in the front, blue in the right side, yellow in the left side, and green in the back side, plus black marks 32 with pointed arrows to show where ditches are going to be and width of them. All shall be clearly marked. This is part of the present invention to have an automatic construction.
8. Exterior Wall Mold
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- The exterior molds shall be fabricated in the site using three quarters inch or thicker water resistant plywood panels of four by eight feet. Mold dimensions and/or panel material can be different if necessary. Drilled holes 36 are necessary to hold the molds at a parallel distance with ties 14 (said ties generate the thick of the wall.)
9. Wales
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- To keep molds aligned. The exterior molds 8 and 13 shall be reinforced with wales 9, a horizontal timber or beam, used to brace or support an upright member for formwork. This piece of lumber shall be two by four inches nominal by four feet long, nailed to plywood at the bottom of drilled holes 36 keeping the holes clear. Another row of wales 2×4 inches nominal by eight feet long shall be placed on top of said drilled holes 36 after ties 14 are in place, this 2×4×8 shall be placed in alternated positions in order to keep plywood molds aligned when tightened with the wedges 15. Once wedges are tightened, bracing 10 shall be used to plumb the formwork properly.
10. Bracing
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- Used in the present invention to plumb formwork. It is light formwork pieces of lumber 2×4 inches nominal by eight or ten feet long, sufficient to brace the formwork to an upright position. Some stakes shall be pounded into the ground to nail one end of the bracing, creating an angle to support upright the molds.
11. Plumbing Pipes
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- This refers to the main pipes which carry water and connect to secondary water pipes for feeding faucets installed in a building.
12. Electrical Pipes
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- These are the main pipes to contain wires connected to secondary pipes and boxes for distributing electrical power in a building.
13. Interior Wall Mold
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- It refers to the opposite of mold 8 and has similar specifications to said 8. It shall have 36 holes as well and wales 9. No braces are necessary because once the ties 14 with the wedges 15 are tighten, the framework shall be plumb.
14. Ties
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- They are separator wall items. They have several shapes and there are several brands in the market, the ones shown in the figures are only a sample of one of them.
15. Wedges
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- They are used in conjunction with ties 14 to tight the molds to be filled with rocks 17 and concrete 18 as denoted in the present invention, as required. Wedges need to match with the chosen brand ties 14.
16. Scaffold
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- The word which defines a temporary platform for supporting workers and materials on the face of one structure and to provide access to work areas above the ground, as shown in
FIG. 7 . It can be built under any safe conventional system with lumber or one of those in metal leased in the market till used.
- The word which defines a temporary platform for supporting workers and materials on the face of one structure and to provide access to work areas above the ground, as shown in
17. Rocks
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- In the present invention, it is the material used in high volume to produce said footings and walls 2. Rocks are 60 to 75 percent of the total volume. Rocks shall be the material of choice if they are abundant in the construction area, which means: no cost, to keep the final construction cost competitive. But, it is not a restrictive condition because the complement material, concrete 18, has the characteristic of being a material produced using engineering techniques to decide how much resistance shall be to compression stress. Making it possible to use any acceptable option of material to substitute said rocks, for example with ruble from fallen buildings due to natural disasters, war, or other causes, or tree trunks, or coconut shells, or chopped used tires, etc., to serve as a volume saver in the concrete masonry. The only condition shall be size; thus, the dimension shall allow the material go easily into the space in between molds.
18. Concrete
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- Defined as a composite material consisting essentially of a binding medium within are embedded particles or fragments of aggregate. In the present invention shall be used Portland cement concrete, but it can be substituted by other types of concrete after studies prove it a suitable substitute. The mixture of sand, gravel, Portland cement, and water can be used under calculated proportions to have the wanted strength required; fiber glass also can be added to improve the characteristics of resisting tension of concrete. All the technical advances, plus it's capability of taking the shape of the mold where is poured, makes concrete a very workable material.
19. Wood Stick
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- A rough tool, of a two by four inches lumber and eight feet long, one for wales 9, and others for workers to manually push rocks into concrete, while standing on the scaffold 16.
20. Trapezoidal
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- A metallic accessory with a tubular shape designed to be embedded in concrete on top of walls, for holding with screws lumber or manufactured metallic connectors, used with beams as an alternate roof construction, instead of concrete T-beams. Also this tubular accessory can be embedded at the face of walls or under the T-beams stems to attach furring panels with screws for wall or ceiling finishing.
21. Graphic Representation of an Exterior Wall Built with Concrete Masonry, used in
22. Graphic Representation of an Interior Wall Built with Concrete Masonry, used in
23. A Conventional Structure of Posts and Beams
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- Reinforced with diagonal lumber as braces, to support a platform for workers to handle materials on it, necessary to build a concrete slab
24. Rigid Insulation
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- This consists of boards of different materials available in the market to provide insulation to roofs 3 and exterior walls 2. The present invention uses these boards for roof insulation and also, to mold the stems of T-beams 37.
25. Concrete Masonry Units (CMU)
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- Known as a block or brick cast of Portland cement used to lay up with other units as in normal stone masonry construction. In the present invention hollow Concrete Masonry Units are used as an alternate material to 24 to mold the stems of the T-beams roof, and also as an insulation material for non extreme climatic conditions. Laying CMU in a horizontal way, the hollows will be connected making the trapped air in them act as insulation.
26. T-Beam Reinforcement
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- In the present invention, metal bars, rods, wires, or other slender members, previously designed by structural engineering calculations, are embedded in the concrete forming the stem, vertical part of the T-shape, in such a manner that the metal and the concrete act together in resisting the forces from loads of living traffic and/or wind, snow, and others imposed to the roof
27. T-Beam Metal Mesh Reinforcement
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- The horizontal shape of the T uses an arrangement of steel bars or wires, normally in two directions at right angles, tied or welded at intersections or interwoven. This mesh reinforcement is tied to the top rod of each of the T-beam reinforcements 26, letting the mesh hang loose on the top of either one: 24 or 25 stem/insulation materials.
28. Window
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- Any type of chosen window: wood or metallic, but provided with two anchors 35 at the back of its jambs to keep the window frame firmly attached to the concrete walls.
29. Exterior Door and Frame
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- It shall be metallic wood or metallic, and shall have three anchors 35 at the back of both jambs to hold it to the concrete walls.
30. Interior Door and Frame
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- It shall be wood or metallic, provided with anchors 35 at the back of its jambs to hold it to the concrete walls, the windows 28 and the doors 29.
31. Waste Lines under Concrete Slab
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- Refer to an installation of pipes for trapping waste from toilet bowl, lavatories, kitchen sink, washing clothes machines or boards, and other fixtures. Used for cleaning purposes or disposal of feces and urine.
32. Painted Sloping Strip Marks in Molds
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- To be guides to aid laborers. Different colors shall be used for different actions, for example, short parallel lines on the interior of the perimeter foundation molds 7 shall instruct workers where to dig a trench for a footing.
33. Returns
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- These are nailed strips of lumber at a right angle to the interior face of wall molds 8 and 13 to hold in place door frames and precast items during concrete masonry pouring, in the present invention, for walls construction. They are made of a lumber of 2 inches thick by half of the jamb's dimension minus width of the wall. The length equals to the wall's height.
34. Precast Reinforcement
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- In the present invention it is metal bars, rods, wires, or other slender members, previously designed by structural engineering calculations, embedded in the concrete of the precast elements, in such a manner that the metal and the concrete operate together in resisting the forces from loads imposed on them.
- The reinforcement shall consist of two rebars, one at one and a half inches from the top of the precast, and the other at one and a half inches from the bottom. These rebars form a structure with rod stirrups or hangers. The stirrups are usually made of rods of one quarter inch less in diameter than the rebars, and in U-shape bents; the bents are for holding said rebars, which are attached with an 18 gauge twisted wire. Said stirrups or hangers are at distances of no more than four inches center to center.
- This reinforcement is a must for said precast items to resist shear and diagonal stresses, since it carries out the function of beams. Structural calculations (mathematical calculation based in formulas obtained by trial and experience to find the dimensions of the different elements used for forming a structure capable to resist the forces acting on them, this task falls in the field of the engineering) shall be necessary to verify diameter dimension of the rebars and rods; and concrete's compressive strength shall not be less than 5000 pounds per square inch, tested for twenty-eight days. There shall only be changes to the compressive strength if a structural calculation recommends it.
- Said precast items shall be cured for al least seven days after concrete pour at a temperature above 50° F.
- Wood molds in general shall be prepared using templates to make its production automatic.
35. Metallic Elements
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- Those attached to windows 28 or doors 29 at the back of their jambs, shall provide anchorage to such windows or doors at the walls opening ends. The attachment of 34 can be by welding when 28 and 29 are of steel. Screwing 34 can be the attachment system for aluminum 28 and 29 or when wood or similar materials are used in its fabrication.
36. Drilled Holes
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- Holes drilled to wall molds 8 and 13 shall be at the dimensions required to let ties 14 pass thru. The distance in between holes and number of holes per mold are per engineering calculations, considering the width and the height of the wall. Once the specifications are calculated one piece shall be drilled carefully, such piece shall be used as a template to drill all the ones used in the construction process.
37. T-Beams
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- A reinforced concrete beam having a cross section resembling the letter T. This concrete roof system is very effective to save long spans with a short volume of concrete 18 in light reinforcement 26. Extensively used in parking structures and factories construction but, its use in light constructions is not popular, as result of the cost involved by molds and labor in forming the stems of the T-shape. The present invention uses rigid insulation 24, which is necessary for buildings in extreme climates or the hollow concrete units 25 for non extreme climates. The use of 24 or 25 in the present invention overrides the cost of forming stems, making the T-beams used at a highly competitive cost. Besides, the engineering calculation techniques of the present invention let the support platform 23 be moved to the next location, the day after pouring onto roof, keeping the construction pace in schedule.
38. Curing
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- Refers to keeping placed concrete humid during some definite time because concrete hardening is a chemical reaction that uses water to harden it properly and if there is not enough water during the chemical process the concrete cracks, making the item not what was expected.
39. Trowel Finish
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- A smooth-concrete-finished surface produced by a flat tool.
To use the present invention the process starts with the listing of the program's requirements regarding:
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- General concept
The present invention massive CONSTRUCTION SYSTEM at an affordable cost based on the use of concrete masonry and unskilled labor to produce dwellings and the like.
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- Basic Construction System, is illustrated by the
FIG. 1 , which shows an exploded sketch of three basic elements:- Foundation.
- Walls.
- Roof
Foundation 1,
- Basic Construction System, is illustrated by the
The present invention shall use concrete masonry 17+18, and the proposed molds 7 specially designed to produce one foundation unit per day. Said molds shall be used in an automatic manner thanks to a color code 32 (a detailed sequence of steps to build foundation and related elements marked on said molds) refer to
Walls 2,
The present invention shall built a solid continuous surface using concrete masonry 17+18, (see
Also the Construction System in the present invention can be customized to a certain economical circumstances such as a limited budget, and a social and/or ethnical architectural style, and to a critical condition which is the availability of the construction materials and labor.
Regarding the foregoing the present invention as a Construction Method shall not be limited to the physical characteristics shown in the attached drawings, but shall use technical knowledge in general to solve any special circumstances to provide a solution in building swiftly and at an affordable cost to satisfy the needs in whatever construction site.
Roof 3,
Construction in the present invention shall be with concrete 18 T-beams 37, a shape that can be obtained using rigid insulation 24 when required; or hollow concrete blocks 25 for places with mild weather; or factory produced fiber glass molds to create a coffered shape.
An alternate roof construction of lumber, wood trusses, thatched on three branches, etc. can be used, with a simple change in the anchoring connection used for holding roof structure on top of the concrete masonry walls.
For a better understanding of the process it shall be divided into five sections:
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- 1. “Preliminary Work”
- 2. “Foundation”
- 3. “Walls”
- 4. “Roof”
- 5. “Finishing”
1.—Preliminary Work
As follows:
At first shall be carried out discussions about the Construction Method with the personnel in charge of the construction to set conferences for training labor, because it is important the labor personnel understand how their work shall contribute to the success of the aim, and to clarify the construction techniques contained in the present invention because they are different in approaches and goals from conventional ones. Also, to enhance the idea that the present invention approaches massive construction in a short time, and the goal is to build affordable dwellings or any building. Locating and designating an area to produce all precast or preassembled items needed for the invention shall be done, to have the present invention running swiftly.
(See
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2.—Foundation
Actual construction starts with the foundation for one unit. See
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Then, cured 38 with clean water after the floor slab is hard enough to traffic without showing marks. A water hose can be used.
3.—Walls.
Construction of walls, see
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- Plumbing pipes 11 and electrical lines 12 and others shall be set inside of the embedded structures of rebars and stirrups 6. The structures 6 have a double function, one being a structural connection in between foundation and walls, and another a protector of piping lines from rock hits which may happen when throwing rocks 17 during concrete 18 masonry pour if no protection is considered.
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For window placement see
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The two molds 13 are shown in an exploded position. Note that all wall molds do not show holes 36 or wales 9 or braces 10 but all these elements shall be present and used as before stated in
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Door placement, see
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Molds 13 are shown in an exploded position, too. Note that all the wall molds shown do not show holes 36, wales 9, either braces 10, however all these elements shall be present and used.
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Pouring concrete masonry into molds of walls, see
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Once completed the foregoing operations, the work for the day is done, said concrete shall be dry in the following day and said molds shall separate from said concrete because of a chemical reaction, a loss in water reduces its volume, liberating itself from said forms. Therefore said forms shall be easy to move onto the next wall forming.
4.—Roof
Construction of roofs, see
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- Said curing 38 shall be done at least 3 times a day for the next two days. In hot climates shall require more curing as slab dries faster, as said curing 38 shall be provided every time the slab is almost dry.
The day after, 23 shall be moved to the next construction site to keep up with the work schedule. This is possible because the concrete shall be mixed with chemical additives to accelerate the hardening chemical reaction (there are several brands of additives in the market). Furthermore, instead of concrete 18 a fast set Portland cement can be used if available at the construction site. Engineering calculations for laying down the proportions of Portland cement, sand, gravel, water and chemical additives shall consider moving a supporting platform the day after concrete pour. Also, in the present invention shall require the reinforcement 27 with bolder re-bars than the ones necessary when supporting a platform for seven days, as in the conventional systems, however, using them for one day in the present invention reduces cost.
5.—Finishing.
The subsequent operations of painting, installation of bathroom and kitchen fixtures, glazing, details and others, are performed under any methods being used in the area of the construction site, therefore, no mention is necessary. However, it is worth mentioning that female labor shall be used for these tasks because they are better in details and thus, more effective in finishing tasks and it can improve the economy by giving job opportunity to women.
From the foregoing description, it can be seen that the present invention comprises an easy and swift construction system of buildings. It will be appreciated by those skilled at the art that this is for covering any architectural structure under any specification of use or architecture style. Although, the foregoing illustrated the basic material for masonry construction as rocks, it can be substituted by another material available in site, for example coconut shells, rubble from former buildings destroyed by wars or natural causes as earthquakes, or others, even old rubber tires. The function of the basic material is to reduce the volume of concrete used. However, the advantage of concrete is that it can be controlled, as the resistive stress can be customized by calculations of proportions of its components: sand, gravel, cement and water.
It is understood, therefore, that this invention is not limited to the particular construction material and shapes disclosed, but is intended to use the material of construction in site, and any specification or style of construction defined by the appended claims.
It shows a work schedule in a simple tabular form of a process to build 40 units with a set of forms. Serving as the base to figure out how many sets are necessary to build the desired number of units in an expected time frame for a specific job.
Claims
I. A construction system for constructing massively dwellings or of the like, that shall be at least in 5 days after preliminary work using rock masonry, comprising:
- (a) preparing precast items, sills and headers for window, and sills and headers for doors using templates for,
- (b) making wood molds, which can have any chosen shape and size, thereby accommodate any type of opening of a building,
- (c) pouring into said wood molds concrete, and after said concrete hardening,
- (d) reinforcing the precasts with two rebars, one said rebar shall be at least one and a half inches from the top of said precasts, and the other one at least one and a half inches from the bottom of thereof, so the reinforcement fulfills the function of beams, thereby said precasts shall resist shear and diagonal stresses, and in the intervening time,
- (e) drilling holes to exterior and interior wall molds, the molds can be at least of panels of plywood, approximately of four by eight inches, and to said exterior wall molds shall be nailed wales to of about two by four, to be used numerous times in constructing numerous building units,
- (f) preparing one of various foundations where trenches are dug using a color code of perimeter molds,
- (g) filling said trenches with one layer of the rocks that are poured over concrete to form a slab floor which guarantees space for soil volume, and before concrete hardening
- (h) embedding a structure of rebars and stirrups on the perimeter for setting pipes of at least plumbing, electrical lines, telephone lines, and television cable inside, thereby protecting them against rock masonry, and also for anchoring wall molds
- (i) erecting exterior wall molds following a predetermined color and graphic code to dispose the wall molds into their correct position, and using shoring elements to straighten said wall molds into a perfect vertical position, on one side of the structure and on the other side is erected interior wall molds following said predetermined color and graphic code, and inserting ties of said exterior mold into said interior molds to tighten both together, thereby said structure is sandwiching said exterior and interior molds and ready for
- (j) inserting the precast sill against and in between returns, on which is placed a window, and on which is placed the precast header,
- (k) placing a door against and in between returns, on which is placed the precast header, thereby, holding all the foregoing items, and the walls are ready for,
- (l) pouring into said walls concrete masonry, and before said concrete hardening,
- (m)embedding a construction material on top of walls for anchoring concrete T-beams and firmly connect thereof to said walls,
- (n) setting on top of platform of a roof a material for providing temperature insulation to roof and forming a stem of the T-beams, thereby, overriding the cost of forming stems of said T-beams, and
- (o) placing a metallic mesh on top for reinforcing T-beams, and for setting pipes of at least plumbing, electrical lines, telephone lines, and television cable, and after reinforcement,
- (p) pouring concrete over and finish the slab roof, leaving the supporting platform for a day, thereby is moved to the next construction site the following day to built a roof in one day,
- (q) whereby, said wall form and said pipes are swiftly installed so costs are reduced in terms of paying hours work to the labor,
- (r) whereby, said wall is not made of wood but relatively said concrete with said rocks or other material instead of said rocks costs are again reduced in terms of material cost.
II. The construction system of claim I wherein said using rock masonry, it is not constrained to said rocks since several other construction materials can be used instead of thereof, provided the material coheres well to concrete and thereof is a high percentage in volume of construction material used, thereby, possibilities are limitless, as ruble from a war zone or natural disasters, used tires, ginger bread, and numerous other materials can be used instead of said rock.
III. The precast items of claim I wherein said templates means for making said precast items' production automatic, thereby, as many as needed can be produced avoiding the precasts not being produced under specifications required, and the production done swiftly by unskilled labor.
IV. The wood molds of claim I wherein said opening of a building containing said opening selected from the group consisting of at least windows and doors, and panels of glass or any other materials.
V. The wood molds of claim I wherein said concrete shall have a compressive strength no less than 500 pounds per square inch.
VI. The concrete of claim V wherein said the compressive strength shall be tested for seven days.
VII. Pouring into said wood molds of claim I wherein said concrete shall be cured for at least twenty-eight days at a temperature above 50° F. without moving them, after pouring.
VIII. The reinforcing wherein said rebars form a structure with rod stirrups or hangers.
IX. The rebars of claim VIII wherein said rod stirrups mean stirrups of at least made of rods of one quarter inch less in diameter than said rebars, and in U-shape bents.
X. The rod stirrups of claim IX wherein said U-shape bents mean for holding said rebars with at least an 18 gauge twisted wire, and at distances of no more than four inches center to center.
XI. The exterior and interior wall molds of claim I wherein said drilling holes mean drilling at a dimension to let ties pass from end to end, and distance between the holes and number of said holes on the wall molds shall be according to width and height of hereof under engineering calculations, thereby size of the walls is not restricted.
XII. The perimeter of mold of claim I wherein said color code means for indicating unskilled labor where to dig said trenches, whereby, even the illiterate or foreigner labor can perform efficiently said digging.
XIII. The exterior wall molds of claim I wherein said color and graphic code means for indicating unskilled labor where to install the wall molds, whereby, even illiterate or overseas labor can execute erection of said wall molds by the book.
XIV. The precast of claim I wherein said return means nailed strips of a lumber of 2 inches thick by half of jamb's dimension minus width length, with a length equal to wall's height, set at a right angle to the interior face of exterior and interior wall molds.
XV. The precast of claim I wherein said return means for holding openings of a building and precast items, and a stop, as thereof shall outline the ends for concrete masonry in between openings.
XVI. The pouring into said walls of claim I wherein said concrete masonry mean about two feet height of concrete, for sinking into said concrete rocks of a dimension no greater than the thickness of said walls and pressing with sticks to accommodate into said concrete, and then repeating the same process of pouring said concrete and later said rocks until the wall forms are filled to the peak.
XVII. On top of walls of claim I wherein said a construction material containing the material selected from the group consisting of a steel structure of rebars and stirrups and trapezoidal pipes.
XVIII. The construction material of claim XVII wherein said steel structure of rebars and stirrups means for a roof or deck that shall be of concrete.
XIX. The construction material of claim XVII wherein said trapezoidal pipes mean for a roof or deck that shall be at least of metal or wood or joists trusses or rafters for holding connectors for roof's elements.
XX. On top of walls of claim I wherein said T-beams mean a reinforced concrete beam having a cross section resembling letter T.
XXI. The T-beams of claim XX wherein said reinforced concrete beam mean at least metal bars, rods, wires, or other slender members designed under structural engineering calculations and embedded into the concrete, thereby the metal structure and said concrete together resist at least forces from loads of living traffic, and wind, snow and other conditions imposed to roof
XXII. On top of platform of claim I wherein said material for providing temperature insulation containing the material selected from the group consisting of rigid insulation panels and hollow concrete blocks.
XXIII. The roof of claim I wherein said pouring concrete shall consider engineering calculations for stipulating the adequate proportions of Portland cement, sand, gravel, water and chemical additives necessary to move a supporting platform the day after the concrete pour.
Type: Application
Filed: Jan 20, 2004
Publication Date: Jul 21, 2005
Inventor: Eugenio Aburto Ponce (Newport Beach, CA)
Application Number: 10/760,335