Abstract: A road repair kit and/or bridge joint repair kit is comprised of an outer container, a measured amount of asphaltic material and a separate and distinct measured amount of aggregate material. In a preferred embodiment of this invention, the asphaltic material is in a first consumable container (meltable bag) and the aggregate material is, likewise, in a second consumable container (meltable bag) inside the first consumable container.

Abstract: The invention relates to a construction kit made of concrete paving stones comprising substantially prismatic stone bodies of a uniform height and upright lateral surfaces. A plurality of stone paving stones (2) arranged in rows and having the same width in addition to the same or different lengths can be placed manually or placed by means of a machine with continuous or offset joints in said joint areas. A plurality of rows of paving stones that are arranged next to each other in a parallel position is used to form a rectangular or square packet that can be placed using a machine. The paving stones (2) have side surfaces (4) which have head pieces (2′) that are defined by a wavy line along part of their height and base pieces (2″) in sections, comprising domed areas (5) or projections jutting out laterally in relation to the head pieces (2′) extending along another part of their height.

Abstract: The invention relates to bitumen or asphalt for producing a road topping, whereby said bitumen or asphalt contains a proportion of paraffin obtained by Fischer-Tropsch synthesis (FT paraffin). The invention also relates to a road topping with said bitumen and to a method for producing a corresponding road topping or roadway/covering using said bitumen.

Abstract: The NOx-cleaning paving structure of the present invention comprises a concrete base layer 1, a paving layer 2 and a surface layer 3 as illustrated in FIG. 1. The surface layer 3 comprises 100 parts by weight of cement, 5-50 parts by weight of titanium oxide powder and 100-700 parts by weight of aggregate, by which the surface layer on the paving layer can be provided with an NOx-cleaning action and an excellent durability. In addition, pozzolan materials, particularly a blast furnace slag, or adsorbing materials can be added to the surface layer. The paving layer 2 comprises an asphalt paving 21 or a concrete paving 6, both of which may include the used paving layers. It is preferable that the asphalt paving is porous and the surface thereof has an unevenness. Additionally, it is preferable that the thickness of the surface layer is 1-300 mm for the concrete paving and 2-15 mm for the asphalt paving. Among cement, injection cement for half-flexible paving is preferable.

Abstract: An athletic track having a post-tensioned concrete slab supporting a resilient surface. The athletic track has opposed, parallel rectangular side areas and opposed semi-circular end areas connecting the side areas. The concrete slab is cast in place without requiring expansion joints between segments. Cables are cast into the slab for providing a tension load in the concrete slab. A first set of cables is tilted away from the perpendicular in a first direction while a second set of cables is parallel to the edges of the rectangular areas such that members of the second set of cables cross members of the first set of cables. A third set of circumferential cables is provided in the semi-circular end areas. A fourth set of cables intersecting the circumferential cables is non-radially disposed. The slab has a relatively flat lower surface. Pour strips situated along a line of symmetry are provided between adjacent quadrants of the end areas.

Abstract: A pavement marking and methods of making pavement markings are disclosed in which the pavement markings exhibit enhanced wear resistance to, e.g., snowplow blades. The pavement markings include elongated protuberances in which successive elongated protuberances overlap along at least the longitudinal direction and may also overlap in a direction transverse to the longitudinal axis. Other protuberances are interspersed between the elongated protuberances to improve retroreflectivity. The elongated protuberances are provided to support, e.g., a snowplow blade moving over the pavement marking.

Abstract: A plate support device for use during road repairs for creating a smooth transition from the road to the plate member. The plate support device for use during road repairs includes a support member having a bottom wall and a plurality of tapered side walls with each side wall having an outer top surface, an outer lower surface, and an outer intermediate surface which is slanted at an angle relative to the top surface and lower surface thus forming a ramp portion. The bottom wall has a plurality of holes therein, which include a first set of holes and a second set of holes which is larger than the first set of holes for fastening the support member and plate member to the road.

Abstract: An adsorptive-filtration media for the capture of waterborne or airborne constituents. The media comprises a granular substrate and an amphoteric compound bonded to the substrate in the presence of a crystal inhibiting agent. The media can also comprise a substrate having a specific gravity of less than 1.0 and an amphoteric compound bonded to the substrate. Another media comprises a substrate with a specific surface area of greater than 0.1 m2/gm and an amphoteric compound bonded to the substrate. Another media includes a granular substrate and a manganese oxide amphoteric compound formed on the substrate. Also disclosed is a pavement material for the capture of waterborne constituents. The pavement material comprises a porous pavement substrate and an amphoteric compound bonded to the substrate. Also disclosed is a method for producing a porous, cementitious material.

Abstract: A prestressed pavement has apparatus to prestress the slabs, has slab abutments to resist the prestress force, has short-life friction-reducing medium to prevent the slab early cracking, has restraints to prevent the slab buckling, and has accumulators to control the prestress. The pavement does not need longitudinal tensile material, and can be built by continuous and one-time concrete casting. The prestressing is simple, fast, and may be delayed or made by stages. The techniques can be used to convert existing non-prestressed concrete pavements to prestressed pavements.

Abstract: Ecotechnical pavement comprising a draining and wearing course (1) and at least a second lower layer (2) of analogous structure. The particular granulometry of the layers (1, 2) and the choice of aggregates, insure both an optimum adherence and the absorption of medium and high acoustic frequencies produced by vehicle traffic. Between the two layers (1, 2) and the lower supporting layer (5) there is provided a “cooperating separation layer” (3) which transmits the forces produced by vehicle traffic to the supporting layer (5). The layer (3) acts as a Helmhotz resonator in order to absorb sound at low frequencies, besides allowing an easy transversal flow of rainwater, the passage of powder of heavy metals or the passage of other types of liquids; the latter, which may be dangerous or polluting, are collected in a lateral “reservoir pavement” (9). The separation layer prevents cracks due to fatigue from rising.

Abstract: An asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parallelly spaced, oppositely pitched, counter-rotating hydraulically driven feed augers having remixing blades that intermittently displace portions of the hot mix asphalt material generally transversely to the direction that the feed augers convey the hot mix asphalt material from a hopper of the asphalt paver to spreading augers near the rear of the machine. Elongate members over the feed augers provide protection from impact forces and overloading and enhancing lateral extraction of hot mix asphalt material from the hopper. An optional feed screen provides flow control of the hot mix asphalt material in the hopper. A kit is provided for converting existing asphalt paving machines to have desegregating capability.

Abstract: Provided is an overlay concrete which is good in bond to existing concrete fabrics and satisfies properties such as strength, durability and workability. The overlay concrete of the present invention comprises an AE water reducing agent or superplastisizer, and has a slump of 2 to 8 cm, a cement-water ratio of 35 to 45%, and a sand-coarse aggregate ratio of 36 to 42%.

Abstract: A method of repairing potholes and cracks in a road surface is disclosed. The method provides a dry mix, non-bitumen based, polymer concrete, utilizing ethylene vinyl acetate pellets and/or rubber powder with at least on of a cement powder, aggregate, a second polymer material and a colorant. The method provides a repair material that can return the repaired roadway to use in a maximum of 2 hours.

Abstract: A porous pavement construction formed from environmental porous pavement materials is formed with a number of aqueduct channels located underneath the pavement surface, so that water can percolate downward into the pavement and enter the channels. Methods of forming this pavement structure are also discussed.

Abstract: Asphaltic concrete compounds comprised of asphalt cement and aggregate have, as a substantial portion of their respective aggregates, anthracite coal particles and fines, which are added specially as a lossy microwave material. These asphaltic concrete compounds are particularly useful when laid down as a pavement, or a top layer of a pavement, which thereafter can be freed of ice, by using microwave energy to debond the ice. The debonding of the ice occurs without causing any noticeable melting of the ice, and the debonded ice is thereafter easily lifted and removed from the pavement of the way, serving as a roadway, highway, runway, or walkway. Also these asphaltic concrete compounds are particularly useful as patching materials when damaged pavement is being repaired, especially during cold weather.

Abstract: Environmental porous pavement materials are formed by encapsulating inner aggregates with cementitious material, adhesive admixture and sealant compounds. Recycled asphalt and recycled concrete products can be used. A mixing machine produces a homogeneous mix of the paving material by surrounding at least part of an aggregate with a coating liquid.

Abstract: The disclosed striping composition provides a fast cure on road or highway surfaces. The striping composition is a two-part (part A and part B) polyurethane forming system having good adhesion characteristics to a road or highway surface, and weathering and yellowing resistance over time. Part A contains an aliphatic polyol and part B contains an aliphatic polyisocyanate.

Abstract: A substantially permanent pavement marking system using a polymer modified cement material to provide a raised marking that extends above the surface of the pavement. The lines are formed by taping off the desired outline shape of the marking. The pavement marking material is of such a consistency that it will set up to form a thick layer and not flow over the tape and will harden forming a raised marking.

Abstract: A semi-rigid asphalt concrete that can be produced under ambient temperature by applying traditional cement concrete production method. A high temperature heating and great pressure rolling that are necessary for producing asphalt concrete in conventional skills are never being constraints while producing the semi-rigid asphalt concrete. The method of producing the semi-rigid asphalt concrete generates less air pollution than the traditional method for producing hot mix asphalt concrete. The semi-rigid asphalt concrete consists of cationic emulsified asphalt, type-I cement, F-type superplasticizer, Na-Carboxymethyl Cellulose (Na-CMC), calcium chloride(CaCl.sub.2), stone dust, and III d, IV b, or VII a gradation aggregates. By applying the procedure of producing cement concrete, the semi-rigid asphalt concrete is completely produced after mixing, placing, and curing. The cationic emulsified asphalt and the F-type superplasticizer are first mixed to generate a mixture, and then pour the prepared CaCl.sub.

Abstract: An asphaltic concrete or paving material includes at least 5 percent, and preferably from 5 to 20 percent, of granular recycled plastic, which supplements or replaces the rock aggregate component of the mixture. The material produces a structurally superior paving material and longer lived roadbed. The plastic may include any and all residual classes of recyclable plastic, including thermosetting plastics and other plastics having little to no current widespread utility. The material produces roadbeds of higher strength with less total asphalt thickness and having greater water impermeability, and is most useful for all layers below the surface layer. The recyclable plastic component of the material is preferably a mixture of all recyclable classes 3 through 7, or of those materials from such classes from which potentially more valuable recyclable materials have been selectively removed.

Abstract: There is provided a pavement material comprising an asphalt and several kinds of aggregates, characterized in that: at least one kind of aggregate is a slag obtained by performing slag-formation treatment on garbage incineration residues.

Abstract: A method of installing a patch in a pothole in a paved road including the steps of (1) undercutting the edges of the pavement defining the pothole to a uniform angle from the vertical; (2) excavating a portion of substratum beneath the pavement to undercut the pavement around the pothole, both undercuttings to increase the size of the patch's footing; (3) lining the undercut with a layer of filler material and tamping; (4) inserting an underlining wire mesh fitted to reach into the undercut beneath the pavement; (5) inserting and tamping additional filler material to an intermediate level of the pothole; (6) inserting a second wire mesh preferably fitted to the periphery of the pothole at the intermediate level; (7) around the periphery of the pothole spacing and anchoring a plurality support dowels into the undercut pavement edges at about the intermediate level; and (8) filling and tamping the pothole level with existing pavement surface.

Abstract: The reinforcing method of the invention comprises the steps of removing asphalt from a concrete slab 2 of a road bridge, placing a reinforcing fiber sheet 20 onto the upper surface of the slab, preparing a fiber-reinforced composite material by impregnation with a resin 13 and causing the resin to set, coating an adhesive 22 onto a reinforcing material 21 comprising the foregoing composite material, sprinkling sand 23 thereover to form irregularities of sand 23 on the upper surface of the reinforcing material 21, hardening the adhesive 22, then coating a solvent-based asphalt primer 24 onto the sand 23, and placing asphalt 7 again, thereby completing the reinforcing operation.

Abstract: A rigid concrete slab for conveying vehicular or railroad traffic which is provided with functional longitudinal beams that extend or protrude downward from the underside of the slab and are fully and continuously supported by the underlying material. The attached beams enhance, strengthen and stabilize both longitudinally and transversely. Friction and suction, or interface adhesion, between the beams and the underlying material in which it rests causes the beams to act as anchors thereby further resisting displacement or distortion of the slab.

Abstract: Film-forming bitumen-in-water mixed emulsions comprising intimate immixture of (i) an oil-in-water emulsion of a hard bituminous material and (ii) an oil-in-water emulsion of a soft bituminous material, are well suited for the production of storage-stable coated particulates, notably cold dense building and paving materials such as aggregate and gravel, useful for the construction of, e.g., road and highway surfaces via compaction thereof.

Abstract: A process and a machine for forming a bonding layer for bonding a bituminous coated material layer on a support. The process includes application of a surface-active agent on the support, application of a bituminous emulsion on the surface-active agent on the support, and application of a breaking agent on the bituminous emulsion to form the bonding layer. A road-type coating made by the process and, therefore, including such a support layer, a bonding layer on the support, and a bituminous coated materials layer on the bonding layer. To perform the process, a machine includes a frame, a displacement mechanism on the frame, a bituminous-emulsion spreader on the frame, a surface-active agent applicator on the frame, and a breaking agent applicator on the frame.

Abstract: An asphaltic concrete or paving material includes from 5 to 20 percent or more of granular recycled plastic, which supplements or replaces the rock aggregate component of the mixture. The material produces a structurally superior paving material and longer lived roadbed. The paving material includes any and all residual classes of recyclable plastic, including thermosetting plastics and other plastics having little to no current widespread utility. The material produces roadbeds of higher strength with less total asphalt thickness and having greater water impermeability, and is most useful for all layers below the surface layer. The recyclable plastic component of the material is preferably a mixture of all recyclable classes 3 through 7, or of those materials from such classes from which potentially more valuable recyclable materials have been selectively removed. The paving product is preferably formed by a process of shredding or mechanically granulating used and industrial waste plastic to a no.

Abstract: An element suitable for building permanent tennis courts and repairing existing clay courts, comprising a structured textile support forming an open-structured mat and consisting of rot-proof synthetic fibres, which is filled with a first layer essentially consisting of sand with a particle size suitable for drainage, and a second surface layer consisting of ground brick with a smaller particle size than the underlying layer.

Abstract: An improved roadway patching system and method is provided for repairing potholes (12) or other damaged roadway areas. The patching system of the invention includes a lower asphaltic liner (18) which is adapted for placement within a pothole (12) or the like in closely conforming and adhering relationship with the inner contour (14) thereof in order to present a substantially water-impervious barrier. A fill (34) is then placed within the pothole (12) atop the liner (18). The patch is completed by provision of an asphaltic, water-impervious, substantially non-stretch top mat (20) which is applied over the fill (34) and engaging and adhering to the liner (18) and adjacent portions (16) of the roadway (10).

Abstract: An asphaltic roadway base or sub base which includes a by-product of petroleum refining units utilizing a Residuum Oil Supercritical Extraction (ROSE) process. The base course is a designed mixture of a resin-asphaltene residuum and aggregate, wherein the resin-asphaltene residuum has a penetration less than 10 at 77.degree. F. and a softening point above 150.degree. F., the resin-asphaltene residuum is present in the range of 3% to 12%, by weight of the composition, and the aggregate is present in the range of 88% to 97%, by weight of the composition.

Abstract: A mining drum assembly for use in the mining of a substrate that has a drum. A plurality of bars, each one of the bars has a plurality of laterally-spaced apart mining bit assemblies connected thereto, are affixed to the surface of the drum. The bars define first and second regions of discrete bars equi-spaced about the circumference of the drum. The bars of the first region being circumferentially and laterally spaced-apart from the bars of the second region.

Abstract: The present invention provides a stress absorbing composite for road repair that comprises a low stiffness geotextile, a viscoelastic material disposed over the low stiffness geotextile, and a high stiffness geotextile disposed over the viscoelastic material. Also provided is a method for retarding reflective cracking in an overlay using a stress absorbing composite and a repaired road containing a stress absorbing composite.

Abstract: A method of forming cellular rigid pavement utilizing a planar orthogonal matrix of upwardly convex domed forms over which concrete is poured to create a corresponding matrix of voids within the concrete around which downward loads are distributed and which minimizes pavement warpage and concrete volume, and a panel of such domed forms used in practicing the method.

Abstract: Reflective bodies (6, 7) made of a transparent material are provided at their surface with distributed color spots (8), so that light can enter and exit the reflective bodies with enough intensity to generate a retroreflection. These reflective bodies are to be applied on road or other traffic surfaces, on road markings or on traffic guiding surfaces in order to make them visible, in particular at night or in rain.

Abstract: This invention relates to asphalt concrete paving systems and how they are structured. For more than the last sixty years, such systems have been one integrated structure consisting of (1) one or more "lower supporting courses" and (2) one or more "surface wearing courses". Such systems are integrated structures and, therefore, cracking starting from either the top or bottom will proceed through the entire structure. This invention provides a third type of course, a "separation course" between the "lower supporting courses" and the "surface wearing courses". The "separation course" prevents bonding of the "lower supporting courses" to the "surface wearing courses". This "separation course" is a barrier to stop the cracking at this point. It is also waterproof and will stop water from getting into the "lower support courses" and causing them to fail. The concept of a "separation course" is applicable to both roadways and running tracks.

Abstract: A method of producing a cold mix asphalt paving composition by:(a) separating non-asphalt impurities from an asphalt rubble obtained from a reclaimed asphalt pavement to produce a purified asphalt rubble;(b) comminuting said purified asphalt rubble to obtain sized asphalt-aggregate mixture;(c) testing said sized asphalt-aggregate mixture to determine the percent of asphalt present in said asphalt-aggregate mixture; and(d) blending an asphalt emulsion with said asphalt-aggregate mixture in an amount so as to yield a cold mix asphalt pavement composition comprising from about 4.0% to about 6.5% by weight of asphalt.The cold mix asphalt paving composition is used to coat roadway surfaces, parking lots, driveways, and the like. Once the cold mix asphalt paving composition has been applied to a surface, a top coat may be overcoated onto the cold mix asphalt pavement.

Abstract: An economical roadway marking sheeting matrix that includes hydrated alumina as its main inorganic filler is disclosed. Use of hydrated alumina in the roadway marking sheeting matrix results in reduced mixing and production time, reduction of aging time, lower transportation cost due to lower weight, and lower material cost. In a preferred embodiment, hydrated alumina having a particle size of less that one micron and a GE brightness of 94 or more is incorporated as the main filler system in a roadway marking sheeting matrix. The resulting sheeting matrix may then be fabricated into a road marker by bonding to an upper layer which may include glass beads, and to an adhesive layer for attachment to a road surface.

Abstract: A road surface specially designed to enhance skidding includes an asphalt mixture containing a plurality of substantially spherical coarse aggregates, said aggregates having a randomly continuous shape on their upper surface. A method to provide this surface involves replacing a road having an asphalt coating with the road surface of the present invention.

Abstract: A method for the preparation of asphalt concrete from organic contaminated soils such as petroleum contaminated soils in batch mix processing, with reduced levels of pollution emissions. The resultant asphalt concrete is also either strengthened or the asphalt content can be reduced without loss of strength. The contaminated soil is added to superheated aggregate (380.degree.-450.degree. F.) in a closed mixer, in amounts ranging from 5-25% by weight of total aggregate, and the combination is mixed to uniformity, prior to addition of the asphalt cement binder. A conveying system for the cold wet contaminated soil is also described.

Abstract: The invention refers to a base structure, particularly for tennis courts, comprising a top layer consisting of a solid microporous plate comprising a mixture from 50% to 98% fine clay and 2% to 50% cement, the thickness of the top layer being of at least 2 cm in the non-compacted state, wherein the solid microporous plate results from chemical reaction by means of water added to said mixture. The invention also provides a tennis court, the surface of which is inclined at least 0.25% as to permit excess water to flow towards the center or one side of the court. A method of building such a court is also described.

Abstract: A method of making hot air in the range of 200 degrees (F) from the sunlight striking the paved surface of a parking lot is described. The transparent surface is above an opaque surface forming a homogeneous solid. Beneath the pavement are parallel pipes for the movement of air. The air is compressed into the pipe and sucked out of the pipes via photovoltaic powered fans. Due to the heat transfer through the walls of the pipes, ambient air is made hot. The hot air can then be used economically as precombustion air to a typical fossil fuel burner as oil, coal or gas. While the hot air would not be able to provide enough heat to power an entire power plant or oil refinery, the net result is more efficient fuel burning, with less air pollution produced, perhaps reducing fuel consumption by 5 to 10 percent. While the parking lot pavement may be made of recycled materials as glass or plastic, the pavement is still capable of supporting the weight of an automobile while also producing hot air.

Abstract: Thermoplastic based pavement marking sheets are disclosed. The marking sheets employ a conformant composite material including: polyolefin and a nonreinforcing mineral particulate; and/or a thermoplastic upper surface. Preferably, the sheet's thermoplastic upper surface is embedded with reflective elements and/or skid-resistant particles. A solventless process of embedding particles in thermoplastic pavement marking sheets is disclosed. Processes for preparing marking sheets are also disclosed. Conformant pavement marking sheets which may be applied in cooler conditions are also disclosed.

Abstract: A composition for use as a road base or levee fill. The composition comprises catalytic cracking catalyst particles in the size range of 1 to 200 microns and a binder the type and amount of which depend on the end use. Hydrated lime is employed as the binder in road base construction while hydrated lime, portland cement, fly ash or mixtures of fly ash and portland cement can be used in levee construction. The spent catalyst particles are present in amounts of 80% to 96% and the binder is present in amounts of 4% to 20%, both percentage ranges being determined according to the dry weight of the composition.

Abstract: The present invention is a frame for installing a grid section of cells of a grid confinement system for soil. The frame is generally planar having holding members on two sides to engage the grid section of cells. Each holding member can be independently controlled to engage or disengage the grid section of cells. Also, the frame is ventilated. The frame facilitates road center line reference, edge cell interlock and underwater installation.

Abstract: A floor module structure is disclosed comprising a wearing surface such as a cemmentitious compound or a laminate of wood strips attached to a steel plate base that is supported by a plurality of spaced steel bars welded to the underside of the plate for vertical support for sustaining heavy dynamic and static loads.

Abstract: A process for making materials for road construction includes separating water from oil well drilling mud or other waste material sludge to form a partially dried sludge. The partially dried sludge is subjected to heat to further to dry the sludge. The dried sludge is combined with an open cell aggregate in plug mill to form a product. This product has a thermal conductivity of approximately 0.36 B.t.u./(hr.)(sq. ft.)(deg.F./ft.). The product is then deposited over frozen ground during the construction of a road.

Abstract: A synthetic clay court composition is provided having a first aggregate-containing elastomeric lamina applied to a substrate. Prior to the elastomer curing aggregate is broadcast over the elastomer in an amount sufficient to form a second free-flowing lamina.

Abstract: Bitumen-polymer compositions are prepared, by mixing, at between 130.degree. C. and 230.degree. C., a bitumen with a styrene and conjugated diene copolymer and a sulphur source, the copolymer and the sulphur source being added to the bitumen either directly, or in the form of a mother solution in a hydrocarbon oil, then by maintaining the whole under stirring at between 130.degree. C. and 230.degree. C. for at least fifteen minutes.By way of sulphur source is used 0.005 to 15% by weight, with respect to bitumen, one or several polymeric or not, cyclic or linear polysulphides, and especially ditertiododecyl or dinonyl pentasulphide. The bitumen-polymer compositions obtained can be used for the obtention of superficial road coverings and present a constant quality of its properties.

Abstract: The process and composition for improving asphalt paving by mining existing roads for their asphalt content, blending the mined or recycled asphalt with new asphalt which is unusually high in resin content to provide a pavement of increased ductility and improved penetration characteristics which will wear better.

Abstract: An ice aggregate road structure and apparatus for constructing. The road structure comprises crushed ice aggregate from which fines smaller than 0.1 inch have been removed which aggregate is placed in the desired shape and then bonded by a deeply penetrating application of water which bonds aggregate particles at their points of contact. The apparatus includes a distribution box for receiving ice aggregate and distributing it over a road section to be paved coupled with a bond water distributing means for quickly applying bond water after proper distribution and shaping of the aggregate. The distribution and water spray elements are carried on rails which are in turn supported from a pair of spaced apart carriages containing water heating and pumping means and appropriate power sources for operating the equipment. The carriages are spaced apart to allow trucks to deliver aggregate.