Abstract: A method for making an object and an apparatus for making the object in accordance with the method is disclosed. A section of the object is formed by irradiating a layer of material with a radiation, the layer of material being disposed on a material receiving surface of a flexible element shaped by a shaping member contacting the flexible element. The radiation passes through the member and the flexible element. The member is tilted to induce a peeling separation of the member from the element.

Abstract: A dry-bulk tanker for the provision of binding agent for soil stabilization for a spreading device, comprising a storage container (10) for binding agent. An intermediate chamber (20) is connected to the storage container and is also connected to a compression chamber (40). A conveying device (22) for conveying of binding agent into the compression chamber (40) is arranged in the intermediate chamber (20). A conveying channel (44) is connected to the compression chamber (40). The conveying channel (44) can be connected to a spreading device (58). Furthermore, a pneumatic line (46) for feeding of conveying compressed air is connected to the compression chamber (40) and/or the conveying channel (44).

Abstract: In some embodiments, a photoreactive 3D printing system and methods comprise providing a system with a resin tub comprising a membrane, wherein the membrane rests on a physical tension element such that increasing downward force on the resin tub induces increasing tension on the membrane. The system also comprises a plurality of sensors comprising a resin bulk temperature sensor, and a print recipe comprising information for each layer in a 3D printed part to be built on the print platform. In some embodiments, a resin bulk temperature is measured, and the information in the print recipe, including information related to the downward force on the resin tub, is updated during a printing run based on the resin bulk temperature measurement. In some embodiments, the print recipe can be updated during a printing run based on input from at least two sensors of the plurality of sensors.

Abstract: A conduit stub-up eliminator assembly as disclosed herein comprises an elbow including a first connector end for securing to a horizontal in-slab raceway, in use, and a second connector end having a threaded collar with an opening for selectively receiving a vertical above slab raceway, in use. A stub extends radially outward proximate the collar. A supporting device comprises an elongate rail having a plurality of spaced openings sized to receive the stub and having a length corresponding to the select thickness. A turned in base is for attachment to formwork prior to pouring of concrete to form the concrete slab. The pipe fitting stub is received in a select one of the rail openings so that the collar opening is spaced from the base a distance corresponding to the select thickness so that the collar opening is flush with the surface of the concrete slab.

Abstract: A three dimensional printing system for manufacturing a three dimensional article includes a movement mechanism, a support tray, a resin vessel, a light engine, a sensor, and a controller. The support tray is mounted to the movement mechanism and has a lower surface for supporting the three dimensional article. The resin vessel includes a transparent sheet defining a lower bound for resin contained therein. The light engine projects pixelated light through the transparent sheet and to a build plane. The controller is configured to (a) receive a start indication for a build process, (b) operate the sensor, (c) determine if polymerized build material is in a flag region from the sensor signal, and (d) if polymerized build material is determined to be in the flag region, halt the build process.

Abstract: Systems and methods of shotcrete construction are contemplated whereby guide rails are placed in proximity and forward to a shotcrete receiving surface, with any guide rails disposed directly in front of the shotcrete receiving surface being configured to be offset from the receiving surface allowing shotcrete to be sprayed behind the offset guide rails. Following application of shotcrete, a screed configured to engage with and traverse along at least two of the guide rails may be used to rod the shotcrete via a protruding region of the screed extending beyond the guide rails, thereby removing excess shotcrete and imparting to the shotcrete surface a contour at least partially defined by the configuration of the guide rails and the configuration of the protruding region of the screed. Complex, precise, and even exotic architectural shotcrete installations may be created in this fashion by providing a suitable set of guide rails and screed.

Abstract: A decorative concrete with a very uniform finish surface and a method of fabricating the same is disclosed. A concrete mixture is poured over a subgrade which defines an exposed surface. The exposed surface is finished with any of several techniques, and the surface is then worked with an abrasive material, and additional techniques are used to color and seal the concrete.

Abstract: A recoater for applying a building material in a device for manufacturing a three-dimensional object within a build area by solidifying layers of the building material at the points corresponding to the respective cross-section of the object is suitable for applying a building material layer by moving across the build area in a movement direction. The recoater comprises a first scanning device including a first line sensor, for capturing at least a subarea of the build area.

Abstract: The present invention relates to a process for producing precast products in an airtight enclosure, which comprises the steps of a carbonation of pre-dried concrete precast units by feeding CO2 gas into a closed airtight enclosure under near ambient atmospheric pressure (psig between 0 and 2) and/or low pressure (between 2 and 15 psig) conditions, wherein said pre-dried concrete units have lost between 25 to 60% of their initial mix water content.

Abstract: A method for producing a three-dimensional object (2, 10) and a boundary region (8, 9, 18) by layer-wise applying and solidifying of at least one building material, wherein the three-dimensional object (2, 10) is produced with a first generative production method on the basis of a first building material and the boundary region (8, 9, 18) is produced with a second generative production method, which is different from the first generative production method, on the basis of a second building material. The first generative production method comprises the steps: applying a layer of the first building material on a building base (11, 12) or on an already previously applied layer, selectively solidifying the applied layer at positions corresponding to the cross-section of the object (2, 10) in the respective layer and repeating the steps of applying and selectively solidifying until the object (2, 10) is completed.

Abstract: A wind turbine foundation comprising a concrete support slab having a horizontal rebar grid therein, a concrete pedestal integral with the support slab and having vertical post tensioning elements therein and a plurality of concrete ribs on top of and integral with the support slab and integral with the pedestal, the ribs having rebar therein and extend outwardly from the pedestal, the pedestal, slab and ribs are connected to each other to form a monolithic foundation. The foundation design reduces the weight and volume of materials used, reduces cost, and improves heat dissipation conditions during construction by having a small ratio of concrete mass to surface area thus eliminating the risk of thermal cracking due to heat of hydration.

Abstract: A three-dimensional printing apparatus and a method for calibrating printing inaccuracy thereof are provided. A printing head of the three-dimensional printing apparatus is adapted for moving along a straight printing path on a datum plane and simultaneously feeding out forming material, so as to generate a layer object on a supporting surface of a platform. If a path distance of the straight printing path is greater than a threshold, a plurality of linear compensation relationships respectively corresponding to a plurality of first zones of the supporting surface are used for calculating a first compensation value of a starting point and a second compensation value of an ending point. If the path distance of the straight printing path is not greater than the threshold, a common compensation values is decided based on at least one of second zones and which is corresponding to the starting point and the ending point.

Abstract: Systems and methods for constructing concrete foundations are provided which allow for rapid and high-precision placement and alignment of anchor bolts across large distances. A frame system is constructed outside of an excavation and then suspended, using supports, over an excavation. The frame system can include a frame having one or more templates for anchor bolts, a form suspended from the frame, and a mat and cage assembly tied to the frame. The frame system can be aligned in proper position and the anchor bolts placed in the frame system before the concrete is placed. In this way, the anchor bolts can be cast in place as the footing is placed.

Abstract: An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. The apparatus includes a solidification substrate assembly that is tiltable about a tilting axis to peel a solidification substrate from a recently formed object surface and to level the solidification substrate assembly and squeeze out accumulated solidifiable material between the solidification substrate and the recently formed object surface. Intelligent peeling and leveling may also be provided by providing a tilting parameter database that is used to adjust tilting parameters based on object geometry and/or solidifiable material properties.

Abstract: A system is disclosed for use in additively manufacturing a structure. The system may include an additive manufacturing machine, a memory having computer-executable instructions stored thereon, and a processor. The processor may be configured to execute the computer-executable instructions to cause the additive manufacturing machine to discharge a path of composite material, and to make a determination regarding existence of support located at a side of the path of composite material. The processor may be further configured to execute the computer-executable instructions to selectively cause the additive manufacturing machine to compact the path of composite material after discharge with a variable pressure that is based on the determination.

Abstract: Microsphere comprising an outer shell enclosing a substantially hollow inner space, the outer shell comprising a fluid permeable porous structure, the fluid permeable porous structure comprising interconnected pores, the microsphere being capable of maintaining a vacuum in its substantially hollow inner space when its outer shell is sealed.

Abstract: An apparatus for bottom-up fabrication of three dimensional objects, the apparatus comprising: a vat for a photosensitive polymer, the floor of the vat including a working surface arranged such that, in use, light incident on the working surface interacts with the photosensitive polymer at the working surface to fabricate a portion of the three dimensional object; a build platform capable of being inserted into the vat, the build platform having a planar surface; an elevator mechanism capable of adjusting the separation between the working surface of the vat and the planar surface of the build platform; and a rotation mechanism capable of varying the relative rotational position of the vat relative to the build platform, the relative rotation being about an axis which is normal to the working surface of the vat.

Abstract: An additive manufacturing system for printing three-dimensional parts, the system comprising a heatable chamber with a port, a print foundation, a print head configured to print a three-dimensional part onto the print foundation in a layer-by-layer manner along a printing axis, and a drive mechanism configured to index the print foundation along the printing axis such that, while the print head prints the three-dimensional part, the print foundation and at least a portion of the three-dimensional part pass through the port and out of the heated chamber.

Abstract: This disclosure describes devices and methods for forming voids in or adjacent concrete structures. In some embodiments, a device may include a structure. The structure may be substantially planar. The structure may include a plurality of channels extending therefrom. In some embodiments, the channels are closed at a first end distal from the structure. In some embodiments, the channels are open at a second end proximal to the structure. In some embodiments, the device may be formed from a molded pulp. The molded pulp may be configured to inhibit penetration of water. In some embodiments, the device may be configured to substantially support poured concrete during at least a portion of a curing process of the poured concrete.

Abstract: Disclosed is an additive manufacturing device that facilitates the manufacturing of relatively large 3D objects at a short time. The device uses radiation-curable resin and radiation curing system. Layer shaping members are disclosed to provide both for shorter manufacturing time of an object, minimizing waste of resin and reduction of weight. Curing radiation sources are also designed to minimizing waste of resin and manufacturing time.

Abstract: A method is provided for treating the outer surfaces of a plurality of glass bubbles. That method includes loading a plurality of glass bubbles into a processing vessel having a roughened lining and displacing the processing vessel so that the plurality of glass bubbles move against the roughened lining to thereby roughen the outer surfaces. Alternatively, or in addition, the glass bubbles are subjected to air plasma treatment to increase the surface energy of the glass bubbles.

Abstract: The invention is a method for producing a three-dimensional object in layers through stereolithography, comprising the following operations: moving a supporting surface (6a, 7a) near the bottom (2a) of a container (2) containing a liquid substance (3), so as to arrange it in a predefined operating position (17); selectively irradiating a layer (6) of liquid substance (3) with pre-defined radiation (4), in such a way as to solidify it against the supporting surface (6a, 7a). The approaching movement (11) comprises a plurality of approaching moves (12, 12a, 12b, 12c) having corresponding predefined lengths (13, 13a, 13b, 13c), spaced by corresponding intermediate stops (14, 14a, 14b) for corresponding predefined time intervals (15, 15a, 15b), the intermediate stops (14, 14a, 14b) being carried out when the supporting surface (6a, 7a) is at least partially immersed in the liquid substance (3).

Abstract: A film for application to the upper surface of a floor covering comprising: (a) a blend of an acrylic resin and a fluoropolymer resin; and, optionally (b) anti-slip particles wherein the film comprises two or more layers. A method of forming the floor covering is also disclosed.

Abstract: Various embodiments provide surface compositions and methods for repairing durable and/or load-bearing surfaces including roadway voids, manhole structures, and/or safety flooring. Compositions and methods may comprise utilizing a liquid binder, catalyst, and/or primer to provide durable, waterproof, and/or long-lasting surface compositions to dispose within the roadway voids and/or to coat flooring. The surface compositions may cure rapidly through an internal exothermic reaction process to form the repair and/or the safety flooring. In some embodiments, filler materials may be disposed within the liquid binders to provide elasticity, compression, slip resistance, heat transfer, reduced cure time, and/or a desired surface texture to the surface composition.

Abstract: A system for constructing a reassemblable structure is disclosed.

Abstract: An assembly for transferring solid particulate matter has a pressurized vessel for retaining a pre-determined quantity of the solid material. A transfer conduit connected to the vessel carries the solid material to a loading vessel, be it a processing tank, a storage vessel, or any other similar container. A discharge nozzle carried by a distant end of the transfer conduit is connected to a vacuum source, whereby a slight vacuum is created at the discharge opening. A separate dust removal conduit is secured immediately adjacent to the discharge nozzle for removal of the dust particles away from the discharge nozzle. The dust particles are collected in a separate vessel, which is mounted in a flow of air from the dust collection conduit and an exhaust fan. Mesh sleeves suspended in the vessel, capturing the dust particles on exterior surface thereof. Periodically, the dust particles are dislodged from the sleeves by blowing air through the sleeves.

Abstract: A decorative wall tile mold for the in-situ production on a building, wherein the mold, which can be demolded twice, is a sheet with pierced work, comprises the following detachable lateral structures: an insider layer: a bottom film is set at the bottom surface thereof, the bottom film and the building have a first combinative force; an outer layer: a surface film is set on the exterior surface thereof, a self-adhesive glue section is set up between the inside layer and the outer layer, which makes the outer layer and the inside layer have a second combinative force, and the second combinative force is less than the first combinative force. A method for the in-situ production of decorative patterns on a building is also provided.

Abstract: A molded flexible tool for use in stamping a pattern into a base material, such as concrete, that has integrally formed segments defining openings to form grout lines in the base material. The flexible tool can be folded or rolled for storage and easily and quickly unrolled for deployment, use, and then cleaned and refolded or rolled for storage.

Abstract: Improved apparatus for in-situ forming of polymeric materials. During formation, the polymeric materials can be applied to horizontal or inclined surfaces such as roofs. The improved apparatus is automatically controlled and laser guided.

Abstract: The invention comprises a concrete form. The form comprises a first concrete forming panel having a first primary surface adapted for forming and contacting plastic concrete and a second primary surface opposite the first primary surface; a layer of insulating material contacting and substantially covering the second primary surface of the first concrete forming panel; and an insulating blanket adjacent the first concrete forming panel. A method of using the concrete form is also disclosed.

Abstract: A drainage channel includes a first sidewall provided with a first rail member extending along a longitudinal axis of the drainage channel. A second sidewall extends along the longitudinal axis of the drainage channel with the first and second sidewalls at least partially defining an interior area of the drainage channel. A first locking insert is at least partially positioned within a first rail opening of the first rail member, with the first locking insert including a first insert opening. Further examples include methods of making a drainage channel.

Abstract: The present invention relates to a method for producing a tower segment of a concrete tower of a wind energy installation, comprising the steps: providing a segment mold having at least one formwork for defining a mold of the tower segment that is to be produced and for filling with concrete; filling the segment mold with concrete in order to form the tower segment by the subsequent hardening of the concrete; measuring the tower segment thus hardened for creating a three-dimensional, virtual actual model of said tower segment; producing said three-dimensional actual model; comparing the three-dimensional actual model with a predefined mold, in particular a stored three-dimensional, virtual target model; and determining a deviation between both virtual models and changing the segment mold, in particular changing the at least one formwork when the deviation exceeds a first predefined threshold value.

Abstract: Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions.

Abstract: The present invention relates to a method and system for reinforcing building structural components. The system includes a rigid continuous stirrup elongated along a longitudinal axis. Portions of the stirrup may be inserted from a lateral direction into cells between webs of the building structural component in an unobstructed fashion. The system also includes at least one reinforcing member situated within a corridor along the length of the stirrup.

Abstract: Method for manufacturing modular, hollow, prismatic, monolithic reinforced-concrete elements of rectangular section, which includes the stages of concreting their side walls in two horizontally arranged formwork structures, carrying out a rotation of said formwork structures so as to leave them arranged vertically on either side of a third formwork, with said third formwork horizontal, then concreting the floor slab, placing formwork between the side walls for concreting of the ceiling slab and withdrawing the modular element, so that a high degree of monolithism is achieved, a method in which all the concretings are carried out in the horizontal, and precise control is achieved over the measurements of the element obtained.

Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.

Abstract: A method for the monolithic furnaces construction with refractory concrete for the manufacture of glass through the formation of temporary structures for the filling and molded of refractory concrete.

Abstract: An adjustable form having at least two elongated form parts which are capable of being attachable to each other in an adjustable manner relative to each other. A kit for an adjustable form having a package for containing at least two elongated form parts which are either or both adapted for or capable of being attachable to each other in an adjustable manner. A method for use of a form unit including assembling a form unit; disposing the form unit in the creation of an overall structure form for the creation of the ultimate structure; creating the ultimate structure.

Abstract: A new procedure for constructing cryogenic storage tanks involves erecting a freestanding metal liner. The liner is sized and configured to withstand the hydraulic forces the concrete wall of the tank being poured without the need for temporary stiffeners on the inside surface of lower portions of the liner. Lateral tension ties can be connected to anchor ties on an outward surface of the liner and used to tie the liner to outer formwork. These ties may be spaced up to about 2 m apart. Studs can also be provided on the outer surface of the liner, and a cylindrical ring of cryogenic steel can be integrated into the liner.

Abstract: A method and an apparatus for the protection of a railroad rail, a direct fixation plate or another support unit, a rail to rail connection and a rail to plate connection contacting with concrete upon placing of concrete during construction. The method comprises a step of disposing a mask over a railroad track having a railroad rail, a rail connector and a rail tie to protect the railroad track while placing concrete, the mask configured to cover the rail connector and tie. The mask has a connecting portion, a central portion, an extending portion configured to mask an upper longitudinally extending portion of a railroad rail, and at least one perpendicular section disposed to cover a railroad tie, direct fixation plate or other support unit.

Abstract: This disclosure describes devices and methods for forming voids in or adjacent concrete structures. In some embodiments, a device may include a structure. The structure may be substantially planar. The structure may include a plurality of channels extending therefrom. In some embodiments, the channels are closed at a first end distal from the structure. In some embodiments, the channels are open at a second end proximal to the structure. In some embodiments, the device may be formed from a molded pulp. The molded pulp may be configured to inhibit penetration of water. In some embodiments, the device may be configured to substantially support poured concrete during at least a portion of a curing process of the poured concrete.

Abstract: A method and apparatus for constructing railways for a rubber-wheeled AGT system are provided. The method includes forming guideways, along which guide rollers of a light rail vehicle moves when the light rail vehicle runs along railways and forming, using a pressing unit of a finisher, the railways applied with concrete such that the railways have a same trace as the guideways by moving a finisher along the guideways. The apparatus includes a vehicle that is provided with rollers to run along guideways installed on vertical walls of a road bed and a pressing unit that is disposed under the vehicle to make lateral and longitudinal traces of railways correspond to lateral and longitudinal traces of the guideways by pressing and forming a top surface of railway concrete during the running along the guideways.

Abstract: Modular mold equipment for producing concrete culverts with tight tolerances. Modular mold equipment having a coupling plate is used to align and interconnect components of the mold. The components being aligned may have recesses for receiving the coupling plate. Modular mold equipment system with an extended size range to cover all standard concreted duct product sizes. Modular mold equipment having a pallet guide adjustment mechanism adapted for setting the pallet at a desired location in relation to a form. The desired location is based on a wall thickness of a concrete culvert to be produced. Modular mold equipment having a core that includes a core corner and another core component adapted to be coupled to the core corner, and locking apparatus adapted to lock the core corner to the other core component via a mechanism that extends outside the core.

Abstract: Retardant-free inorganic polymer compositions and methods for their preparation are described herein. The methods include mixing reactants comprising a reactive powder and an activator in the presence of water and forming an inorganic polymer product. In some examples, the method includes continuously feeding the resultant mixture to produce the inorganic polymer product. Also described herein are mixtures and inorganic polymer compositions. Further described are building materials formed according to the methods.

Abstract: An apparatus and method of controlling concrete vibration is disclosed. The apparatus includes a global positioning sensor adapted to provide a location of a vibrator relative to a concrete structure, a recording device adapted to record data during vibration of the concrete, and a data transmission device adapted to transmit the data to a processor for analysis of the data to determine if the vibration is in compliance. The vibrator is adapted to vibrate the concrete to remove air contained therein and promote concrete consolidation.

Abstract: A form liner system comprises a first form liner, a second form liner and a bridge member. Each form liner comprises a plurality of raised portions defining a plurality of cells and at least one partial cell. The form liners are arranged such that the partial cells form a collective cell. The bridge member can be oriented in said collective cell, wherein a first portion of the bridge member is oriented in the first liner partial cell and a second portion of the bridge member is oriented in the second liner partial cell.

Abstract: The present invention relates to a method, processes and system that allows thermal insulating and waterproofing of temporary and/or portable structures in such a manner that the underlying structures are insulated and waterproofed. Moreover, this system provides a rigid outer structure which allows the underlying structure to be removed and reused after the insulation and waterproofing system has been installed, leaving behind a rigid, insulated and waterproof physical structure.

Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.

Abstract: Embodiments of an adjustable and reusable brace, kicker and tie apparatus are disclosed herein. Various embodiments include a bracing arrangement for bracing an inner and an outer form for forming a concrete structure. In various embodiments, the bracing arrangement may include interior and exterior vertical bracing members and a horizontal tie member removably and/or adjustably couple the vertical brace members at respective top or bottom ends of the vertical brace members. In various embodiments, a pair of bracing arrangements may share an exterior vertical brace member, which may be angled, for providing support at a corner of a form. In various embodiments, various bracing arrangement may be employed to form a bracing cage. The bracing arrangements may be constituted with material or materials designed for reusability.

Abstract: A method for casting monitored pilings and a pour diverter used in connection with the method is provided. The method includes positioning a plurality of pile strands in a form, and then connecting a suspension assembly having at least one sensor to at least one of the pile strands so that the at least one sensor is located in a piling core area. A pour diverter, having a generally V-shaped configuration, is positioned over the suspension assembly. Concrete is poured into the form over the pour diverter so that a flow of the concrete into the form is split and flows down on either side of the suspension assembly until the at least one sensor is covered. The pour diverter is then removed to finish the casting. Preferably, provisions are provided on the pour diverter for holding or covering an antenna assembly during the pour, prior to it being placed into the concrete forming the piling.