Abstract: A concrete form system includes a concrete form and a rebar tree. The concrete form includes at least one support column disposed at a lower portion of the concrete form and first and second connection branches disposed at an upper portion or the concrete form. The first and second connection branches are configured to be connected to second and first connection branches, respectively, of another concrete form. The first and second connection branches at least partially form one or more channels therebetween. The rebar tree includes a rebar mounting assembly configured to hold one or more pieces of rebar in one or more desired positions. The rebar mounting assembly is configured to be disposed within at least one of the one or more channels at least partially formed by the first and second connection branches.

Abstract: A load-transferring connecting element establishes a connection between a first building element and a second building element. The load-transferring connecting element is adapted for transfer of force between the first and second building elements. The load-transferring connecting element includes an elongated box-shaped main body. A first end portion of the load-transferring connecting element is arranged for attachment into the first building element with a remaining second end portion of the load-transferring connecting element positioned so as to project from the first building element. The second end portion is adapted for being received in a cavity arranged in the second building element. The second end portion of the load-transferring connecting element is provided with an attachment area for attaching lifting equipment for handling of the first building element.

Abstract: A cornerbead for drywall construction having an elongated strip with a longitudinal nose bent at a substantially right angle and having a left side and a right side extending outwardly from the longitudinal arcuate nose; at least one raised portion extending the length of the left side; and at least one raised portion extending the length of the right side.

Abstract: The present invention provides a foundation connection device disposed within a concrete structure, securing the concrete structure to a foundation when a bolt engages the foundation connection device and is driven into the foundation. The device includes a tubular post defining a cavity. A base plate has upper and lower surfaces, an aperture through the surfaces, and the lower surface aligns with a bottom surface of the concrete structure. A stop plate defining a circular through-hole is within the tubular post and receives the bolt. The bolt has a bolt head and a bolt shaft, and when the bolt engages the foundation connection device and is driven into the foundation, the bolt head engages the stop plate and the bolt shaft extends through the circular through-hole of the stop plate within the cavity of the tubular post, and through the aperture of the base plate into the foundation.

Abstract: A stair stringer may include a body. The body may include a horizontal arm, a center angled portion coupled to the horizontal arm, and a vertical arm coupled to the center angled portion. The stair stringer may also include a first appendage coupled to a first edge of the horizontal arm, a second appendage coupled to a second edge of the horizontal arm, a third appendage coupled to a third edge of the vertical arm, and a fourth appendage coupled to a fourth edge of the vertical arm. The fourth edge may be adjacent the third edge. The first appendage, the second appendage, and the third appendage are parallel with respect to one another. A stairway system may include a first stair stringer and a second stair stringer. The second stair stringer may be an architectural chiral with respect to the first stair stringer.

Abstract: Described herein are methods for installing field-assembled flooring systems wherein the underlayment is a hybrid design that includes a combination of structural board and cementitious product. The hybrid design is configured to reduce or eliminate the curing time requirement after pouring the cementitious product (e.g., gypsum concrete). The field-assembled flooring systems can reduce or eliminate the chances of the onset of mold due to high moisture levels by removing the cementitious product from the prone areas and replacing it with structural boards. The structural boards (e.g., cellulose fiberboards) can be installed in non-critical areas such as underneath cabinets, around the perimeter of the floor, under bathtubs, in non-walk-in closets, anywhere drywall reaches the floor, or the like.

Abstract: Described herein are methods for installing field-assembled flooring systems that include isolation boards on a wall frame, a subfloor, or on both the wall frame and the subfloor. The underlayment can be a hybrid design that includes a combination of isolation panels and cementitious product. The field-assembled flooring systems can use mold-resistant isolation boards to reduce or eliminate the chances of the onset of mold and effects from water damage. The isolation boards can be installed on floors alone, on walls alone, or on both floors and walls to reduce the onset of mold and/or to reduce damage from water.

Abstract: A foldable building structure package having a first folded configuration and a second unfolded configuration. The package has a first enclosure component portion and an enclosure member selected from the group consisting of an enclosure component and a second enclosure component portion, with the enclosure member being joined to and moveable with respect to the first enclosure component portion from a folded position to an unfolded position to form a first part of the building structure in its second unfolded configuration. There is a first deployment bracket secured to the first enclosure component portion, a deployment strut adapted to be secured to the first deployment bracket at a first end and having a rotatable sheave at a second end, and a fastener positioned on the enclosure member for receiving a line run from the tang over the rotatable sheave.

Abstract: Described herein are methods and systems for installing flooring systems that provide waterproofing or water-control capabilities. The flooring systems can utilize a gypsum material or any other self-leveling or concrete material along with a structural board or any other type of cement, wood, gypsum board, compressed board, cellulose fiberboard, sheathing board, or sheet metal material. The flooring systems include a waterproof coating applied to the structural boards to provide the water-control features. The waterproof coating covers seams between structural boards and between structural boards and the subfloor.

Abstract: An aerated concrete-hybrid construction element comprises a plurality of support structure profiles integrated therein and arranged parallel to one another at a distance from one another. The support structure profiles have a rib running transversely to the plane of the construction element, each with a respective support structure limb angled in the same direction away from the plane of the rib and running parallel or approximately parallel to the adjacent outer surface of the construction element. The support structure limbs of the support structure profiles are cast into an aerated-concrete layer extending over the length of the support structure limbs in their juxtaposed arrangement.

Abstract: The present technology relates generally to a platform and concrete composite slab system used as a building material. A platform, is formed from joined, substantially coplanar boards with connector plates partially embedded between the boards such that a portion of the connector plates extend above the platform's top surface. A reinforcing material (e.g., wire mesh and/or rebar) can be arranged on the prongs or other portion of the connector plates spaced above the platform and concrete is poured over the reinforcing material and allowed to cure, forming a reinforced concrete layer that encases the connector plates and reinforcing material. The connector plates act as standoffs and help to suspend the reinforcing material in the middle of the concrete layer to increase the strength of the reinforced concrete and to fixedly anchor and bind the concrete layer to the platform, so as to establish a composite action between the platform and the concrete.

Abstract: Disclosed is a building frame structure having an edge beam and a construction method thereof. The frame structure includes: a main frame structure and a cantilever beam provided outside of the main frame structure, a beam supported by the cantilever beam, and an outer floor disposed between the main frame structure and the edge beam. The edge beam and the cantilever beam are preforms reserved with exposed reinforcing bars, respectively. The edge beam is provided thereon with a vertical sideboard and a temporary safety rail. The cantilever beam is a beam-shell structure provided with an inner recess. The outer floor is a laminated plate, a lower part of which is a preformed plate. The preformed plate, the edge beam, and the cantilever beam are connected to each other by concrete cast in situ at respective top portions thereof.

Abstract: A bracket for mounting panels to a carrier, the bracket comprising a base and two flanges extending away from the base, the base being located between the two flanges, each flange having an inwardly-facing surface and an outwardly-facing surface bounded by two side edges and a distal end, and wherein each flange comprises at least one outwardly protruding tab for engaging the carrier and thereby securing the bracket to the carrier, and wherein each flange further comprises a pair of slots for receiving a panel, each slot of said pair of slots extending from a different side edge of the flange at a location further away from the base than the outwardly protruding tab. A carrier and bracket assembly and a carrier, bracket and panel assembly are also provided.

Abstract: Method of forming a concrete slab to reduce or eliminate control joints includes preparing a substantially flat base, overlaying one or more barriers on top of the base, placing a concrete mixture on top of the barrier(s) and base to form a concrete slab, and allowing the concrete to cure without forming control joints. The base is prepared with a flatness of about ±¼ inch over 10 feet. A side edge is prepared along a periphery of the concrete slab by extending a vapor barrier from a bottom surface of the slab up the side edge toward a top surface of the slab and covering the side edge. A plurality of post-tensioning cables are positioned to extend through the slab and configured to compress and assist in controlling accelerated displacement of the concrete slab during curing and shrinkage. The concrete slab is formed of an evenly gradated and low slump concrete having high fiber content, minimized cement content, and maximized size of large aggregate.

Abstract: Constructive system comprising at least four modular elongated prefabricated floor elements, each floor element defining a longitudinal axis parallel to its long side and a transversal axis parallel to its short side, and being arranged coplanar in a 2×2 matrix configuration such that each floor element is adjacent to another element by one of its long sides and adjacent to another of the elements by one of its short sides, the ends of the short sides of the floor elements resting on linear supporting elements, the floor elements comprising in the vertical face of each of the long sides a longitudinal groove having the direction of the longitudinal axis such that a cavity is formed between each pair of adjacent floor elements, the cavities being filled with a grouting, the system including at least one duct extending continuously along the two cavities and a post-tensioned tendon within the duct.

Abstract: A permanent frost protected shallow foundation footing for a building is assembled from a plurality of form parts arranged in a chain that is partially below ground level to form a foundation perimeter. The form parts are made of a lightweight material such as insulating foam material shaped as an elongated sectional unit with an overhang part overhanging a cavity part of an interior cavity. The interior cavity has an opening for receiving a concrete pour concurrent with a concrete pour of a floor. Open ends of the assembled sectional units abut each other in end-to-end alignment to form an elongated cavity inside the perimeter chain of form parts that is filled with concrete. The overhang part may have a foot shape that fits inside the interior cavity of another form part that may also have a foot shape for compact storage or transport prior to assembly.

Abstract: A component building system combines both precast elements and cast-in-place elements that is cost effective, more cultural acceptance, and adaptable for constructing single story to high-rise building structures. The component building system comprises mostly open rib or closed sandwich wall panel components that are limited or non-load bearing panel connecting between main columns in the concrete frame superstructure.

Abstract: Two building panels are connected through a column. One panel is bolted to the column, for example by way of fasteners passing through holes in a rib of the panel into threaded inserts in the column. A second panel is also bolted to the column, for example to threaded inserts open to another face of the column. Further panels in an upper or lower story of a building may be connected to the same column such that vertically stacked panels are connected together. In another connection, one end rib of a panel is made to receive a second panel. The second panel can be attached to the end rib of the first panel to make a corner.

Abstract: A building system with modular precast concrete components uses bulb tee beams to span between walls that are distributed within the building footprint to open up the structure. Shallow corrugated slabs span between the bulb tee beams to form the floor deck. Optionally, double tee beams can be used at the periphery of the structure for longer spans.

Abstract: The present invention provides a lath furring strip having improved water-resistant and insulation features. The lath furring strip has portions of the mounting leg height not exceeding 0.365 inches for proper plastering of a wall. The lath furring strip is integrated into other architectural structures such as reveals, expansion joints and window flange coverings. By integrating these structures with a lath furring strip having water proofing features, there is increased water proofing of the entire architectural structure. One or more moisture barriers can easily be applied to the wall or furring strips that prevents seepage of moisture from the stucco on the lath to a wall or framing. By using an improved lath furring strip, fewer penetrations are needed to secure the furring strip to a wall compared to securing a lath directly to a wall.

Abstract: A high-strength partition top anchor and anchoring system is disclosed. The high-strength partition top anchor is a dynamic anchor that provides resistance to wall and deck separation during periods of high lateral forces. The partition top anchor is set within a slip tube embedded within the upper most portion of a partition or masonry wall and interconnected with a channel affixed to an overlying slab or deck structure. Foam filler is emplaced within the slip tube and a compressible mat is positioned between the wall and the overlying slab or deck structure to further temper the results of high lateral forces on the building structure.

Abstract: These modules can also be grouped as necessary for additional space, or other purposes. Each module consists of a horizontal slab, vertical walls along the perimeter of the slab, interior walls positioned according to individual spatial configuration, and a pre-stressed roof. Roof is a separate, pre-stressed element in which will be welded and bolted to the perimeter walls of the module. The roof is provided with holes for screws used for attachment, and PVC pipes for ventilation purposes. Walls consist of openings for light, and both air and human circulation.

Abstract: The present disclosure relates to a steel joist assembly for use in association with a concrete slab and being adapted to form a composite steel joist including a steel joist and a pair of end connectors. The steel joist has a top portion with a generally planar top surface and a planar web generally orthogonal to the generally planar top surface. An end connector is attached at each end of the steel joist. Each end connector has a strut and a diagonal member. The strut has a generally planar bottom surface which is attached to a portion of the generally planar top surface of the steel joist and the diagonal member is attached at one end thereof to the strut and at the other end thereof to a portion of the planar web of the steel joist.

Abstract: Cementitious construction system that employs beams with utility voids, special screws coordinated with AAC anchoring inserts, and interlocking fastening systems that make possible a precast building requiring no welding and having all the structural advantages of a poured in place structure but which is constructed in less time and cost than existing precast systems.

Abstract: A joining system arrangement for building elements the joining system arrangement having a box element adapted for embedment in a first building element, such that an open side of the box element is flush with a surface of the building element, and arranged such that a bridge element can be inserted into the box element, the box element having four side faces arranged around an open side and a back plate, wherein, at at least one side face of the box element includes at least one load transmitting element which is arranged externally on the at least one side face, the at least one load transmitting element configured such that at least two surface portions are formed, constituting a rounded face, which are turned away from the at least one side face of the box element and from each other.

Abstract: A cryogenic liquid storage tank includes a base plate and side wall extending upwardly. The base plate and side wall include an outer leaf enveloping an inner leaf. The outer leaf part of the base plate includes a lower, outer leaf concrete bottom plate on a substrate. The bottom plate is continuous with an outer leaf reinforced concrete layer of the outer side wall. An inward surface of the bottom plate and concrete layer of the outer leaf are lined with a continuous outer leaf metallic membrane. A bottom insulation layer is arranged above the outer leaf metallic membrane on the bottom plate. The inner leaf includes an inner leaf concrete bottom layer on the bottom insulation portion. The inner leaf metal membrane is lined with an inner leaf inner concrete layer. The outer leaf hoop stress reinforced outer concrete wall supporting an insulated dome structure.

Abstract: An arch and a shelter structure made from at least one arch. The arch is made up of two ribs, each having a curved top portion beginning at said top end of the arch that follows a curve of an ellipse having a major axis equal in length to the span of the arch and a minor axis equal in length to the height of the arch. A curved side portion is joined to each rib by a fillet blend section. The curved top portions of the two ribs contact one another and are attached to one another to form an arch having a half-hexoid shape.

Abstract: A pre-cast panel has forms mounted thereon for forming post-like flanges and a footing. Upon erection of an array of panels, the flanges and footing may all be cast on-site, with appropriate reinforcing/coupling means present within the form core volumes, by filling such forms with binder material such as concrete. Optionally, an upper beam may also be formed in a similar manner, the pre-cast panel being provided with an upper beam form which is attached to the wall portion of the panel and interconnected to the previously described forms.

Abstract: Precast wall systems and methods for constructing a high-rise building using the precast wall system is disclosed. In one embodiment, the system includes a plurality of interconnected precast panels, each having a top end plate, a bottom end plate, a plurality of vertical bars disposed between the end plates and a cementitious material encasing the vertical bars and defining a plurality of sides of the respective panel. A first of the precast panels has a first column member half defining a right side of the first panel, a second of the precast panels has a second column member half defining a left side of the second panel such that, when the right side of the first precast panel and the left side of the second precast panel are disposed horizontally adjacent to each other, the first column member half and the second column member half collectively form a column member.

Abstract: A joint between two adjacent faces (14) of concrete elements is formed by overlapping headed bar (16) with transverse studs (22) between the bars.

Abstract: Precast wall systems and methods for constructing a high-rise building using the precast wall system is disclosed. In one embodiment, the system includes a plurality of interconnected precast panels, each having a top end plate, a bottom end plate, a plurality of vertical bars disposed between the end plates and a cementitious material encasing the vertical bars and defining a plurality of sides of the respective panel. A first of the precast panels has a first column member half defining a right side of the first panel, a second of the precast panels has a second column member half defining a left side of the second panel such that, when the right side of the first precast panel and the left side of the second precast panel are disposed horizontally adjacent to each other, the first column member half and the second column member half collectively form a column member.

Abstract: A modular concrete building is made of a plurality of precast concrete panels which may be assembled to provide a building. The panel sections include lower frame panels or support members, wall panels, floor panels, and flat roof panels. The building may be assembled by securing the floor panels to the support members, securing the wall panels to the floor panels, and securing the roof panels to the wall panels and to adjacent roof panels. The roof panels may have rigid insulation. The roof panels may have tapered rigid insulation or the modular building may be constructed with the roof panels in a tilted position.

Abstract: An expansion anchor 10 comprising a bolt 12 having a head 14 and a threaded stem 16. The stem 16 extends from the head 14 about a generally longitudinal axis. The anchor 10 also comprises an expansion cone 20 having a threaded bore 22, the cone 20 being threadably receivable about the threaded stem 16. The anchor 10 further comprises an expansion sleeve 24 receivable about the stem 16, with the cone 20 being receivable within the sleeve 24. The cone 20 is configured to be drawn into the sleeve 24 upon rotation of the bolt 12 about the longitudinal axis relative to the cone 20, thereby causing the sleeve 24 to expand in a radial direction relative to the longitudinal axis to bring the sleeve 24 into anchoring engagement with a surface S of a hole H into which the anchor 10 is inserted. The outer surface 23 of the cone 20 has a cone abutment surface 26.

Abstract: This invention involves in one kind of Energy Integrative Building with Ecological Environmental Protection, which includes the overall structure of building, top of building, doors and windows, and guardrails, there is the concrete strengthened layer which is casted on the top of building; the fertile soil is transferred on the top of building, the moist soil dries fast under the sunlight, the fertile elements are increased, the harmful bacteria and parasite are killed in the soil, so as to keep away from the infringement to the soil caused by mouse, mosquito and housefly; solve the decreasing farmlands due to construction, make the abandoned and wasted farmlands become the qualified farmlands for growing crops; solve the loss of soil, water and fertile soil; the solar device takes the role of protection within the growing periods of crops, which can prevent crops from harm of climatic situations such as typhoon, hailstone and rainstorm; can plant crops around the year adjust and retain the urban weather and

Abstract: Systems are provided for use in balcony structures. The system includes a joist comprising an upper chord and a lower chord separated by a web. One end of the joist is supported by a supporting member and a cantilevered balcony extends generally perpendicularly from the supporting member. The cantilevered balcony comprises a cementitious balcony slab extending from a cementitious floor slab. The cementitious floor slab includes a backspan region extending from the top of the supporting member opposite the cementitious balcony slab. A portion of the joist in the backspan region comprises a decking supporting member coupled to the web. The joist in the backspan region supports decking using the decking supporting member; however, the joist beyond the backspan region supports decking above the upper chord. In this way, the cementitious floor slab in the backspan region is thicker than the cementitious floor slab beyond the backspan region.

Abstract: A precast composite flooring system utilizes girders and floor panels having steel lower structures placed in tension and concrete upper structures places in compression. Openings through a stem wall allow ducts, pipes, and conduits to be run therethrough. The system provides reduced weight over conventional precast or pour in place systems, allowing further reduction in the weight and size of other building components. The floor deck does not use tensioning strands, allowing openings to be formed at nearly any stage of construction and with reduced concern over cutting steel reinforcement. The floor panels and girders bolt together and bolt to a steel column frame, allowing for more efficient assembly.

Abstract: A modular concrete building is made of a plurality of precast concrete panels which may be assembled to provide a building. The panel sections include lower frame panels or support members, wall panels, floor panels, and roof panels. The building may be assembled by securing the floor panels to the support members, securing the wall panels to the floor panels, and securing the roof panels to the wall panels and to adjacent roof panels. The roof panels are made of precast concrete and include stiffening ribs.

Abstract: Systems are provided for use in balcony structures. The system includes a joist comprising an upper chord and a lower chord separated by a web. One end of the joist is supported by a supporting member and a cantilevered balcony extends generally perpendicularly from the supporting member. The cantilevered balcony comprises a cementitious balcony slab extending from a cementitious floor slab. The cementitious floor slab includes a backspan region extending from the top of the supporting member opposite the cementitious balcony slab. A portion of the joist in the backspan region comprises a decking supporting member coupled to the web between the upper chord and the lower chord. The joist in the backspan region supports decking using the decking supporting member; however, the joist beyond the backspan region supports decking above the upper chord. In this way, the cementitious floor slab in the backspan region is thicker than the cementitious floor slab beyond the backspan region.

Abstract: A series of spaced-apart light gauge cold formed steel studs underlie an elongated light gauge cold formed steel channel or box. A series of joist supports are connected to the channel and a series of joists, formed of a light gauge cold formed steel, are connected to the joist supports and extend outwardly from the box. Decking is supported on the joist. Concrete is poured into the channel to form a reinforced header or beam, and concrete is also poured onto the decking to form a concrete floor. Together, the concrete floor and header form a monolithic concrete structure that enables the joist to be misaligned with studs.

Abstract: An improved building technique includes setting at least one wall for a building into a final position, and then subsequently match-casting a foundation or floor for the building, the foundation/floor being in contact with the base of the wall and helping to secure the wall.

Abstract: A precast prestress raised access floor construction is provided which includes a precast prestress concrete slab, having an upper base floor surface and a lower surface, a plurality of raised access floor panel pedestal support members bearing directly upon the upper base floor surface, and a plurality of raised access floor panels connected to the support means whereby a void is formed between the floor panels and the upper base floor surface.

Abstract: A concrete building panel has a slab and a plurality of ribs and beams. A series of horizontal holes in the end ribs are spaced at a selected constant spacing such that adjacent panels may be fastened together through them. In one type of panel, the slab is separated from the ribs to provide an air gap. Connections between holes in two adjacent concrete wall panels are made by a hollow conduit having an abutment at either end to engage the concrete wall panels. Other connections between adjacent panels involve a stitch with legs which extend through holes in the beams. Other connections involve a space made by vertical channels of horizontally adjacent panels. A plate fitted into the space aligns the adjacent panels and may extend upwards to align upper panels. Load bearing horizontal holes through the ribs are reinforced with reinforcing bar in the concrete arranged in generally triangular shapes.

Abstract: The invention relates to a joining system for connecting two elements, for example a beam (10) and a pillar (11), comprising a receiving device (1), a box element (3) and a bridge element (2), where the box element comprises attachment devices for preferably angled reinforcing rods (4). The invention also relates to a box element (3), a bridge element (2) and a method for placing the box element (3) in a concrete element.

Abstract: A corner block has spaced-apart front and rear sections interconnected by two spaced-apart side sections that jointly define a through-cavity that extends through the block from a top face thereof to a bottom face. Upper protrusions are provided on the top face of the block, and lower protrusions are provided inside the cavity at the bottom of the block. The upper and lower protrusions are configured and arranged relative to one another so that when two corner blocks are stacked one atop another with one block rotated 90 degrees relative to the other, the upper protrusions of the lower block interlock with the lower protrusions of the upper block to interlock the two blocks. The corner blocks are constructed in two variants, a corner block A and a corner block B, which are mirror images or opposite hands of each other. The corner blocks A and B are alternately stacked upon one another to construct a 90-degree corner of a segmental retaining wall or other wall structure.

Abstract: A composite floor panel includes a frame assembly having a base plate, a plurality of first lateral supports secured to the base plate, and a plurality of second lateral supports secured to the base plate. The first lateral supports lie in a first plane and the second lateral supports lie in a second plane. The first plane and the second plane each intersect the base plate and the first plane is disposed at an angle relative to the second plane. The composite floor panel also includes a concrete portion coupled to and supported by the first lateral supports and the second lateral supports.

Abstract: A pre-formed structural concrete element for use in the formation of a composite concrete floor of a building or the like, the element comprising: a generally planar base portion having opposing faces; a series of generally parallel spaced apart formations extending from one said faces of the base portion each defining along with an adjacent formation a void space therebetween and wherein the formations terminate in a plateau and have at least a narrow portion and a wide portion between the plateau and the one said faces of the base portion.

Abstract: A method of constructing a building façade comprising, casting at least one plate member; coupling at least one load member to the plate member; aligning a first façade assembly levelly prior to attachment to the substrate; aligning a second and third façade assembly horizontally adjacent and vertically adjacent the first façade assembly, respectively, by interface with the first façade assembly, and repeating the steps of aligning additional façade assemblies to form a facade.

Abstract: A headed loop anchor (10) comprising a “U” shaped section having parallel spaced legs (11 and 12) and a looped adjoining section (13), the free ends (14 and 15) having heads (16 and 17). The headed loop anchor is formed by bending and then forging the head from the legs so the anchor is an integral unit. In use, the headed loop anchors are positioned in parallel spaced relation so that the looped sections (13) project from a slab so that a suitable connector may be used to hook over the loop sections (13) in order to connect adjacent concrete sections together.

Abstract: A moisture control system for a straw bale core wall having an air pathway from the foundation of the wall to its bond beam permitting air to be pumped into the wall at the foundation level and up through the core of the wall into a plenum space at the top of the wall and out through one or more vents into the atmosphere.

Abstract: A concrete floor assembly is disclosed including a subfloor element with a floor side and a ground/ceiling side, and a top casting layer. In at least one embodiment, the subfloor element includes a concrete portion on the floor side, which concrete portion has a bottom casting surface with a surface roughness. The top casting layer includes a casting composition, which includes a self-compacting concrete and a shrinkage reducing admixture. The top casting layer is cast on the floor side of the subfloor element so that at least a portion of the bottom casting surface is covered by the top casting layer, the bottom casting surface having such surface roughness that the top casting layer adheres to the bottom casting surface. A method of providing such a concrete floor assembly is also disclosed, as well as a floor assembly.