Abstract: An expansion joint connects structural elements of a building structure to fill a space between the structural elements themselves. The expansion joint has a plate body and a deformable body flanked or adjacent to the plate body along the longitudinal direction. The deformable body includes two superimposed and structurally independent portions connected to each other in a removable way, or configured for a removable connection with one another.

Abstract: An insulating strip (3) connects profiles (2) of a composite profile (1) for doors, windows or façade elements. At least one of the profiles has a roll-in groove (6) and is composed of a first metal material. The insulating strip (3) includes a strip body (4) composed of an insulating material and extending in a longitudinal direction (z). A roll-in head (5) is formed at a longitudinal edge of the strip body (4). The roll-in head (5) has a cross-sectional shape in a plane (x-y) perpendicular to the longitudinal direction (z) suitable for insertion into the roll-in groove (6). A metal sheet (13) having surface variations (17; 18) covers at least a portion of a surface (10, 11, 12) of the roll-in head (5). At least a portion of the sheet (13) is composed of a second metal material having a tensile strength of 300 N/mm2 or more.

Abstract: An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

Abstract: An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

Abstract: A bendable cover assembly for an expansion joint gap in a tread and riser application includes an elongated resilient cover for bridging a gap between underlying structural members. A plurality of spaced-apart rigid plate members are encapsulated within, or otherwise are engaged with, the elongated cover of the cover assembly. Additional bendable plate members may be positioned on opposite lateral sides of the plurality of spaced-apart rigid plate members. The cover has a thickness and sufficient elasticity to elastically deform for establishing supporting contact between the marginal support areas of the cover and the underlying structural members. Fasteners may be engaged with the cover at spaced apart sites along at least one lateral side portion thereof for elastically anchoring the elongated resilient cover to at least one of the underlying structural members.

Abstract: An expansion joint system for bridging a gap that is located between spaced-apart structural members. The expansion joint system may be utilized, for example, in roadway, bridge and tunnel constructions where gaps are formed between spaced-apart, adjacent concrete sections. The expansion joint system includes flexible moment connections for connecting vehicle load bearing members to the support member. In certain embodiments, the expansion joint system includes flexible moment connections and friction springs. The expansion joint system may be utilized where it is desirable to absorb loads applied to the expansion joint systems, and to accommodate movements that occur in the vicinity of the expansion joint gap in response to temperature changes, seismic cycling and deflections caused by vehicular loads.

Abstract: A free movement, arris protection, construction joint has a pair of arris protection members formed complementarily from strips of sheet with a continuous trapezium wave form. A divider one of the members is typically 100 mm deep for a nominal 0.1 m deep slab. The other one is typically 50 mm deep. The members are of steel plate. The wave form is comprised of flanges extending in the length of the joint and of webs angled to the flanges and the length of the joint. The flanges are spaced on opposite sides of a mid-plane of the joint. The members are bolted together with flangible nylon bolts, with their top (in use) edges flush. Welded to the outer ones of the flanges are L strips having apertures in their flats extending from the flanges for anchoring the joint to its slabs.

Abstract: A system configured to anchor a cover plate over an interface formed between substantially coplanar substrates includes a sleeve capable of being anchored in a first substrate; a spring located in the sleeve; a post located in communication with the spring; and a fastener secured onto the post. A head of the post is located in the sleeve, and an end of the post opposite the head of the post extends out of the sleeve to receive the fastener. The fastener is secured onto the post over the cover plate located on the first substrate such that the cover plate extends over the interface formed between the first and second substrates when they are positioned to be substantially coplanar.

Abstract: Described is an expansion joint (1) for building works comprising: a first and a second fastening flap (2, 3) rigidly connectable to corresponding structural elements (4, 5) and elongated in a longitudinal direction; an elastic connector (7) connected to the fastening flaps (2, 3) and interposed there for filling a space (6) between the structural elements (4, 5), and for allowing a relative movement of them; at least one profile (8) hooked to one of the fastening flaps (2, 3) from the side opposite the elastic connector (7), the profile (8) forming a channel elongated in the longitudinal direction; at least one illuminating element (9) positioned inside the channel.

Abstract: Compressive force transmitting connection element for connecting a first cast structural component part to a second cast structural component part having an insulation body for thermal separation of the first and second cast structural component parts situated above and below the compressive force transmitting connection element. This insulation body being limited on the top and bottom by two support surfaces. At least one compression element penetrating the insulation body from the first to the second support surface. Transmitting transverse force elements have at least one transverse force transmitting element which continuously runs through the compressive force transmitting connection element in direction from the first support surface to the second support surface, the at least one compression element encloses the at least one transverse force transmitting element over at least part of the circumference thereof.

Abstract: Edging strips for concrete floors employ parallel strips as lost formwork secured to removable timber formwork using a nailing bracket that has a horizontal plate section 32 and a vertical plate section 35, the horizontal plate section slides underneath one of the strips as the strips separate due to concrete contraction and supports a filler by bridging under the filler, the horizontal plate section comprises an elongate section of the horizontal plate section having lobes 33 and 34 at each end. These lobes are welded to the underside of one of the strips 11 or 12 with the other strip located on top of the elongate section. The vertical plate is a fixing plate 35 with predrilled holes for nailing to the timber form, the elongate section having tapered corners opposite each lobe and the vertical plate extending in a plane located between the lobes.

Abstract: A leave-in-place forming system is for concrete slabs and pavements. It comprises a number of components that can include two or more of the following but is not limited to two or more of the following: a plate dowel for load transfer between adjacent concrete panels (joint stability), a divider plate (which could be sheet metal, plastic or other rigid material), and an assembly or molding to finish the concrete to, that armors the joint and/or provides a water-tight seal to the joint. The joint assembly could incorporate an integral setting assembly or bracket, or could be used with a re-usable setting bracket. The integral assembly or bracket is most suitable when it is desirable to place concrete to both sides of the joint assembly at the same time. The re-usable setting bracket is most suitable where concrete is placed to just one side of the assembly and it is desirable to re-use the setting assembly.

Abstract: Concrete casting elements for forming an expansion joint in concrete including: a pair of expansion joint members each having a gasket mounting formation to which a gasket may be mounted in operative interposition between the expansion joint members for sealing the joint; a flange extending from a remaining portion along one side of the expansion joint member and retainer mounting means formed onto or into said remaining portion for mounting one or more retainer elements to protrude from the opposite side of the expansion joint member from the flange; the flanges of each one of the expansion joint members being formed to engage one with the other; the flange of one joint member at least partly overlying the flange of the other to provide an expansion joint upper face and such that the remaining portions may be spaced from one another when the flanges are so engaged; the flange of the other expansion joint including a lip formed to be substantially coplanar with the expansion joint upper face; and the flanges

Abstract: A force transmitting connection element having an insulation body limited by two oppositely located support surfaces which are at a distance corresponding to a height H of the force transmitting connection. A first support surface faces a first cast structural component part and has a length L1 and a width B1. A second support surface limiting the insulation body faces a second cast structural component part and has a length L2 and a width B2. A longitudinal center axis runs through a center of the insulation body. A element penetrates the insulation body. An element for transmitting transverse force projects beyond the compressive force transmitting connection element in direction of the first cast structural component part and a ratio between transmissible compressive force and transmissible transverse force is between 1.5:1 and 15:1 and a distance LK is less than (B1+B2)/6.

Abstract: Force transmitting connection for connecting first and second cast structural component parts having an insulation body for thermal separation of the cast structural component parts limited by two support surfaces. The first support surface faces the first cast structural component part and the second support surface faces the second cast structural component part. A compression element penetrates the insulation body from the first to the second support surface. An element for transmitting transverse force has at least one transverse force transmitting element that runs through the compressive force transmitting connection element from the first to the second support surface. The at least one compression element is connected to the at least one transverse force transmitting element and at least one pressure distributing element is formed at one end face of the compression element.

Abstract: An expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one lo-cal or continuous dowel which is arranged to transfer loads perpendicular to the slab plane. The expansion joint reinforcement comprises an additional reinforcement comprising at least one clenching pin and to be arranged in the vicinity of the dowel in concrete, the additional reinforcement being arranged to adhere to the concrete above and below the dowel by means of a widening forming the clench point.

Abstract: The invention relates to an expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one local or continuous dowel arranged to transfer loads which are perpendicular to the slab plane. A shear reinforcement or a location for attaching the shear reinforcement has been arranged in advance in the expansion joint reinforcement.

Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.

Abstract: An expansion joint bracket retains an expansion joint board in a concrete installation. The expansion joint bracket may include a base member having multiple nail holes for securing the bracket to the earth (or sand or gravel put down prior to pouring concrete there upon). First and second board support members may run perpendicular to the base and parallel to each other to hold the expansion joint board in place. Gussets, typically triangular shaped gussets, extend from the board support members to the base member. The expansion joint brackets may be disposed every 12-24 inches on the expansion joint board and concrete may be poured over the expansion joint brackets, resulting in a quick and simple concrete installation.

Abstract: According to one non-limiting embodiment of the present invention, a continuous pour concrete slip dowel is disclosed configured for use across a joint between adjacent concrete slabs. The continuous pour concrete slip dowel of the invention includes a slip sleeve configured to be positioned within a first concrete slab, and a main dowel rod having i) a first rod end portion configured to be received within the slip sleeve, ii) a second opposed rod end configured to be received within a second concrete slab which is adjacent the first slab and spaced from the first slab by a intervening joint, and iii) an intermediate coupling rod portion connecting the first rod end with the second rod end, wherein the coupling rod portion defines an offset therein whereby the coupling rod portion is configured to extend around the joint.

Abstract: Force transmitting connection for connecting first and second cast structural component parts having an insulation body for thermal separation of the cast structural component parts limited by two support surfaces. The first support surface faces the first cast structural component part and the second support surface faces the second cast structural component part. A compression element penetrates the insulation body from the first to the second support surface. An element for transmitting transverse force has at least one transverse force transmitting element that runs through the compressive force transmitting connection element from the first to the second support surface. The at least one compression element is connected to the at least one transverse force transmitting element and at least one pressure distributing element is formed at one end face of the compression element.

Abstract: The objective of this invention is to provide ease of application for steel armored joints used in industrial concrete floor construction. It provides one step simple installation. Eliminates thermal transfer in low temperature environment to a higher temperature environment through the concrete slab. Provides simple elevation adjustment. Provides a substrate for joint filler compression. Eliminates the need for wood forms and field welding that produces waste. Elevation adjustment and the ease thereof are achieved by vertical slots cut in the plastic upright. The neoprene bolts are to be tightened when the steel is at the desired elevation. Two part armored joints separate as the concrete contracts during the curing process. Then the joint filler product is applied.

Abstract: A compliant trim for use between concrete slabs is disclosed, intended for the replacement of wood commonly used for formwork to divide concrete slabs. The compliant trim is easily inserted into the space cleared of wood, will not migrate deeper into the space, and is therefore independent of the depth of the cleared space beyond a minimum needed for installation. Additionally, the compliant trim lies flush or below the surface of slabs which have edge radii, making it relatively unaffected by foot traffic, vehicles, and the like. The trim may be extruded, may be manufactured from recycled materials, and remains compliant to allow for joint expansion and contraction.

Abstract: A device equips an expansion joint between slabs in building constructions, in particular concrete slabs. According to a first embodiment, the device is made up of two profiles (3,4) that fit together in such a way that the elements passing through the joint between the slabs are discontinuous and have a bracket shape anchored by plate dowel anchors. According to a second embodiment, the device has a single profile, the lower part of which is bent alternately in one slab part and the other on each side of the joint.

Abstract: A metal joint for concrete slabs including means of separating the slabs and means allowing the horizontal movement of slabs relative to each other while avoiding vertical movement between the edges of the slabs, the metal joint comprising a first part incorporated in a first slab, comprising a vertical web with an upper edge and provided with a series of tenons which extend horizontally towards the exterior of the slab and a second part incorporated in a second slab comprising in its upper section a web with an upper edge and a series of mortise elements which extend towards the interior of the slab and are arranged opposite the tenons so that they can engage with each other, wherein the upper edges of the webs terminate at the top by an upper sharp edge strengthened by a cold-rolled fold so as to form a right angle on the outer side of the slab and a sharp edge with an acute angle in contact with the concrete of the slab thus forming a smooth upper surface and a sharp edge of the joint of the adjacent s

Abstract: A sealing member for sealing over a structural joint or compound expansion joint. The sealing member has an elastomeric portion to overlie the lines of the joint and an adhesive receiving region to the sides of the elastomeric portion. The adhesive receiving region is adapted to be adhered to material adjacent to the structural joint. The elastomeric portion extends along each line of the structural joint in use to allow relative movement along each joint to be absorbed by the elastomeric portion.

Abstract: As ambient conditions change around a truss structure, such as a wooden truss in an attic, webs of the truss are affected by changes of moisture and temperature in the air. As the end-grain of the webs expand and contract, a contraction and expansion management (CEM) joint minimizes unwanted expansion and contraction in the truss chord. An elastic layer such as an elastomer in the CEM joint absorbs expansion while plates around the CEM joint maintain rigidity of the chord, keeping it secure to the walls. As the moisture and temperature in the attic decrease, the end-grain of the truss returns to its original state.

Abstract: A joint device is installed between adjacent components during construction to provide a proper transition between the components. The joint device has a generally L-shaped configuration with a first leg of the device that may be mounted to the outer face of the inner wall of a cavity wall construction and in the cavity between the spaced walls. The second leg projects generally perpendicularly from the first leg and from the inner wall toward the outer wall adjacent the bricks at which the movement joint is located. The second leg of the joint includes a series of segments in which a terminal end portion of the second leg is joined to a remainder thereof by frangible connections or perforated joints. After the joint device is installed on the inner wall and the outer wall is constructed, the terminal end portion of the second leg is removed by being torn along the appropriate frangible joint depending upon the spacing between the components.

Abstract: An expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab the expansion joint reinforcement comprising at least one lo-cal or continuous dowel which is arranged to transfer loads perpendicular to the slab plane. The expansion joint reinforcement comprises an additional reinforcement comprising at least one clenching pin and to be arranged in the vicinity of the dowel in concrete, the additional reinforcement being arranged to adhere to the concrete above and below the dowel by means of a widening forming the clench point.

Abstract: An expansion joint has an elongated flat sheet of flexible and resilient polymeric material. The flat sheet has having a width and a length; upper and lower surfaces; and first and second edges. The sheet has selvage edges and a central gland. The selvage edges have a pair of parallel elongate first and second scrims. The scrims may be formed or embedded on each of the opposite surfaces along the length of the sheet. The rough strips on each surface bracket the elongated strip of bare surface of the gland. The sheet has an array of apertures located in one of the selvage edges. An additional array of apertures may be formed in the opposite selvage edge. The apertures pass through, but are not limited to passing through, the sheet and the strips.

Abstract: A crack inducer controls propagation of cracks in set concrete containing reinforcing bars. The crack inducer has an elongated, rigid core that is relatively narrow in a direction that is parallel to outer surfaces of the concrete. The core has a core width in a first plane that intersects the outer surfaces of the volume, that is at least 20% of the concrete volume width so that a crack in the volume of concrete is induced to propagate from the core and along the first plane. A plurality of spaced cross-plates are connected to the core and a water-stop may be included around part of the core.

Abstract: The profile-rail system (1) serves for bridging expansion joints. It is held by means of undercut tongue and groove profilings (3, 4) such that it can be held in a click-in arrangement against flooring elements. In order to obtain a width adjustment and an adjustment to movements of the floor covering, the profile-rail system (1) has at least two telescopable profiled rails (5, 6). These profiled rails (5, 6) can be held against the flooring elements (2) exclusively on the end face.

Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.

Abstract: A flexible control joint for use in plastering and stucco applications. Various embodiments of the flexible control joint may be used to form screed walls for different thicknesses of plaster materials applied to adjoining walls or other structures. The walls or other structures may be of similar or dissimilar constructions. Various embodiments of the control joint may be used to form corner arrangements or T-arrangements to achieve desired design effects.

Abstract: An elongated joint seal for sealing a gap between two surfaces comprising a trunk and at least two resilient members extending one to each side of the trunk. The fingers in use contacting the surfaces of the gap, the trunk being substantially rigid to enable insertion of the seal into the gap.

Abstract: A load-transfer device for a structure comprises a top member, a bottom member and at least one web member. The top member comprises a bottom surface adapted to receive a top surface of the structure. The bottom member comprises a top surface adapted to receive a bottom surface of the structure. Each web member comprises at least one aperture extending through the web member between the bottom surface of the top member and the top surface of the bottom member. Each aperture is capable of receiving a bolt member that is capable of fastening at least one of the top member, the bottom member or combinations thereof to the web member.

Abstract: A shear brace assembly is provided which laterally braces wall lines within a structure, such as a house or other residential construction, while also providing vertical and out-of-plane load carrying capacity. The assembly consists of one or more wood-based panel(s) which are rigidly connected to concrete, masonry or wood support material directly below or above the shear brace assembly bearing surface. The term “wood-based” should be interpreted to mean that the panel may be constructed from a natural wood, or partially or wholly from an engineered wood, such as Timberstrand®, Parallam®, or the like. Ductile anchorage assemblies are used below, and in some applications, above the individual panels.

Abstract: A system and method are provided for forming expansion joints within artificial ground cover. An elongated expansion joint support is coupled with a length of expansion joint material. A lower end portion of the expansion joint support is shaped to engage a ground surface. The two structures may be coupled with one another in different positions to vary the resulting expansion joint height. The lower end portion of the expansion joint support may be shaped to have a ground engagement wall and to receive ground engagement spikes. No component parts need be removed from the system after the application of artificial ground cover adjacent thereto, thus permitting simultaneous application of ground cover on both sides of the expansion joint.

Abstract: A device equips an expansion joint between slabs in building constructions, in particular concrete slabs. According to a first embodiment, the device is made up of two profiles (3,4) that fit together in such a way that the elements passing through the joint between the slabs are discontinuous and have a bracket shape anchored by plate dowel anchors. According to a second embodiment, the device has a single profile, the lower part of which is bent alternately in one slab part and the other on each side of the joint.

Abstract: A multi-seal waterproof expansion joint for roadways includes an L-shaped load-bearing member mounted to each end of adjacent roadway sections. The lower surface of the horizontal leg of each load-bearing member has a shaped end to receive an insert to provide a retention cavity accessible by an elongated groove. A primary seal has opposite sides captured in the cavities. Vertical leg of a support member is mounted to each of the load-bearing members. Horizontal legs of the support members are spaced from the horizontal leg of its respective load-bearing member to provide a pair of spaced chambers. A secondary seal has opposite sides captured in the chambers. Movement of the roadway sections due to temperature changes compresses and stretches the primary seal while the sides of the secondary seal slide in their respective chamber. The primary seal can be inserted and/or removed from above or below the roadway.

Abstract: An expansion gasket 10 positionable between similar or dissimilar materials having an exterior exposure to the elements. In the preferred embodiment, the expansion gasket of the present invention 10 provides means to seal a space occurring between mated articles such as walls and windows, doors, electrical outlets, lighting fixtures, fans, ventilation grille, etc. The gasket 10 may have one or two bases 60, 62 and various shapes including 52, 54.

Abstract: A device for making a connection between concrete slabs, the device having two modules derived from sheets, each module having a number of flat elements which form projections, each module further having elements in the form of a right angle, having a flat part integral with projection, and a raised part, and longitudinal members between the raised parts, and wherein the modules are assembled in such a way that the raised parts and longitudinal members of the two modules are facing each other along the two sides of a center plane, and that the projections extend on both sides of the center plane, so as to form meshing projections which pass from one side of the joint to the other.

Abstract: A cover assembly includes an elongated resilient cover for bridging a gap between horizontal structural members. The upper face surface of the resilient cover has spaced apart ribs extending transverse to the flow of traffic and an opposite surface formed with load bearing edge portions engaged for support with opposite lateral margins to the expansion joint. Between the load bearing edge portions the cover supports at least one rigid metal plate. In one embodiment, a central plate bridges the gap between two structural members and the at least two additional plates serve to urge the opposite lateral edges of the cover into supporting engagement with structural members. The cover has a thickness and sufficient elasticity to elastically deform for establishing supporting contact between the marginal support areas and underlying horizontal structural members.

Abstract: A plastic lined concrete tank includes a floor, an upright wall having a lower edge adjacent the floor, a plastic wall lining on an interior surface of the wall, and a plastic waterstop structure inhibiting penetration of water between said floor and said lower edge of the wall. The waterstop includes an anchor embedded in the floor and an upper flange which overlaps the lining. A sealed joint is provided between the upper edge of the flange and the lining. The flange and the lining are fused together to form a supporting structure at a position lower on the wall than the sealed joint, whereby outward bending of the flange away from the wall lining at said joint during shifting of the wall relative to the floor is inhibited and outward bending of the flange away from the wall lining at a location remote from said joint during shifting of the wall relative to the floor is promoted. The tank also includes a plastic floor liner and a floor liner attachment member fused to said anchor.

Abstract: A bridging device for joint gaps (1) between building parts (2, 3) including bridge parts, with an expansion joint construction (4) bridging a joint gap (1). The expansion joint construction (4) permits position changes of the building parts (2, 3) with respect to one another. A safety construction (12, 15) is provided which permits a position change of the building parts (2, 3) with respect to one another without a separation destroying the function of the bridging device. The safety construction (12, 15) comprises at least two mutually firmly connected elements which upon exceeding of a defined threshold load are separated and movable with respect to one another. One element is firmly arranged on one of the building parts (2, 3) and the other element is part of the expansion joint construction (4) or receives the latter. The two connected element are defined by a rail (24)and a slide (25).

Abstract: An improved joint edge assembly, of the type used in the construction of concrete slabs, is disclosed. The assembly comprises a longitudinal joint rail, preferably of steel, which is supported off the ground by temporary formwork. The joint rail is secured to the formwork by mounting brackets. The joint rail comprises first and second joint edge members that are connected to each other by connectors with self-release elements. A plurality of studs extends downward and outward from each of the joint edge members into the concrete slabs provide a positive mechanical connection between the slab and the joint rail. As the concrete shrinks during hardening, the self-release elements of the connectors allow the joint to freely open. The joint edge assembly thus provides a self-releasing expandable joint between adjacent slab sections, and protects the edges of the adjacent slab sections from damage. A dowel aligner may also be integrated into the assembly, to allow proper positioning of dowels within the slab.

Abstract: The present invention is related to a device intended to establish a connection between two adjacent slabs, preferably concrete slabs, by equipping the expansion joint between said slabs, wherein said device is constituted by an assembly of two modules derived from sheets, each of the modules comprising:

Abstract: An expansion joint cover (10) broadly comprises a cover plate (38) to cover an expansion joint (12) between a first and second surface (14,16), an anchor assembly (40) to secure the plate (38) to the first surface (14), an insert (46) to protect the second surface (16), and one or more resilient bushings (48) to isolate the plate (38) from the anchor assembly (40). Under adverse conditions, such as during seismic events, the surfaces (14,16) may move significantly with respect to one another, thereby causing the plate (38) to slide over the second surface (16) and the insert (46) and deform the bushings (48). Thus, the flexibility of the plate (38), the durability of the insert (46), and the resilience of the bushings (48) all cooperate to allow the cover (10) to minimize stresses otherwise transferred to the anchor assembly (40).

Abstract: A concrete construction includes a formed concrete slab having at least one control joint formed into a surface of the slab to control the location of stress cracks as the slab cures. A control joint protective strip is removably received in the control joint and has a head portion which overlays upper edges of the control joint. The control joint protective strip further includes a stem portion which is configured to engage frictionally interior side walls of the control joint when the stem portion is inserted into the control joint.

Abstract: The present invention relates to a concrete construction that comprises a concrete slab and a ductile strip adjacent the slab. The ductile strip comprises an engineered cementitious composite of cementitious material and reinforcing fibers with the ductile strip being directly bonded to the slab. The present invention also relates to a method of making or repairing a concrete construction, the method comprises providing a ductile strip adjacent a concrete slab, wherein the ductile strip is made of an engineered cementitious composite comprising cementitious material and hydrophilic and/or hydrophobic reinforcing fibers. The present invention further relates to a roadbed or building floors suitable for vehicular traffic, the roadbed comprises a plurality of slabs and ductile strips comprising an engineered cementitious composite of cementitious material and reinforcing fibers.