A connector for securing reinforcing rod elements to an adjacent spaced formwork panel, the connector including: a compression resistant spacer element having a first end and a second end defining a depth there between; one or more securing flanges extending from said first end for securing the connector to a formwork panel, and reinforcing rod retention means extending from said second end.

A floor deck structure (1) including a profiled metallic sheet (2) including at least a first, a second and a third upper portion (7) separated by a first and a second longitudinal groove (3) comprising a base (5), a first lateral wall (13) linking the base (5) to one of the upper portions and a second lateral wall (14) linking the base (5) to an adjacent upper portion (7); a first and a second rebar truss (10) each extending longitudinally in and/or above, respectively, the first and second longitudinal groove (3) and a plurality of connectors (9a) fastening the first and the second rebar trusses (10) to the profiled metallic sheet (2).

In a bonding structure for bonding a bonding attachment, having an insertion hole formed to allow insertion of a rebar therein, to the rebar, an application liquid mixed with a granular fine powder is previously applied on the rebar or the inside of the insertion hole of the bonding attachment, and then the bonding attachment is bonded to the rebar inserted in the insertion hole. Thereby, the granular fine powder is disposed on the contact surfaces of the bonding attachment and the rebar inserted in the insertion hole of the bonding attachment, increasing the friction force to resist against the force to pull the inserted rebar out from the insertion hole.

In a bonding structure for bonding a bonding attachment, having an insertion hole formed to allow insertion of a rebar therein, to the rebar, an application liquid mixed with a granular fine powder is previously applied on the rebar or the inside of the insertion hole of the bonding attachment, and then the bonding attachment is bonded to the rebar inserted in the insertion hole. Thereby, the granular fine powder is disposed on the contact surfaces of the bonding attachment and the rebar inserted in the insertion hole of the bonding attachment, increasing the friction force to resist against the force to pull the inserted rebar out from the insertion hole.

Reinforcing panel having high durability, high strength, and high hardness is applied such that a concrete structure may be repaired to have excellent resistance to an external environment and to be structurally excellent. In comparison to existing bonding methods, a concrete structure and a reinforcing panel may be completely attached to each other as a whole using a repairing material with high fluidity as a cement-based material injected into a repair cross section. Part with microcracks is completely filled with repairing cement mortar injected at high pressure. Since reinforcing panel is precast-fabricated in a factory, embossing, intaglio, color, and the like may be easily added to an external surface of the reinforcing panel and an excellent exterior may be provided after repair due to an aesthetic cross section thereof The reinforcing panel fabricated in a factory is applied as to reduce labor costs and construction costs.

Stackable wall spacer adapted for automated distribution using a feeder device and adapted to support a reinforcement grid, where the wall spacer comprises a plurality of leg sections each having a lower foot adapted to be placed on a mold surface for the concrete, where a plurality of wall spacers can be stacked in each other with the feet of one wall spacer extending into corresponding voids of a subsequent wall spacer, where the side wall of a leg section is parallel with the side wall of a leg section of a subsequent wall spacer. The advantage of the invention is that the wall spacers can be stacked in a space saving manner in each other, which allows a cost-efficient storage and transportation of wall spacers. The invention further allows for wall spacers that can be distributed by using a hand-held or automatic feeder device. Further, a reinforcement grid can be supported by a wall spacer regardless of the position of the spacer.

Stackable wall spacer adapted for automated distribution using a feeder device and adapted to support a reinforcement grid, where the wall spacer comprises a plurality of leg sections each having a lower foot adapted to be placed on a mold surface for the concrete, where a plurality of wall spacers can be stacked in each other with the feet of one wall spacer extending into corresponding voids of a subsequent wall spacer, where the side wall of a leg section is parallel with the side wall of a leg section of a subsequent wall spacer. The advantage of the invention is that the wall spacers can be stacked in a space saving manner in each other, which allows a cost-efficient storage and transportation of wall spacers. The invention further allows for wall spacers that can be distributed by using a hand-held or automatic feeder device. Further, a reinforcement grid can be supported by a wall spacer regardless of the position of the spacer.

Centralizer for centering rebar within a bore hole comprises a first sleeve section, a second sleeve section and a radially protruding section. A referential central axis of the centralizer passes through the first sleeve section, the referential central axis being a straight line, and the centralizer configured to receive the rebar along the referential central axis. The second sleeve section is spaced from the first sleeve section in a direction along the referential central axis. The radially protruding section is directly or indirectly connected to the first sleeve section and the second sleeve section. The first sleeve section comprises a first threaded interior surface configured to engage a threaded outer surface of the rebar and to impede the ability of the rebar to slip through the first sleeve section along the referential central axis. The centralizer does not require a tie for attachment to rebar.

Centralizer for centering rebar within a bore hole comprises a first sleeve section, a second sleeve section and a radially protruding section. A referential central axis of the centralizer passes through the first sleeve section, the referential central axis being a straight line, and the centralizer configured to receive the rebar along the referential central axis. The second sleeve section is spaced from the first sleeve section in a direction along the referential central axis. The radially protruding section is directly or indirectly connected to the first sleeve section and the second sleeve section. The first sleeve section comprises a first threaded interior surface configured to engage a threaded outer surface of the rebar and to impede the ability of the rebar to slip through the first sleeve section along the referential central axis. The centralizer does not require a tie for attachment to rebar.

A timber-concrete composite floor or roof system connector that provides high slip modulus stiffness and resiliency through a combination of mechanical and adhesive connections to a timber substrate, ductile structural behavior under ultimate loading, and an integrated method for chair support of concrete slab reinforcing members during wet concrete placement.