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A concrete spacer with a plastic clip in use Concrete spacers in a precast element Diaphragm wall block on rebar for a Diaphragm wall. A rebar spacer is a short, rod-like device used to secure reinforcing steel bars, or rebar, within cast assemblies for reinforced concrete structures. The rebar spacers are fixed before the concrete is poured ...
Backer rod, also called backer material or back-up rod, is a flexible foam product used behind caulking to increase elasticity, reduce consumption, force the caulking into contact with the sides of the joint creating a better bond, determine the thickness of the caulking, and define the cross-section hour-glass shape of the caulk. The backer ...
A double-tee retaining wall Warehouse/office building with double tee wall panels. Double tees have been used in vertical load-bearing members such as exterior walls, [3] and retaining walls. [13] When using load-bearing double tee wall panels, it can significantly reduce construction time as a large area of walls can be covered in a short ...
Rebar (short for reinforcement bar or reinforcing bar), known when massed as reinforcing steel or steel reinforcement, [1] is a tension device added to concrete to form reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength.
While the current literature is very poor, some studies have been done on analysis of anchor plates and tie-rods, for example one study dealing with concrete panels, which, although a thin veneer, may also need anchor plates to help stabilize the wall. [9] The pressure that an anchor plate provides is constantly stiff.
Steel failure: the rod reaches the yielding capacity then rupture occurs after development of large deformations. Concrete edge: a semi-conical fracture surface develops originating from the point of bearing up to the free surface. This type of failure occurs, for an anchor in the proximity of the edge of the concrete member.
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Grouted tiebacks can be constructed as steel rods drilled through a concrete wall out into the soil or bedrock on the other side. Grout is then pumped under pressure into the tieback anchor holes to increase soil resistance and thereby prevent tiebacks from pulling out, reducing the risk for wall destabilization.