Reinforced Concrete
Rebar reinforced slab.
Typical concrete mixes have high resistance to compressive stresses (about 4,000 psi ); however, any appreciable tension (e.g. due to bending) will break the microscopic rigid lattice resulting in cracking and separation of the concrete. Reinforced concrete solves these problems by adding either metal reinforcing bars (rebar), glass fiber, or plastic fiber to carry tensile loads. In industrialised countries, nearly all concrete used in construction is reinforced. Much of the focus on reinforcing concrete is placed on floor systems.
Look to Global Village Construction for the expertise to design and implient the concrete reinforcement technology to meet your projects needs.Rex Bothell - GVC
More than footings and foundations.
Cast-in-place concrete wall.
Reinforced concrete can encompass many types of structures and components, including slabs, walls, beams, columns, foundations, frames and more. Reinforced concrete can be classified as "precast" and "cast in-place" concrete. To the right is a cast-in place concrete wall by Global Village Construction. In commerical constuction uniform pre-made or "precast" walls segments are often deliverd to the construction site and lifted into place.
Prestressed concrete is a method for overcoming the concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that offsets the tensile stress that the concrete compression member would otherwise experience due to a bending load.
Post-tensioning is a form of prestressing. Prestressing simply means that the steel is stressed (pulled or tensioned) before the concrete has to support the service loads. Most precast, prestressed concrete is actually pre-tensioned—the steel is pulled before the concrete is poured. Post-tensioned concrete means that the concrete is poured and then the tension is applied—but it is still stressed before the loads are applied so it is still prestressed.
Fiber reinforced concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibers that are uniformly distributed and randomly oriented. Fibers include steel fibers, glass fibers, synthetic fibers and natural fibers.