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In shipbuilding, a strongback, known as a waler is oriented lengthwise along a ship to brace across several frames to keep the frames square and plumb. [1] In formwork strongbacks (typically vertical) reinforce typically horizontal walers to provide additional support against hydrostatic pressure during concrete pours. [2]
A wale (or "waler") is a horizontal supporting member of a concrete forming system, vertically reinforced by a "strongback". A wale is also a horizontal member of a geotechnical tieback wall, which transmits the force from the tieback to the beams. [citation needed] [clarification needed]
Strongback (girder), a beam or girder which acts as a secondary support member to existing structure Strongback, the band formed by two former members of Palladium (British band) in 2009 Strongback, any one of at least three Caribbean herbs, Morinda royoc , Desmodium abscendens , and Cuphea parsonsia
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.
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.
Logo of Eurocode 2 An example of a concrete structure. In the Eurocode series of European standards (EN) related to construction, Eurocode 2: Design of concrete structures (abbreviated EN 1992 or, informally, EC 2) specifies technical rules for the design of concrete, reinforced concrete and prestressed concrete structures, using the limit state design philosophy.
The initiation time is related to the rate at which carbonation propagates in the concrete cover thickness.Once that carbonation reaches the steel surface, altering the local pH value of the environment, the protective thin film of oxides on the steel surface becomes instable, and corrosion initiates involving an extended portion of the steel surface.
Self-consolidating concrete or self-compacting concrete (SCC) [1] is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement (without external compaction), and thereafter until the concrete sets).