6 Terms
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Concrete
Referring to an artificial, stonelike material used for various structural purposes, that is made from the drying and hardening of cement.
Industry: Building materials
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Concrete
jitterbug
Building materials; Concrete
A grate tamper used to bring sand and cement grout to the surface of wet concrete during placement of slabs. May be motorized or hand operated.
jacking stress
Building materials; Concrete
In prestress concrete, the maximum stress occurring in a tendon during stressing.
jacking force
Building materials; Concrete
The temporary force exerted by the jacking device which introduces tension into the tendons.
initial stress
Building materials; Concrete
In prestressed concrete, the stresses occurring in the prestressed members before any losses occur.
initial set
Building materials; Concrete
A degree of stiffening of the cement and water mixture. This is a degree less than final set and is generally stated as an empirical value, indicating the time in hours and minutes required for a ...
impermeable
Building materials; Concrete
The ability of a material or product to reduce or eliminate gaseous transmissions through it's mass; measured as the rate of Water Vapor Transmission (WVT). Note: Not all materials that are ...
cement slurry
Building materials; Concrete
A thin, watery cement mixture for pumping or for use as a wash over a surface.
