For builders, contractors & subs
Before the Pour
Most of our clients prefer a five-sack mix (3500 psi). Do not use sprayed or dusted on surface curing compounds.
Limit the use of fly ash if possible.
IMPORTANT: Make sure your concrete subcontractor has enough help to keep ahead of the pour.
To achieve a hard, slick, marble-like finish, power-trowel the surface. Some people prefer to burn it, depending upon on how dark the client wants the floor.
For sandstone – like finish on exteriors, pool decking, porches, sidewalks etc., use a broom finish.
Concrete is a porous and susceptible to discoloration. DO NOT WRITE ON THE SLAB WITH ANYTHING OTHER THAN A PENCIL.
Press board, and other forms of lumber, as well as items such as insulation and plastic will modify the moisture content of the concrete, creating a shift in color. Resins from the wood will also stain.
Verbally inform everyone that the floor will be stained, and remind them frequently. Posting signs is not enough.
Do not walk on the slab before the surface is completely dry.