The following points should be clearly understood and agreed to by all parties, including: ready mixed supplier, finisher, home builder and owner.
- Ready Mixed Concrete Association (RMCA) recommends 4,000 psi, air entrained concrete for outside paving. Slump (stiffness of the mix) may exceed 3″ (three inches) only if water reducers are used and may exceed 5″ (five inches) only if high-range water reducers are used.
UNDERSTAND WATER TO CEMENT RATIO
- Do not add excessive water at the jobsite. One water addition may be made at jobsite provided it does not exceed the approved mix design.