NCHRP - National Cooperative Highway Research Program Concrete structures, etc, D.O.T.

Neat Cement Grout – Grout/Concrete consisting of portland cement and water. Grout is not Concrete

No-Slump Concrete - Concrete with a slump of 6 mm or less. See also Zero-slump Concrete

NRMCA - National Ready Mixed Concrete Association for the Concrete Industry