1.1 This specification covers fluidifier for grout used for preplaced-aggregate (PA) concrete. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purp This specification covers fluidifier for grout used for preplaced-aggregate (PA) concrete. Grout ingredients shall conform to the specified requirements for Portland cement, pozzolan, and fine aggregate composition. The fluidifier, tested in grout shal