1.1 This specification covers aggregate for use in grout for masonry.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.The following precautionary cavet per This specification covers aggregates used for masonry grout. Aggregates should consist of either natural or manufactured sand, used alone or in combination with course aggregates. The course aggregates should be made up of crushed stone, gravel, or pro