Unit 9 - Introduction to Masonry questions with correct answers

admixture CORRECT ANSWER A chemical or mineral other than water, cement, or aggregate added to mortar immediately before or during mixing to change its setting time or curing time, to reduce water, or to change the overall properties of the mortar. aggregate CORRECT ANSWER Materials such as crushed stone or gravel used as a filler in concrete and concrete block. adobe CORRECT ANSWER Sun-dried, molded clay brick. alkaline CORRECT ANSWER Bitter, slippery, or caustic American Society for Testing and Materials (ASTM) International CORRECT ANSWER The publisher of masonry standards. ashlar CORRECT ANSWER A square or rectangular cut stone masonry unit; or, a flat-faced surface having sawed or dressed bed and joint surfaces. butter CORRECT ANSWER Apply mortar to the end of a masonry unit. capital CORRECT ANSWER the top part of an architectural column concrete masonry unit (CMU) CORRECT ANSWER a hollow or solid block made from Portland cement and aggregates.