Aggregate 01 : (1) The inert material (sand, stone, etc) in concrete or plaster. See also: Concrete aggregates. (2) A collection or total. (3) To aggregate is to collect or add together
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}