What it is
It is an air entraining agent which conforms to BS 5075: 1982 part 2, ASTM C 260 and with the department of transport specification for highway works. Its main purpose is to control the air entrainment in concrete mix which makes it durable & helps protection against frost damages & deicing salts. It is useful in reducing the density of lightweight blocks, without impairing strength, so that block meets thermal insulation properties.