Experiments were conducted on the physical properties of lightweight aggregates using discarded asbestos and sludge, and on the properties of concrete using these aggregates. I got the following results. (1) The density of aggregate A, a was approximately 0.9, the 24-hour water absorption rate was approximately 17%, and the BS10% crushing value was approximately 40 kN. (2) Concrete using aggregate A had a gradual increase in compressive strength as the cement-water ratio increased and the age of the material increased. (3) Concrete using Aggregate A exceeded the demolding strength specified in JASS14.
