Answer to Question #300892 in Civil and Environmental Engineering for Glady_7

Question

The following laboratory tests are performed on aggregate samples:

a) Specific gravity and absorption

b) Soundness

c) Sieve analysis test

What is the significance and use of each of these tests?

Answer 1

a)Specific gravity test of aggregates is done to measure the strength or quality of the material while water absorption test determines the water holding capacity of the coarse and fine aggregates. The main objective of these test is to, To measure the strength or quality of the material.

b)Soundness is the percentage loss of material from an aggregate blend during the sodium or magnesium sulfate soundness test. This test, which is specified in ASTM C88 and AASHTO T104, estimates the resistance of aggregate to in-service weathering. It can be performed on both coarse and fine aggregate.

c)A sieve analysis test is an analytical technique used to determine the particle size distribution of a granular material with macroscopic granular sizes. The sieve analysis technique involves several layers of sieves with different grades of sieve opening sizes.