Donate the graduation gown to a local thrift store or vintage clothing store located near a campus, where students shop for gently worn clothing and accessories.
It is the aggregate most of which is retained on 4.75 mm IS sieve and contains only so much finer material as is permitted by specification. According to source, coarse aggregate may be described as: 1  Uncrushed Gravel or Stone â it results from natural disintegration of rock. 2  Crushed Gravel or Stone â it results from crushing of gravel or hard stone. 3  Partially Crushed Gravel or Stone â it is a product of the blending of the above two aggregate.
The maximum size of coarse aggregate that can be used in a mix depends on the size, shape, and reinforcing of a member, based on these not-to-exceed guidelines (see Photos 5 and 6): 3/4 of the clear spacing between rebar or between rebar and forms (cover distance). 1/3 the depth of the slab.ut a closer look reveals the major role and influence aggregate plays in the properties of both fresh and hardened concrete. Changes in gradation, maximum size, unit weight, and moisture content can all alter the character and performance of your concrete mix.