The use of coarse aggregate from fly ash and its effect on the mechanical properties of concrete

The amount of fly ash waste is increasing, causing environmental and storage problems. One solution to utilize the as an artificial aggregate. This research focuses on getting right formula for mixing ash, cement, superplasticizer (SP). tests carried out were compressive strength at 3, 14, 28, 56 days. results showed that best composition with a ratio cement: 1:4 added 1.2% by weight mixture resulted in 79 MPa days age.