Research on using of sea sand and fly ash to manufacture the geopolymer concrete

Abstract

    Using sea sand to replace natural sand, combining Fly ash mineral additive with alkaline-activated solution and water-reducing superplasticizer to manufacture the Geopolymer concrete. Geopolymer concrete designed with alkaline-activated solution and mineral additive ratios from 0.35 to 0.65. The results showed that, when using sea sand is considered for making Geopolymer concrete by completely replacing natural sand, the compressive strength decreased from 5 to 14% for the corresponding grades of concrete, concrete with waterproof grade reach from W12 to W14.