Performance of Workability and Compressive Strength on Self-Compacting Geopolymer Concrete Based On High-Calcium Fly Ash With Addictive Admixture

Geopolymer concrete has been developed as a replacement for conventional with other pozzolan materials, which have high silicate alumina content. Fly ash is material that contains of 22%. The content Al and Si increases the compressive strength concrete. High-calcium fly abundantly found in Indonesia. However, it not widely used industry or research, this due to fast hardening time Therefore, potential be developed. High-quality low cement water factor causes workability Self-compacting geopolymer (SCGC) high-quality innovation workability. Concrete produced by using gravel, sand, ash, alkaline activator, materials. This study 14 Molar levels NaOH. variations were 0%, 3%, 5%, 7% superplasticizers (SP) made from polycarboxylate. dry mixing method overcome setting on results show can achieved 645mm, 41.7 Mpa