THE EFFECT OF SUBSTITUTING FLY ASH WITH SIMPING’S SEA SHELL POWDER IN THE PRODUCTION OF GEOPOLYMER CONCRETE (USING 12M NaOH SOLUTION)
DOI:
https://doi.org/10.26740/rekats.v14n02.p.%20Keywords:
Geopolymer, Simping Shell Powder, Fly AshAbstract
The rapid development of infrastructure in Indonesia has led to a significant increase in the use of concrete as a primary construction material. Concrete is composed of fine aggregate, coarse aggregate, cement, and water, with optional additives to improve its properties. However, the production of cement has a detrimental environmental impact, as each ton of cement produced emits approximately one ton of carbon dioxide (CO₂) into the atmosphere. To address this issue, this study aims to develop an environmentally friendly alternative in the form of geopolymer concrete by partially substituting fly ash with simping seashell powder. The objective is to enhance the mechanical and structural properties of the concrete. The results indicate that substituting 15% of fly ash with simping seashell powder improves compressive strength and reduces porosity, thereby demonstrating the potential of seashell powder as a sustainable material in geopolymer concrete production.
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References
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