Reducing the Waiting-On-Cement Time of Geopolymer Well Cement using Calcium Chloride (CaCl2) as the Accelerator: Analysis of the Compressive Strength and Acoustic Impedance for Well Logging

Geopolymer cement (GPC) is an aluminosilicate-based binder that cost-effective and eco-friendly, with high compressive strength resistance to acid attack. It can prevent degradation when exposed carbon dioxide by virtue of the low calcium content aluminosilicate source. The effect concentration chloride (CaCl2) as accelerator on acoustic impedance GPC for well cement, while pressure temperatures, presented. Fly ash from Tanjung Bin power plant, which categorized Class F fly according ASTM C618-19, was selected source samples. Sodium hydroxide sodium silicate were employed activate geopolymerization reaction aluminosilicate. Five samples a density 15 ppg prepared concentrations CaCl2 varied 1% 4% weight cement. Findings revealed addition optimum curing conditions 100 °C 3000 psi 48 h, resulted in highest product. Results also indicate contain have smaller range compared ordinary Portland