Utilization of Coir Fibre Ash (CFA) in Cement Stabilized Peat

Abstract Peat is a soil that has high compressibility property beside having low bearing capacity. Due to these problems, the peat not suitable for construction purposes. Coconut waste an example of agricultural waste. In context environmental sustainability, use coir in geotechnical applications desirable. This research was conducted study stabilization by using Coir Fibre Ash (CFA) partially replacing Ordinary Portland Cement (OPC) improve physical and characteristics. Geotechnical laboratory experiments involved this are moisture contents, organic fiber content, Atterberg limits, specific gravity, Unconfined Compression Strength Test (UCS), Scanning Electron Microscope (SEM) Energy Dispersive X-Ray (EDX). study, CFA as stabilizer were used at mixture ratio 5, 10, 15 20% OPC replacement. Based on UCS test carried out, it found optimum strength each showed decrement pattern if compared cement stabilized (PC). The results SEM shows structure untreated becomes denser after stabilized. due cementing process. EDX carbon content decreases while calcium increases process executed. Therefore, be pozzolan material can reach up 200kPa