Improvement of geotechnical properties of clayey soil with saw dust ash stabilization

Khaizal Jamaluddin,Reza Pahlevi Munirwan,A Rahman,I Rusydy,E Mas,E Meilianda,A Opdyke,A Suppasri,H.A Haridhi,Muksin Muksin,Y Idris,T Musa

doi:10.1051/e3sconf/202234001009

Abstract

Rapid urbanization and construction are driving up the consumption of cement and aggregate used in building construction. However, the manufacture of cement and concrete boosts carbon dioxide emissions and depletes the supply of natural aggregates. As a result, alternative materials for building construction are required. A replacement material, saw dust ash (SDA), is obtained from woodfired power stations, pulp, paper mills, and other wood-burning factories. However, the SDA manufacturing sector necessitates enormous tracts of land in rural locations. As a result, some wood waste is sprinkled throughout the open land, while others are burned in incinerators, contributing to air pollution, a significant environmental issue. The purpose of this study is to provide a brief overview of the practical usage of SDA as a substitute material in the building sector, especially for soil stabilization. The article provides an overview of SDA use in the construction sector and examines development trends such as strength and durability. The findings indicate that implementing SDA into soi the soil stabilization sector benefits both sustainability and zero-waste technology. Environmental concerns about using SDA are also discussed, as are methods for minimizing the dangerous influence on the surrounding environment for future disaster risk reduction due to soil failure.

Highlights

The shortage of good quality soil suitable for construction and the recent emphasis on environmentally friendly mitigation strategies have prompted geotechnical engineering to explore and perfect systems for reusing excavated soils [1] and [2]
While hydraulic conductivity increased overall when test specimens were penetrated with municipal solid waste (MSW) leachate, it dropped for samples treated for 4% saw dust ash (SDA) but improved for all other treated samples compared to natural lateritic soil
SDA has the potential to be used as a substitute for soil stabilization in soil stabilization applications

Summary

Introduction

The shortage of good quality soil suitable for construction and the recent emphasis on environmentally friendly mitigation strategies have prompted geotechnical engineering to explore and perfect systems for reusing excavated soils [1] and [2]. While soil modification is accomplished by adding various admixtures such as lime or cement to alter the soil's index properties, soil stabilization is accomplished by treating the soil to increase its durability and strength to propose it is suitable for construction [7]. The created saw dust ash keeps gathering the mineral nutrients included in the waste wood, excluding nitrogen molecules, which are primarily discharged into the gaseous state during ignition. This research aims to briefly re-examine the effect of saw dust ash on soil stabilization and its reaction mechanism using extensive physicochemical and microanalysis. Environmental friendly issue and future disaster risk reduction due to soil failure may be explained by using saw dust ash for soil stabilization and construction

Statement of problem

Saw dust ash properties

Saw dust ash application

Findings

Conclusions