Formulation of Compressed Earth Blocks Stabilized by Glass Waste Activated with NaOH Solution

Sihem Larbi,Abdelkrim Khaldi,Walid Maherzi,Nor-Edine Abriak

doi:10.3390/su14010102

Abstract

Due to the increase in demand for building materials and their high prices in most developing countries, many researchers are trying to recycle waste for use as secondary raw materials. The aim of this study is the optimization of a mixture of compressed earth blocks based on two sediments. These sediments were tested through the Vicat test to determine the proportion of each one and the optimal water content. The mixtures were treated by adding 10% of blast furnace slag and different proportions of dissolved glass in a NaOH solution. The results indicated that the mixture of 70% Oran sediments with 30% Sidi Lakhdar sediments treated with 4% glass waste produced a CEB (compressed earth block) with high compressive strength with low porosity. In addition, formulated CEBs have a very good resistance to water immersion.

Highlights

Low-cost construction is a modern civil engineering concept that uses locally available materials to obtain the desired strength, performance, and durability [1]
It is necessary to introduce new modern techniques in building construction by using new materials such as compressed earth blocks (CEB), which are a form of a ground construction unit based on the use of local materials [3], stabilized and pressurized to form a soil block [3]
Our study investigated the production of CEB, comprised of of a glass powder additive and NaOH solution [22]

Summary

Introduction

Low-cost construction is a modern civil engineering concept that uses locally available materials to obtain the desired strength, performance, and durability [1]. It is necessary to introduce new modern techniques in building construction by using new materials such as compressed earth blocks (CEB), which are a form of a ground construction unit based on the use of local materials [3], stabilized and pressurized to form a soil block [3]. This is an available material that is recyclable as raw materials in cases of improper treatment [4]. The soil is mixed with an adjuvant, and sometimes Portland cement [6]

Objectives

Methods

Results

Conclusion