Utilization of Construction Waste Tiles as a Replacement for Fine Aggregates in Concrete

A A Adekunle,K R Abimbola,A O Familusi

doi:10.48084/etasr.1071

Abstract

Ceramic wastes are found to be suitable for usage as substitution for fine and coarse aggregates in concrete production. This study is an investigation into the utilization of waste tiles as partial replacement for fine and coarse aggregates in concrete. The control mix and other mixes containing cement, water, granite and partial replacement for sand with crushed tiles (in 5%, 10%, 15% and 20% proportions) were cast, cubed, cured and crushed. Also, another mix containing cement, water, sand and partial replacement of granite with crushed tiles (in 25%, 50% and 75% proportions) were cast, cubed, cured and crushed. The specimens were tested for their respective compressive strengths using the Universal Testing Machine (UTM) on the 7th, 14th, 21st and 28th days of curing. At 28 days, the compressive strength value of 5% of fine-waste tiles replacement was 20.12 N/mm2 while that of 10%, 15% and 20% were 14.24 N/mm2, 11.04 N/mm2 and 10.12 N/mm2 respectively. Moreover, at 28 days, the compressive strength of 25% of coarse-waste tiles replacement shows an increase to 22.45 N/mm2 while that of 50% and 75% were 18.4 N/mm2 and 12.2 N/mm2 respectively. Thus it can be concluded that fine aggregates can be substituted at 5% waste tiles while coarse aggregates can be substituted at 25% waste tiles.>/p>

Highlights

Aggregate is one of the most important materials in use for concrete production as it profoundly influences concrete properties and performance
The sieve analysis revealed that most of the coarse waste tile materials were within the range between 2.5 mm to 19 mm in particle size diameter with a fairly good gradation pattern, and the nominal maximum particle size diameter was 12.5 mm
While for fine materials, the analysis showed that most of the fine waste tiles material was within the range between 0.2 mm to 2.5 mm in particle size diameter with a very good gradation pattern, and the nominal maximum particle size diameter was 4.75 mm, as shown in Figures 1 and 2

Summary

Introduction

Aggregate is one of the most important materials in use for concrete production as it profoundly influences concrete properties and performance. Not much research has been done on incorporating normal ceramic wall tiles waste as partial substitute of fine aggregates or cement, in the production of structural concrete. Ceramic wastes are found to be suitable for usage as substitution for fine and coarse aggregates and partial substitution in cement production. Researchers have indicated their potential for usage in both structural and non-structural concrete and even for mortars. The optimal case of using waste ceramic tiles as coarse aggregates is found to vary from 10 to 30 percent In these measures, an increase happens in compressive strength, and a decrease in unit weight occurs. In [4] it is affirmed that the increase in tiles powder leads to the increase in workability of concrete

Methods

Results

Conclusion