Abstract

The problem of waste generation has rapidly become a serious issue of concern for many scholars. This study takes the problem of waste that is generated from construction fields, such as demolished concrete, glass and aims to reuse the construction and demolition debris for use as aggregates in construction purpose. Study involving reuse of demolition waste like demolished concrete, glass as partial replacement of coarse and fine aggregate up to 20% was performed before. But in those studies, either coarse aggregate is replaced with demolition waste or fine aggregate was replaced with glass. This study attempts to fully replace coarse aggregate with demolished concrete and crushed glass as partial replacement of fine aggregate to a content of 20, 25 and 30%, respectively. The main findings of this investigation revealed that using glass in lieu of sand at 30% replacement as fine aggregate gives maximum compressive strength which is significantly greater than M35 (35 MPa) grade concrete and nearing M40 (40 MPa) to M45 (45MPa) grade concrete, which indicates the suitability of use in various constructions. It also revealed that with increasing quantity of glass the corresponding strength increase doesn’t occur linearly, but the rate of increase gradually slows down with increasing of the amount of glass in the concrete samples.

Highlights

  • As the number of constructions of various concrete structures is increasing, so is the quantity of demolition waste

  • Taseen Jubair Bhuiyan et al.: Investigation on the Use of Demolished Concrete and Glass in Concrete current study concentrates on these waste materials, especially glass waste and building construction waste to be used as substitutes for conventional materials in ordinary cement concrete (OPC) mixes

  • This will be demonstrated through experimental laboratory tests, using fine glass to substitute a certain percentage of fine aggregates, whilst using crushed brick concrete to substitute a full percentage aggregates in OPC concrete

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Summary

Introduction

As the number of constructions of various concrete structures is increasing, so is the quantity of demolition waste. The. Hasan Md. Taseen Jubair Bhuiyan et al.: Investigation on the Use of Demolished Concrete and Glass in Concrete current study concentrates on these waste materials, especially glass waste and building construction waste to be used as substitutes for conventional materials in ordinary cement concrete (OPC) mixes. Taseen Jubair Bhuiyan et al.: Investigation on the Use of Demolished Concrete and Glass in Concrete current study concentrates on these waste materials, especially glass waste and building construction waste to be used as substitutes for conventional materials in ordinary cement concrete (OPC) mixes This will be demonstrated through experimental laboratory tests, using fine glass to substitute a certain percentage of fine aggregates (sand), whilst using crushed brick concrete to substitute a full percentage aggregates in OPC concrete. This investigation will cover the viability of use of concrete demolition as a full replacement for coarse aggregate and the effectiveness of using glass as a partial replacement for sand as fine aggregate

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