Abstract

Self compacting concrete (SCC) requires a large quantity of fine materials compared to common concrete. In this work waste glass powder was used to replace (50%) of filler required. Two types of SCC were manufactured, a control SCC type (CTL) using cement and limestone filler and another with glass powder replacing 50% of the filler. Mechanical and durability properties, namely, compressive strength, resistivity, chloride ion penetration, carbonation, capillary water absorption and oxygen permeability were assessed on both SCC types. It could be concluded that waste glass powder can be used successfully in SCC improving chloride penetration and water absorption by capillarity and maintaining strength levels. The potential risk of alkali-silica observed on mortar was mitigated when incorporating glass powder.

Highlights

  • Concrete for the 21st century will have to be more durable, easier to apply, more predictable and greener

  • The aim of the present paper is to explore feasibility of using waste glass powder in Self-compacting concrete (SCC)

  • Alkali silica reaction (ASR) expansion for all specimens were significantly reduced by the use of 10% cement replacement by glass powder

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Summary

Introduction

Concrete for the 21st century will have to be more durable, easier to apply, more predictable and greener. Interest on SCC technology among constructors and in the construction industry in several countries has been growing in the last years This interest is due to the ease of placing SCC in heavily reinforced areas difficult to access, to the reduced effort in accomplishing some of the casting tasks and to the significant reduction of the construction period. This technology will, along with the mentioned advantages, lead to a considerable reduction of the acoustic noise levels as well as the use of secondary raw materials[3]. This use of by-products or waste materials in concrete reduces the environmental burden in construction

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