Combined Effects of Bottom Ash and Expanded Polystyrene on Light-weight Concrete Properties

Lam Tang Van,Tho Vu Dinh,Olga Aleksandrova,Boris Bulgakov,Dien Vu Kim,Sophia Bazhenova,A Volkov,A Adamtsevich,A Pustovgar

doi:10.1051/matecconf/201825101007

Lam Tang Van, Tho Vu Dinh + Show 7 more

Open Access

https://doi.org/10.1051/matecconf/201825101007

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Abstract

The benefits of using waste materials as a partial replacement for cement in high performance concrete are also discussed. This paper presents the combined effects of bottom ash TPP “Vung Ang” and expanded polystyrene aggregate on different the properties of light-weight concrete. Twenty different concrete mixtures with a water to cement ratio of 0.4 and superplasticizer to cement ratio of 0.015 were used. On the one hand, the EPS was partially replaced with (0 ÷ 40)% by volume of concrete mixture. On the other hand, the fine aggregate was replaced with (0 ÷ 30)% by mass of BA TPP “Vung Ang”. The engineering properties, including workability, density and compressive strength of light-weight concrete were investigated at different curing times. The level of decrease in the strength depends upon the replacement level of EPS and BA. Specifically, the concrete containing 40% EPS and 30% BA at 28 days of age decrease in average density and strength were 43.2% and 26.4%, respectively, in comparison with the control concrete.

Highlights

Recent years in Vietnam, with the recent rapid developments of High-Rise buildings in urban areas, larger and longer spanning concrete structures, better concrete performance with higher strength, lower density, low thermal conductivity and other properties is urgently required
The level of decrease in the strength depends upon the replacement level of expanded polystyrene (EPS) and Bottom Ash (BA)
Experimental study was carried out in the laboratory of Hanoi University of Mining and Geology to find out the effect of expanded polystyrene and bottom ash TPP “Vung Ang” on the light-weight concrete properties

Summary

Introduction

Recent years in Vietnam, with the recent rapid developments of High-Rise buildings in urban areas, larger and longer spanning concrete structures, better concrete performance with higher strength, lower density, low thermal conductivity and other properties is urgently required. Light-weight concrete has been used for structural purposes to meet these requirements and become an environmentally-sustainable material [1, 2]. It can be partially replaced volume of concrete mixture to produce light-weight concrete, which is an important material in reducing the dead-weight of concrete complying with special concrete structures of high-rise buildings [4, 5]. *. © The Authors, published by EDP Sciences.

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