Experimental Study of the Usability of Recycling Marble Waste as Aggregate for Road Construction

Omrane Benjeddou,Nuha Mashaan

doi:10.3390/su14063195

Omrane Benjeddou, Nuha Mashaan

Open Access

https://doi.org/10.3390/su14063195

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Abstract

The road construction industry consume a considerable amount of natural aggregates in the world. As a consequence, the increase in the natural aggregates demand increases the construction cost. On the other hand, marble spoil waste, generated from marble cutting and polishing process, is an environmental nuisance in the world. Indeed, an economical solution to this problem is the reuse of these wastes as an aggregates for road construction. The main objective of this study is to evaluate the usability of aggregate, obtained by crushing marble waste, as a conventional aggregate for road construction using an experimental investigation. To achieve this objective, these experimental tests were carried out on fine and coarse marble aggregate samples: sieve analysis, Atomic Absorption Spectrometry, calcium carbonate content, scanning electron microscope (SEM), X-Ray- diffraction (XRD), densities, water absorption, equivalent of sand, Los Angeles, Micro Deval, flakiness index, and shape index. Finally, experimental test results show that the chemical composition and the physical and mechanical properties of marble aggregate recommend it to be used as a conventional aggregate for road construction.

Highlights

IntroductionThe cost of this construction is very expensive due to the high amount of used aggregate, which constitute nearly 95% of rigid pavements
Road and pavement construction is one of the most important industries in the world.the cost of this construction is very expensive due to the high amount of used aggregate, which constitute nearly 95% of rigid pavements
The main objective of this paper is to study the usability of marble aggregates obtained by crushing marble wastes as a conventional aggregate for road construction

Summary

Introduction

The cost of this construction is very expensive due to the high amount of used aggregate, which constitute nearly 95% of rigid pavements. This has a considerable effect on the natural aggregate demand [1]. The main solution for reducing this demand on natural raw materials is the reuse of waste material. The reuse of recycling waste material has good impacts on environment protection and on the economy. Many countries are giving infrastructural laws relaxation for increasing the use of recycled aggregate [3]. The advancement of concrete technology can reduce the consumption of natural resources and energy sources, which in turn further lessens the burden of pollutants on the environment [4]

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