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

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.

Application of Rock Abrasiveness and Rock Abrasivity Test Methods—A Review

“…Some researchers also qualify the Los Angeles (LA) test to assess rock abrasiveness. However, it should be emphasized here that this test is used to assess the fragmentation resistance of the aggregates [19,20], not abrasive wear. It is performed under the European standard EN 1097-2 [21].…”

“…The second most commonly used method of evaluating rock abrasiveness is the micro-Deval test [17]. Benjeddou and Mashaan [20] used this method to assess the abrasion resistance of aggregate obtained by crushing marble waste as a conventional aggregate for road construction. The test was performed to verify that the coarse aggregate obtained by crushing marble waste is resistant to abrasion actions between the grains themselves and between grains and external loads.…”

Contribution to the characterization and valuation of a mixture of clay and dune sand for road construction

“…Dune sand identi cation tests, namely, particle size analysis aim to determine the weight proportions of grains of different sizes in the soil [22,23].The sand equivalent is an indicator, used in geotechnics, characterizing the cleanliness of sand [24,25].The methylene blue valuesits principle is measured by measuring the quantity of methylene blue that can be adsorbed on the test sample [26,27].…”

Optimization and valorization of a clay and dune sand mixture for use in road construction

“…The identification tests for dune sand include grain size analysis, which aims to determine the weight proportions of grains of different sizes in the soil [29,30]. The sand equivalent test is an indicator used in geotechnical engineering to characterize the cleanliness of sand [31,32]. The methylene blue value is determined by measuring the amount of methylene blue that can be adsorbed on the test sample [33,34].…”