Partial replacement of sand with marble waste and scoria for normal strength concrete production

Abstract

Sand is used more than any other natural resources except water and air, However, it's extracted at a rate far greater than it's renewal. The availability of sand in the growing demand of the construction industry will be a challenge due to a wide range of variability, cost, and, quality problems. This study aims to investigate normal strength concrete by partially replacing sand with marble waste and scoria. Experimental investigations were conducted to study the chemical, physical, mechanical and fresh property of concrete containing marble waste and scoria. Marble: scoria ratios of 2:1, 1:1, and 1:2 was used and then the combined fraction of both marble waste and scoria in concrete was increased from 33 to 67 and 100%. Chemical analyses of the marble waste show that it is mainly composed of CaO and SiO 2 , whereas scoria is composed of SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO, and MgO. Concrete containing marble waste and scoria as a sand replacement shows better compressive strength than the conventional concrete but the workability and compressive strength decrease with an increase in the content of marble waste and scoria. Cost analyses indicate that concrete containing marble waste and scoria can save up to 4.5% of the total cost of concrete with weight reduction up to 5% and the optimum replacement level is 22.5% marble waste and 44.5% scoria.

Polyethylene Terephthalate Wastes as a Partial Replacement for Fine Aggregates in Concrete Mix, Case of Jimma Town, South West Ethiopia

“…Control mix designs, C-25 were prepared for this investigation. The main reason for selecting this concrete grades is that they are known as medium concrete grades [9]. The tests were performed on the different materials and concrete samples produced in this study.…”

A study on the applicability of scoria gravel an alternative base course material through blending with marble waste aggregate

“…Globally, it was estimated that 32–50 billion metric tons of aggregates (sand and gravel) are extracted each year for various purpose [ 5 ]. The extraction of these aggregates from their natural sources depletes its natural resources and pollutes the environment on a large scale that is leading to environmental degradation [ 6 , 7 , 8 ]. In flexible pavements the role of the unbound layer is unique, its primary function is to enhancement of structural layer capacity.…”

“…In road infrastructure, the quality of the base course material in terms of a significant engineering properties is serious. If the required base course material is not available within an unacceptable distance of the construction site, then high rates must be paid during the road construction process, causing substantial delays [ 8 ]. In such instances, working with low-quantity materials that are readily available locally is a good option.…”

“…Moreover, Marble is one of the largest manufactured natural stones in the world and it accounts for 50 percent of the world's natural stone production. Depending on the type, quarrying, and processing method used and its irregular shape, smaller size, cutting and polishing process, marble production generates 20–30% waste [ 8 ]. Ethiopia has presently about fourteen marble processing Industries located in various parts of the country, which generated 409,374.00, 572,421.00, 613,820.00, 770,000.00, and 1,000,000.00 m 3 of marble commodities in 2009, 2010, 2011, 2012, and 2013, respectively [ 14 ].…”

Sustainable Alternatives for Green Mortar: Quarry Waste and Ultra high fly ash utilization

“…Recently, the potential candidates for sand replacement in concrete i.e. marble leftover, scoria and bottom ash were also evaluated [4,5]. In addition, a binding material, geopolymer, has become the pivotal point of concrete researchers for the last one decade as a promising replacement for cement which account for almost 88% of the total emissions of concrete mix [6,7].…”