International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
www.irjet.net
Review Paper on Partial Replacement of Natural River Sand by Industrial or Mining Waste in Mortar Karan H. Chudasama1, Poonam. I. Modi2 1Post
Graduate Student, Applied Mechanics Department, L. D. College of Engineering, Ahmedabad, India Professor, Applied Mechanics Department, L. D. College of Engineering, Ahmedabad, India ---------------------------------------------------------------------***--------------------------------------------------------------------2Assistant
Abstract - Natural river sand (NRS) is the main fine
aggregate being used from long time now. Supply of NRS is getting banned in many parts of country like Maharashtra and Rajasthan as the sources are being depleted and it is illegal as well. Hence it is necessary to replace NRS as fine aggregate. There is also need of making construction industry sustainable, which can be done by utilizing waste from other industries or some mining waste, as some construction material. There are many potential wastes which can be utilized as NRS replacement like granite dust, marble powder, recycled masonry aggregate, recycled high impact polystyrene, grit residues, etc. This NRS replacement must not adversely affect the strength & properties of the mortar. Therefore, this paper presets the review of some research paper, in which there is replacement of Natural River Sand in mortar by any industrial or mining waste. Research in this field and positive results from their work are important to study & implement further for making construction industry sustainable.
Key Words: sustainable mortar, sand replacement in mortar, mining waste, granite dust, sustainable construction material, marble powder
1. INTRODUCTION The need to substitute Natural River Sand (NRS) as a fine aggregate is growing by the day. The provision of NRS is being outlawed in many sections of the country as its sources are low, and it is also illegal. On the other hand, there are many waste materials like granite dust, marble powder, recycled masonry aggregate, recycled high impact polystyrene, grit residues, etc. and their quantities are increasing day by day. Almost all that mentioned, are nonbio-degradable. As a result, proper garbage disposal is critical. Construction might become more sustainable if this type of waste is used in the construction industry as building materials. Incorporating such garbage into building materials is a great and cost-effective method because it reduces the need of natural resources like sand. The use of waste materials in civil construction is becoming increasingly popular since it provides a proper destination for trash, minimizes environmental concerns, and saves money by replacing old pricey materials with useless wastes. Several waste products have been used in the past to substitute sand in mortar mixes in order to make the © 2022, IRJET
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construction industry more sustainable and reduce the impact of waste on the environment. For example, recycled masonry aggregate is used to replace sand in mortar.
2. LITERATURE REVIEWS André Luis de Oliveira Júnior, Leonardo Gonçalves Pedroti et al. [1] tested Grit residues produced during the Kraft process for producing cellulose, as potential sand replacement. Sand replaced mortar was tested for flowability, compressive strength, flexural strength & adhesive strength. The sand replacement percentages of 10%, 15%, and 20% were examined. The use of grits residue instead of sand, reduced the flow values of the mortars. The reason for this was because the rate of absorption of the residue was faster than that of the sand. The flow index of ecological mortars with a 20% replacement ratio was found to be around 4% lower than the flow index of conventional mortars. The compressive strength of ecological mortars was higher than that of conventional mortars. It was able to deduce from the reported results that replacing 15% of the sand with residue was the best-case scenario. The compressive strength of these mortars after 28 days was 27.4 percent higher than that of standard mortars. The flexural strengths of the ecological mortars were not significantly different from the reference mortar's flexural strength. The tensile bond strength of the mortar with 15% fine aggregate replacement by grits was 35.1 percent greater than that of the reference mortar. This was owing to the residue's propensity to fill up spaces between cement grains, hence increasing the number of solid-particle contact points. Enrique Fernández Ledesma, José Ramón Jiménez et al. [2] investigated construction and demolition debris, namely masonry waste composed of red bricks and attached mortar, for sand replacement. 25%, 50%, 75%, and 100% sand replacement (by volume) was tested for various properties. M10 mortar (compressive strength = 10MPa) used for testing. Bulk density, occluded air content & workable life of fresh mortar with above mentioned replacement %, were evaluated by authors. Bulk density at 28 days, compressive & flexural strength, shrinkage, adhesive strength, capillary water absorption, resistance to sodium-sulphate attack, leaching were evaluated for hardened mortar by authors. ISO 9001:2008 Certified Journal
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