All-in-One about a Momentous Review Study on Manufactured-Sand as Fine Aggregate in Concretes
Faizan Ahmad Wani1, R. Ramasubramani2
1Faizan Ahmad Wani, Department of Civil Engineering, SRM Institute of Science & Technology, Chennai (Tamil Nadu). India.
2R. Ramasubramani, Department of Civil Engineering, SRM Institute of Science & Technology, Chennai (Tamil Nadu). India.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 1946-1952 | Volume-8 Issue-7, May 2019 | Retrieval Number: G5683058719/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Natural river sand (NRS) has been in use as fine aggregate in various types of concrete and mortar works and as the demand for concrete based products is rising due to the exponential infrastructure growth globally it is needed that more fine aggregate be produced, causing detrimental effects on the environment because of the excessive sand quarrying to produce the required quantum. The environmental concern has forced various State Governments to impose restrictions on NRS quarrying; further the excessive, illegal and seasonal NRS quarrying has caused a steep hike in NRS prices. Researchers have been taking efforts to find an alternative to NRS as a replacement of fine aggregate in conventional concrete and M-sand (Manufactured sand) has surfaced as a viable alternative. The parent source of M-sand is the abundant lithological reserve (rock) of the earth’s crust and it is produced by crushing these rocks as per a grade of requirement to act as a partial or full replacement of NRS in concrete and mortar works. M-sand production process gives control over the quality, quantity, form, quarrying and crushing methods, it also checks onto the unwanted organic and soluble compounds, which are generally expected to be along with NRS, thus helping to maintain end product quality. M-sand characteristic properties have significant effects on compressive strength, flexural strength, impact resistance, abrasion resistance, permeability, workability etc. all these have been discussed in this paper. One of the major issues with production of M-sand was the excess of fines produced, which was disposed off at high prices initially but now with advancements in M-sand technology the fines have been used as supplementary cementitious material in M-sand concrete and mortar works. This study delineates the effects M-sand and fines on concrete, various special concretes and on mortars. Their performance in association to various parameters of strength and other durability properties is presented in a detailed manner.
Keyword: Concrete, Fines, M-Sand, Natural River Sand, Replacement of Fine Aggregate.
Scope of the Article: Concrete Engineering.