Characteristics Properties of Concrete by Replacing Natural Sand by Manufactured Sand [M-Sand] and Ground Granulated Blast Furnace Slag [GGBS]

  Prof. Nitin Arvind Deshpande,  Manjunath Kullur,  Pruthviraj A

A good quality concrete is produced by careful mixing of cement, sand, coarse aggregates, water and admixtures in proper proportions so as to obtain an optimum quality and economy. About 35% volume of concrete is comprised of sand. Nowadays, due to constant sand mining the natural sand is depleting at an alarming rate. Sand dragging from river beds has led to several environmental issues. This has led to a scarcity and significant increase in the cost of natural sand besides leading to scarcity of water because of degradation of water bodies and depletion of water bed. In the present project work, an attempt will be made to study the various characteristic properties of concrete by replacing Natural Sand with Manufactured Sand (M-Sand), Ground Granulated Blast Furnace Slag (GGBS). Initially, concrete mix design is carried out for M-20 mix after conducting the various tests on natural sand such as specific gravity, fineness modulus, silt content, bulk density etc. At the same time, tests are carried out on cement, coarse aggregates and chemical admixtures used for the mix design. Later, the Natural sand in concrete is replaced by Manufactured Sand (M-Sand), Ground Granulated Blast Furnace Slag (GGBS) in various percentages such as 0%, 20%, 40%, 60%, 80% and 100%. The effect of mixing proportions and water-cement ratio are studied in parallel. The workability characteristics of fresh concrete by slump cone test are noted for each percentage replacement and for various dosages of the chemical admixture. For compressive strength, concrete cubes of size (150mm*150mm*150mm) are casted and for tensile strength, concrete cylinders of diameter 150mm and length 300mm are casted and for flexural strength, concrete beams of size (500mm*100mm*100mm) are casted.

Keywords- Manufactured Sand (M-Sand), Ground Granulated Blast Furnace Slag (GGBS), Cement, Concrete, Compressive strength, Flexural strength, Split tensile strength.

Unique Identification Number - IJEDR2004027
Page Number(s) - 155-159
Pubished in - Volume 8 | Issue 4 | December 2020
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Prof. Nitin Arvind Deshpande,  Manjunath Kullur,  Pruthviraj A,   "Characteristics Properties of Concrete by Replacing Natural Sand by Manufactured Sand [M-Sand] and Ground Granulated Blast Furnace Slag [GGBS]", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.8, Issue 4, pp.155-159, December 2020, Available at :http://www.ijedr.org/papers/IJEDR2004027.pdf