International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
Effect of Magnesium Sulfate Attack on Basalt Fiber Reinforced Concrete with Partial to Full Replacement of Natural Sand by M - Sand Naushin Hawaldar1, Prof. Vishwanath R. Charantimath 2 1M.
Tech Student & Department of Civil Engineering, S. G. B. I.T. Belagavi, Karnataka, India & Department of Civil Engineering, S. G. B. I.T. Belagavi, Karnataka, India ---------------------------------------------------------------------***--------------------------------------------------------------------2. TYPES OF FIBER Abstract - In this study basalt 12mm chopped fibers are 2Professor
used and manufactured sand is used as partial to full substitute of natural sand to overcome the lack of good quality river sand and to prepare economic concrete mixes and tested for different strength tests of concrete. A total of 7 mixes of M30 grade of concrete were prepared by varying the percentage of M sand with a fixed percentage of basalt fibers. All the specimens were tested for compressive, split tensile and flexural strength in the laboratory and results were reported. M30 grade of concrete is achieved and addition of basalt fiber with 100% M sand gave the highest compressive and tensile strength and improved flexural strength to some extent.
2.1 Basalt Fiber Igneous rock is formed through the cooling and solidification of magma or lava. Metamorphic rock is the result of the conversion of an existing rock type, the protolithic, in a process referred as metamorphism, which means “change in for” and basalt originates from volcanic magma and floor volcanoes, a very hot fluid or semifluid material under the earth’s crust, solidified in the open air. Basally is a usual word referred for different volcanic rocks, which are gray, dark in color, produced from the molten lava after solidification.
Key Words: Basalt Fiber, Fiber Reinforced Concrete, Sulfate Attack, Manufactured Sand, Compressive Strength, Split Tensile Strength, Flexural Strength.
1. INTRODUCTION Concrete made with Portland cement is rich in compression but poor in tension and so leans to be brittle. The poor tension strength can be conquered by the use of steel reinforcement and to some extent by the addition of enough quantity of fibers. The inclusion of various sort of fibers in concrete have drastically improved its compressive, tensile and flexural strength.
Basalt fiber is made in a constant process by melting crushed basalt rock at 1500oc temperature and is stretched into extremely fine fibers of basalt, which is composed of the minerals plagioclase, pyroxene, and olivine. The fiber has high strength of extension and has excellent ductility and its corrosion and fire resistance is far better than other types of fibers.
Conventional concrete is changed by unsystematic distribution of tiny discrete fine fibers to enhance its mechanical properties is referred as fiber reinforced concrete (FRC). Many fibers have been used till now to improve the properties of conventional concrete. A new advanced fiber called Basalt fiber is a new inorganic fiber material with high heat resistance, high dielectric property, corrosion resistance, high chemical stability high resistant to alkaline, acidic and salt attack and low cost, thus it is a classic ceramic fiber with a nearly density (2.63- 2.8g/cm3) as cement concrete and mortar, Use of basalt fiber has shown improved results in the compressive, tensile & flexural strength of concrete. In the present study to overcome the lack of good quality natural river sand and to study the contribution of M sand in strength aspects of co concrete and to make concrete economic, Basalt fiber reinforced concrete is prepared by replacement of natural sand with M sand in different percentage i.e. 20%, 40%, 60%, 80%, and 100%.
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Impact Factor value: 5.181
Steel Fiber Polypropylene Fiber Glass Fiber Asbestos Fibers Carbon Fibers Organic Fibers Basalt fiber
Fig -1: Basalt fiber
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