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Paper Title : USE OF DISCRETE FIBERS IN ROAD CONSTRUCTION

ISSN : 2395-1303
Year of Publication : 2021
10.29126/23951303/IJET-V7I4P31

Authors: -Anshu Srivastava, Mr. Vishal Rawat

         


Abstract
- Concrete is strong in compression but weak in tension and brittle also. Cracks also start forming as soon as the concrete is placed. These 3 drawbacks don‟t permit the use normal concrete in pavements as they lead to lack of ductility along with fracture and failure. These weaknesses in concrete can be mitigated by using fibers as reinforcement in the concrete mix. Waste materials in the form of polyethylene and tires cause environmental pollution which leads to various health problems. Polyethylene and waste tires can be recycled and used effectively in the concrete as reinforcement in the fiber form. Polyethylene is a synthetic hydrocarbon polymer which can improve the ductility, strength, shrinkage characteristics etc. This paper deals with the effects of addition of polyethylene fiber on the properties of concrete. Polyethylene and tire fibers were cut into the size of 30mm x 6mm and they were used 1.5% each by volume. Grade of concrete used were M30, M35 and M40. IRC 44:2008 was followed for the design of concrete mix. In this study, the results of the Strength properties of Polyethylene fiber reinforced concrete have been presented. 4 point bending test and double shear test were performed in the laboratory for flexure and shear strength determinations. There was seen an increase of 18% in the 28 day compressive strength along with an increase of 39% in flexure and 32% in shear strength. 22% decrease in 4 point bending test and 36% decrease in double shear test in deflection was found out from the experiments. Theoretical analysis of deflection was carried out by the help of energy methods. Practical values were verified with the theoretical values within the permissible limits. Finally it can be concluded that polyethylene and tire can be used effectively in reinforced cement concrete.

Reference
[1] ACI Committee 544, State-of-The-Art Report on Fiber Reinforced Concrete, ACI 544 1.R-96. Retrieved May 10, 2015, from http://www.fortaferro.com/pdfs/5441r_96. [2] Fiber reinforced concrete. (2013, October). Retrieved May 10, 2015,from http://www.theconcreteinstitute.org.za/wpcontent/uploads/2013/10/FibreReinforced.pdf [6] Balaguru P.N and Shah S.P (1992) „Fiber ReinforcedCementComposites‟McGraw Hill, In., New York. [7] IS 456 – 2000 „Indian Standard Code of Practice forPlain andReinforcedConcrete‟, 4th revision, Bureau of Indian Standards, New Delhi – 110 002 [8] Shetty, M. (2005). Concrete technology: Theory and practice (6th ed.). Ram Nagar, New Delhi: S. Chand. [9] Ramamrutham, S., & Narayan, R. (1995). Strength of materials. Delhi: Dhanpat Rai & Sons. [10] Hasan, M.J., Afroz, M., and Mahmud, H.M.I. (2011) “An Experimental Investigation on Mechanical Behavior of Macro Synthetic Fiber Reinforced Concrete,” International Journal of Civil & Environmental Engineering, Vol. 11, No. 03 [3] Vasani, P., & Mehta, B. (n.d.). DUCTILITY REQUIREMENTS FOR BUILDINGS. Retrieved May 10, 2015, from https://www.sefindia.org/?q=system/files/D uctility-1.pdf [4] Fracture Toughness. (n.d.). Retrieved May 10, 2015, from https://www.ndeed.org/EducationResources/ CommunityCollege/Materials/Mechanical/F ractureToughness.ht m [5] Ronald F. Zollo (1997)„Fiber-reinforced Concrete: an Overview after 30 Years of Development‟ Cement and Concrete Composites, Vol.19, pp.107-122
Keywords
— Cracks, Concrete, Fibers, Polythene, Compressive Strength