Fatigue Characteristics of High Performance Fiber Reinforced Concrete.

Autor: D., Sindu, J. V., Praveen, C. M., Ravikumar, N., Muralidhar, M., Roopa
Předmět:
Zdroj: IUP Journal of Structural Engineering; Jul2022, Vol. 15 Issue 3, p34-41, 8p
Abstrakt: High Performance Concrete (HPC) plays a very important role in some constructions such as hydraulic structures, high-rise building and long bridges. The paper is an exploratory investigation of fiber reinforced HPC for their mechanical properties by replacing the coarse and fine aggregates with crushed concrete waste and foundry sand, respectively. Foundry sand is replaced 0% to 40% with 5% interval, and crushed concrete waste is replaced 0% to 40% with 10% interval. The mechanical properties like fatigue strength, impact strength, compression strength, flexural strength, split tensile and shear strength of HPC with and without addition of fibers are evaluated. For manufacture of HPC, M-80 Grade concrete has been chosen. According to IRC44:2017 guidelines, the mix design process is conducted. Conventional dosage of superplasticizer is managed in the concrete to make a better execution. Polypropylene fibers of 0.3% by total cement weight are used. Mechanical properties are obtained by manufacturing the particular sizes of mold cured for 7, 14 and 28 days for different tests, and results are tabulated for respective days and conclusions are obtained. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index