Assessment of Strength Properties for Hybrid Fiber Reinforced for Ultra High Performance Concrete

Abstract

A study has been made of mineral admixtures, such as ultra-fine Fly-ash and Metakoalin, and glass fibers and polypropylene fibers, to produce high performance Concrete. Glass fiber is maintained stable by volume by 0.25 percent by cement content in varying fractions (0.5 percent, 0.75 percent & 1.0 percent) and polypropylene fiber. SP 430 is applied to the concrete mix to ensure greater workability. The grade of concrete M70 is used. The cubes, cylinders and beams are casted for different water cement ratios of 0.275%, 0.30% and 1.00%. The strength tests are carried out for 14, 28 days and durability tests are carried for 56 days. The Behavior of the HPC specimens in compressive strength, flexure and splitting tensile strength were calculated. Due to the addition of mineral admixture & fiber volume into the mix, it gives very good performance & Suitable for construction.