EXPERIMENTAL INVESTIGATION OF UHPC USING ACID AND CHLORIDE PONDING TESTS

Monish S, Shiva Kumar KS, Manoj V

Abstract: This paper presents the development of Ultra High Performance Fibre reinforced Concrete (UHPFRC) using mineral admixtures. UHPFRC mixture proportions were developed using local materials such as Micro silica and Metakaolin. The Ultra-High Performance Concrete (UHPC) used in this study is steel fibre reinforced concrete consisting of an optimized gradation of both fine and coarse agg along with different water/cement ratios. Experimental investigation was carried out for two different UHPFRC mixes Mix1 (without CA) and Mix2 (with CA) with different water cement ratio of 0.3, 0.28, 0.26 and 0.24 respectively. Both the UHPFRC mix had same values of steel fibre in terms of volume fraction (0.5%). It was found that Mix 1 with W/C ratio 0.24 has more compressive strength when compared to Mix 2 W/C ratio 0.24 and other W/C ratios.

Keywords: Ultra-High Performance Concrete, Metakaolin, Micro silica, steel fibres, ACID Test, Chloride Ponding Test

DOI: https://doi.org/10.15623/ijret.2016.0509058