EXPERIMENTAL STUDIES ON REPLACEMENT OF CEMENT WITH CHALK POWDER AND COCONUT FIBER IN CONVENTIONAL CONCRETE

Vineet Singh T, Tiwari Rakesh Prasad, Sure Mounika, Vemula Sujeeth Kumar Reddy

Abstract: The materials chosen for construction should be pollution and should not endanger the resources. They should be conveniently used by the ordinary people and be low in monetary cost. Coconut fiber and chalk powder are abundant, versatile, renewable and cheap. Reusing of chalk powder reduces the waste released by various schools, colleges and educational institutions. Coconut Fiber is light in weight and is consistent in high quality. The aim of this experimental study was to check whether there is a possibility of using the coconut fiber and chalk powder in addition to the other constituents of concrete and to study the strength properties. In the present study the deformation properties of concrete cubes under static loading condition and the behavior of structural components in terms of compressive strength for conventional concrete(CC), chalk powder reinforced concrete (CPRC) and coconut fiber reinforced concrete(CFRC) has been studied. In this project we have prepared 21 cubes out of which 3 are CC, 3 CPRC(1%), 3 CPRC(2%), 3 CPRC (3%), 3 CFRC(1%), 3 CFRC(2%), 3 CFRC(3%). To identify the effects on workability, workability tests such slump cone test was conducted on the cubes prepared by conventional concrete, chalk powder and coconut fiber. The standard cubes for CC, CPRC and CFRC were casted and tested under CTM (compression testing machine). We conclude that there is a decrement by 4.4% in compressive strength of CP (1%) when compared to CC. There is a decrement by 2.8% in compressive strength of CP (2%) when compared to CC. There is a decrement by 8.4% in compressive strength of CP (3%) when compared to CC. There is a decrement by 2% in compressive strength of CF (1%) when compared to CC. There is a increment by 1.7% in compressive strength of CF (2%) when compared to CC. There is a increment by 4.2% in compressive strength of CF (3%) when compared to CC

Keywords: CC – conventional concrete, CPRC – chalk powder reinforced concrete, CFRC –coconut fiber reinforced concrete, CP – Chalk Powder, CF – Coconut fiber

DOI: https://doi.org/10.15623/ijret.2016.0509047