STRENGTH PROPERTIES OF POLYPROPYLENE FIBRE REINFORCED CONCRETE

Abstract

My project deals with the effects of addition of various proportions of polypropylene fibres on the properties of M20 mix design concrete. An experimental programme was carried out to explore its effects on compressive strength under curing conditions. The main aim of the investigation programme is to study the effect of polypropylene fibre mix by varying content such as 0%, 0.5%, 1%, 2% and finding the optimum polypropylene fibre content. The concrete specimens were tested at different age level for mechanical properties of concrete namely, cube compressive strength.  The scope of present study is To study the workability in terms of compaction factor. To study the slump value. To study the strength characteristics in terms of compressive strength. Standard cubes of 150 X 150 X 150 mm have been cast and tested for obtaining 7 days, 14 days, 28 days compressive strength. The most common reason for adding admixtures is to alter the workability, improve the rate of gain of strength. Here we are using polypropylene fibre as admixture and mix design of M20 grade