EFFECT OF FIBRES ON THE COMPRESSIVE STRENGTH OF HOLLOW CONCRETE BLOCKS

In construction, the material that is used most commonly is concrete. This being the most versatile used material in construction, cementitious material improvement becomes extremely essential. Destructive nature cum brittle failure and limited tensile strength are considered as the two major proven setbacks of conventional concrete. This paper attempts to analyze the effect of addition of different types of fibres in hollow concrete blocks. The fibre used in the present work includes polypropylene, steel, glass, nylon and coconut fibres in different proportions. The main aim of the investigation program is to find the optimum value of fibre content and also the impact of addition of fibres on the compressive strength of hollow concrete blocks. The hollow concrete block samples were tested for compressive strength after 28 days of curing period and a notable increase in compressive strength is observed for all the percentage addition of fibres when compared with the hollow concrete block without fibres.