Flexural Behaviour Of Bamboo Reinforced Beam With GGBS, Steel Fibre And Using Demolition Waste As Fine Aggregate

Abstract

Concrete is widely used as a construction material & also RCC plays vital role in construction. The cost of construction is increasing due to increase in the cost of steel, sand and cement. To control the cost of construction and to promote the use of natural products such as bamboo & the demolition waste as a partial replacement of fine aggregate is very much essential for construction. In this experimental work compressive strength and flexural strength of concrete for mix M20 was carried out by replacing fine aggregate with demolition waste (10%-50%), using 20% of GGBS as a cementitious material and 1% steel fibre. From the results it is concluded that optimum replacement of demolition waste as fine aggregate is 40%. In this experimental work performance of beam in flexure is studied by replacing steel by bamboo, partial replacement of cement with 20% GGBS & Fine aggregate is replaced by 40% of demolition waste and using steel fibre 1%. Four beams were casted and they were classified into two different groups (A & B) Beam in Group A represents conventional RCC beam and RCC beam with 40% of demolition waste & 20% of GGBS & 1% of steel fiber. Beams in Group B were made of Bamboo reinforced beam with 40% of demolition waste & 20% of GGBS & 1% of steel fiber and Wire binded Bamboo reinforced beam with 40% of demolition waste & 20% of GGBS & 1% of steel fiber. Beams were tested under two-point load in loading frame and parameters such as Load at first crack, Ultimate load, Load deflection behaviour, Crack pattern were studied. In this experimental work it is observed that percentage replacement of RCC beam with 40%Demolition Waste & 20% of GGBS & 1% of steel fiber (RB2) the Ultimate load carrying capacity is increased as compared with conventional RCC beam (RB1). In this experimental work it is observed that Bamboo reinforced beam (BR1) the Ultimate load carrying capacity is decreased as compared with conventional RCC beam (RB1). Hence it is reasonable to use Beams reinforced with Bamboo with 40% replacement of sand by demolition waste and 20% GGBS as replacement with cement and 1% steel fiber for low-cost House Construction.