Conclusion
According to the test performed it is observed that there is remarkable increment in properties of concrete according to the percentages of hairs by weight of in concrete. When M- 15 concrete with 1% hair is compared with the plain cement concrete, it is found that there is an increase of 10% in compressive strength and 3.2% in flexural strength. When M-15 concrete with 1.5% hair is compared with the plain cement concrete, it is found that there is an increase of 22% in compressive strength and 8.6% in flexural strength. When M-20 concrete with 1% hair is compared with the plain cement concrete, it is found that there is no increase in compressive strength and 2% in flexural strength. When M- 20 concrete with 1.5% hair is compared with the plain cement concrete, it is found that there is an increase of 8.8% in compressive strength and 5.5% in flexural strength. When M-25 concrete with 1% hair is compared with the plain cement concrete, it is found that there is an increase of 4.6% in compressive strength and 3% in flexural strength. When M-25 concrete with 1.5% hair is compared with the plain cement concrete, it is found that there is an increase of 11% in compressive strength and 4% in flexural strength