Abstract:
The rice husk, locally available at low cost contains a high content of silica and hence can be used as a partial cement replacement material in the form of ash. The rice husk ash upon grinding into possible fine size passing through sieve No. 200 produce a cementicious calcium silicate hydrate. After burning the rice husk up to 725oC, the ash formed is ground finely. The resultant product is used as cement replacement (by weight) with different pro-portions i.e 25%, 30%, 40% and 50% cement replacement by RHA. The rice husk ash cement concrete was checked for compressive strength, flexural strength, and resistance to chemical attack. The research reveals that the strength of concrete containing 25 percent of RHA is not affected appreciably but the cost is reduced considerably. It is also found that the resistance to chemical attack of RHAC concrete is much better than ordinary Portland cement concrete.
Page(s):
77-80
DOI:
DOI not available
Published:
Journal: Journal of Engineering and Applied Sciences, Volume: 22, Issue: 1, Year: 2003