A Study on the Use of Rice Husk Ash in Concrete from Sustainability Consideration

Abstract

A Study On The Use Of Rice Husk Ash In Concrete From Sustainability Consideration civil project report Rice husk ash (RHA) possesses high pozzolanic activities and very suitable as partial replacement of cement in concrete. This paper presents a comparative study on use of RHA as partial replacement of cement in concrete specimens.

Review of the researches on physical, mechanical and structural properties of concrete containing RHA as partial replacement of ordinary Portland cement was included in this paper. Simultaneously, concrete specimens were tested with different percentages of RHA as replacement of cement content and with different w/c ratio. Compressive strength, flexural strength, tensile strength and slump test were carried out to evaluate the appropriateness of using RHA in concrete.

Conclusion

A Study On The Use Of Rice Husk Ash In Concrete From Sustainability Consideration civil project report Based on the limited study carried out on the strength behavior of Rice Husk ash, the following conclusions are drawn: At all the cement replacement levels of Rice husk ash; there is gradual increase in compressive strength from 3 days to 7 days. However there is significant increase in compressive strength from 7 days to 28 days followed by gradual increase from 28 days to 56 days.