Study on Partial Replacement of Cement by Fly Ash in Fiber Reinforced Cement Concrete
Abstract
Study On Partial Replacement Of Cement By Fly Ash In Fiber Reinforced Cement Concrete has been used as a mineral admixture in cement and concrete. Using it provides several advantages, such as improved strength and workability properties, and environmental benefits related to the disposal of waste materials and to reduced carbon dioxide emissions. Alkali Resistant glass fibers are used as additional reinforcement of constant 0.17% by weight of cement.
Glass fibers acted as good crack arrester and increases split and flexural strength not increase in compressive strength. M40 grade of concrete is used for this study. The main objective of this work is to study the suitability of the fly ash as a mineral admixture for cement replacement and additional reinforcement of glass fibers in concrete.
Conclusion
- It is perceived that the concrete slump values are decreasing with the increasing fiber percentage. The reduction in slump with the increase in the fiber will be attributed to presence of fibers which causes obstruction to the free flow of concrete.
- It is perceived that the optimum dosage of polypropylene fiber + Quarry dust is 3%+0.3% & polypropylene fiber + Fly ash is 4%+0.4%.
- It is perceived that the compressive strength of the concrete increases to 21.45%, 32.45% and 39.62% from 1%, 2% and 3% of PPRC and 0.1%, 0.2% and 0.3% of QD when it is compared with ordinary reinforced concrete at 28 days.
