Performance of Concrete with Fly Ash and Kaolin Inclusion

Afaf Ghais^*, Duaa Ahmed, Ethar Siddig, Isra Elsadig, Samah Albager

Chemical Engineering Department, University of Khartoum, Khartoum, Sudan.

DOI: 10.4236/ijg.2014.512118                

Abstract

Waste materials of environmental risks, costly landfill disposal can be utilized in cement and concrete applications. Partial replacement of cement in engineering projects reduces the cost of construction with ecological benefits. The type and mix ratio affects the strength and workability of cement-concrete matrices. This research deals with the replacement of Class F fly ash and kaolin with cement used in concrete. Replacement of 10% fly ash with cement improves the comprehensive strength of concrete in 28 days period, and the workability is increased by 53.8%. The kaolin replacement reduced both the strength and workability of concrete.

Keywords

Fly Ash, Kaolin, Strength, Workability

Conflicts of Interest

The authors declare no conflicts of interest.

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