Authors:

Abstract

Scarcity and the high cost of natural river sand due to government restrictions are the major problems for the construction industry. It was observed that cement quarry dust ratio is higher in quarry dust concrete mixes compared to conventional concrete mixes used for highway projects due to the effects influenced by shape, surface & content of micro fines of quarry dust. In this study, the cement quarry dust ratios were optimized to obtain the optimum strength, workability & to use quarry dust concrete using for industrial purposes. Workability, compressive strength tests were conducted on basic three quarry dust concrete grade mixes which vary quarry dust ratio percentage from 0.41 to 0.43 according to the British design approach. Workability of designed M20, M30 & M40 quarry dust concrete mixes has shown lower workability & compressive strengths on M20 0.41 and 0.42 grade quarry dust concrete mixes were higher compared to conventional concrete mixes. Cost analysis indicates that the percentage of cost reduction on optimized cement quarry dust ratio concrete mixes stands between 27% to 31% than conventional concrete mixes. It can be concluded that M20 – 0.41 and M20 – 0.42 QD concrete mixes can be used for industrial purposes as a replacement for conventional concrete mixes & using superplasticizer, M30 grade quarry dust concrete mixes and M40 – 0.41 quarry dust concrete mix can be used for industrial purposes with enhancing the workability and compressive strength than conventional concrete mixes. Further, it is concluded that optimized cement quarry dust ratio concrete mixes are cost effective compared to conventional concrete mixes.

Keywords: Concrete, Quarry dust, Compressive strength

How to Cite: De Silva DHJMVR, Udayakumara G. Optimizing Cement Quarry Dust Ratio in Concrete Asphalt Using for Industrial Purposes. CINEC Academic Journal. 2022;5(2):30–8. DOI: http://doi.org/10.4038/caj.v5i2.107