Concrete Property Analysis with the Perspective of '5-10-14-18' and '5-10-18-22' Band Gradation

摘要

Recent concrete specifications often require the use of combined aggregate gradation that meets the "8-18" band gradation. But theoretically "8-18" band covers a wide range of aggregate variation which may result in variable properties of concrete. To avoid this drawback, two new band gradations were proposed, these are, "5-10-14-18" and "5-10-18-22" bands. This paper analyses different aspects of these proposed bands through a number of concrete mix results.