COMPARISON OF COMPACTED AGGREGATE RESISTANCE TEST METHOD WITH ASTM C1252

Abstract

This paper describes the determination of shape and surface texture characteristics of different mineralogical type and shape (both angular and round) of fine aggregates which were received from fourteen different sources. The ASTM C1252 methods (methods A, B, and C) were used to determine the uncompacted void content of fine aggregates. The compacted aggregate resistance (CAR) test was also conducted on the same group of fine aggregates with as received and standard gradation as well as on the aggregate blends (M0, M25, M50, M75, M100) to provide a more performance-based aggregate parameter. In this way, the CAR test and ASTM C 1252 methods for evaluating the shape and surface texture characteristics of fine aggregates can be compared.

Keywords

• CAR test, ASTM C1252, İnce agrega, Şekil, Yüzey pürüzlülüğü.