Abstract
A series of laboratory tests and a full scale test pavement were carried out to examine the effects of classified fly ash (CFA) on improving quality and workability of roller compacted concrete (RCC) pavements. From those experiments, it became clear that CFA can improve the compactibility and reduce the unit water content. Furthermore, CFA can contribute to increase RCC slab thickness up to 35cm executed in one layer without loss of flexural strength in lower part of compacted slabs. These are desirable results to apply RCC for heavy duty pavements such as airport and seaport pavements.
