Abstract
In order to investigate utility of mixed materials using fly ash and flue gas desulfurization wastes as subbase course material, firstly, unconfined compression tests were performed on specimens compacted at regular intervals after mixing materials and cured with various temperatures. Secondly, test pavements were conducted at two existing roads and both the conditions of road surface and bearing capacity of subbase course under traffic load were measured. As a result, it was found that the material concerned can be satisfied with the quality standard of subbase course, in addition, performance and durability seem to be maintaining satisfactory condition.
