A research project on the evaluation of methods of rural road rehabilitation has been conducted at the Southern Illinois University at Edwardsville with the cooperation of the Illinois Department of Transportation since late 1987. The use of cement kiln dust, fly ash, and a recycling technique to rebuild the roadway base is one of themethods under investigation. A series of laboratory studies was conducted to develop the mix design for field demonstration. A one-third-mi test road was constructed to evaluate the adequacy of the mix design and the practicality of the construction procedures. The performance of the test road to date is satisfactory. No damage has been detected. It is concluded that cement kiln dust and fly ash could beused successfully for roadway base stabilization, and it is feasible to recycle the existing chip seal surface in the field
Samenvatting