Evaluation of Cement Treated Base Courses

摘要

The Louisiana Department of Transportation and Development (DOTD) committed approximately $160 million to its overlay program in the 1999-2000 fiscal year. Many of the roadway projects resurfaced under this program include the stabilization or restabilization of the existing base course with cement. DOTD strives to construct roadways that function adequately for the duration of their projected design life. Many roadways previously constructed with soil cement base courses have experienced excessive shrinkage cracks which have led to premature roadway failures and is aesthetically unappealing to the traveling Public. Often these cracks are filled with a bituminous sealer but many are allowed to remain as is.