Roller Compacted Concrete over Soil Cement under Accelerated Loading : Research Project Capsule

Research project capsule,PDFBooklet/Pamphlet12-7PRoller compacted concreteRoller compacted concrete pavementsSoil cementAccelerated testsLoad testsLouisianaLouisiana Transportation Research CenterWu, ZhongLouisiana State University (Baton Rouge, La.)Louisiana. Dept. of Transportation and DevelopmentNTL-HIGHWAY/ROAD TRANSPORTATION-MaterialsNTL-HIGHWAY/ROAD TRANSPORTATION-Soils and GeologyUS Transportation CollectionRoller compacted concrete (RCC) is a stiff , zero-slump concrete mixture placed with modifi edasphalt paving equipment and compacted by vibratory rollers. Properly designed RCC mixescan achieve outstanding compressive strengths similar to those of conventional concretedespite low cement content. On the other hand, the cost per square yard of RCC is onlyabout 60 percent of the cost for conventional Portland cement concrete pavement. RCC hastraditionally been used for pavements carrying heavy loads in low-speed areas due to itsrelatively coarse surface. With improved paving and compaction methods as well as surfacetexturing techniques, recent applications of RCC have been found for interstate highwayshoulders, city streets, and other highways