Roller Compacted Concrete: Field Evaluation and Mixture

摘要

Roller Compacted Concrete (RCC) as an economical, fast construction and sustainable materials has attracted increasing attention for pavement construction. The growth of roller-compacted concrete pavement used in different regions is impeded by concerns regarding its compatibility with domestic materials, environmental conditions and local restrictions. This report addresses the short-term and ong-term performance of RCC made with materials locally available in the state of Missouri. The Report also provides a comprehensive review on the current practices and recent developments in material selection and aggregate gradation and mixture design methods. The research project involved an extensive sampling and testing carried out to evaluate fresh and mechanical properties as well as shrinkage and key durability characteristics of the RCC used for widening Route 160 near Doniphan. The results of compressive strength, modulus of elasticity, splitting tensile strength, and flexural strength of the concrete mixtures used for the pavement of route 160 are presented and discussed. In-situ compressive strength and relative bond strength were also determined on the cores taken from the pavement.