Various types of Portland cement concrete used in pavement and dam constructions

This article presents a study on two very common types of Portland cement concrete; (a) zero slump concrete or roller compacted concrete ( RCC) and (b) usual conventional concrete. The study discusses the similarities and differences between this two types of cement concrete when used for pavement as well as used for dam constructions. The article also describes different steps to make or produce Portland cement concrete, and list of laboratory and field tests for the quality control (QC) of both types of concrete is also provided.The article contains various subjects on both types of cement concrete including; common laboratory and field tests before and after concrete is produced, a general view of what the RCC is, a brief discussion on selection of concrete mix proportion (mix design), performance of roller-compacted concrete pavement (RCCP), mixing and placing of RCCP in cold and hot weather, curing procedures for roller-compacted concrete followed by dam construction using RCC technique. Also, it discusses factors affecting the construction of pavement using RCC over conventional type of concrete in-regard to economical advantage, ease of production, construction, and speed of operation, as well as its low maintenance.

Keywords:

roller-compacted concrete , slump , mix design , strength , durability