01625822

Component

Roller-compacted concrete (RCC) is a stiff hydraulic cement concrete mixture that, unlike conventional concrete, is compacted with a roller rather than by mechanical internal and external vibration. It is a mixture of aggregate, cementitious materials, and water and exhibits zero slump. RCC has the same basic ingredients as conventional concrete and has similar hardened concrete properties. For pavements, RCC is typically placed with asphalt paving equipment in 6 to 8-inch thicknesses. RCC is desirable because of its low-cost, rapid construction, satisfactory early and ultimate strengths, and durable performance. The Virginia Department of Transportation (VDOT) has been investigating RCC for inclusion as an option in its pavement program. This investigation included a literature survey and laboratory study that led to the development of a special provision for the use of RCC in pavements. Subsequently, the special provision was implemented in two field projects. The initial performance of both field projects was satisfactory. Thus, the special provision for use of RCC developed in this study was workable and it is planned to be incorporated as a standard provision in VDOT’s "Road and Bridge Specifications" with minor modifications. This paper summarizes the research that led to the development of VDOT’s RCC specification.

This paper was sponsored by TRB committee AFH50 Standing Committee on Concrete Pavement Construction and Rehabilitation.

01618707

17-05298

English

12p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References

Field tests; Laboratory tests; Literature reviews; Mix design; Roller compacted concrete; Roller compacted concrete pavements; Specifications

Virginia Department of Transportation

Virginia

Design; Highways; Materials; Pavements

Transportation Research Board Annual Meeting 2017 Paper #17-05298

PRP, TRIS, TRB, ATRI

Dec 8 2016 12:05PM