01088456

Component

In 2000, the Virginia Department of Transportation’s (VDOT) Chief Engineer asked the Virginia Transportation Research Council to develop a vision of how and when VDOT would have a working end-result specification for hot-mix asphalt (HMA). The response to that question was that it would take several years and many steps to achieve. This report discusses the next step in that ongoing effort, which includes the development and simulated application of a statistical quality assurance (SQA) special provision for acceptance of asphalt concrete pavement. The criteria for this prototype SQA provision included the application of standard national terminology and approach, a firm basis in existing VDOT specifications, and quality characteristics that represent the best practical performance measures. This paper describes the outcome of a “shadow” application of a proposed SQA specification for HMA field properties to a subset of Virginia’s annual maintenance-resurfacing projects. Although the involved placement activities were not subject to the requirements of the SQA specifications, the sampling and testing were designed to represent what would have been required had the special provisions been in effect. The study further determined the likely acceptance outcome for each shadow project and explored future modifications to specification limits and pay adjustment criteria.

01084478

08-1483

English

12p

2008

Transportation Research Board 87th Annual Meeting

DVD

Figures (2) ; References (18) ; Tables (7)

Acceptance tests; Best practices; Concrete pavements; Hot mix asphalt; Prototypes; Quality assurance; Specifications

Virginia

Bridges and other structures; Construction; Highways; I52: Construction of Pavements and Surfacings

Transportation Research Board Annual Meeting 2008 Paper #08-1483

TRIS, TRB

Jan 29 2008 3:50PM