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原文传递 Establishment of a Falling Weight Deflectometer Calibration Facility; Final rept. Jul 95-Dec 98

题名：	Establishment of a Falling Weight Deflectometer Calibration Facility; Final rept. Jul 95-Dec 98
作者：	Hossain, M.
关键词：	Pavement deflections; Calibration; Pavements; Test methods; Nondestructive tests; Load cells; Checklists
摘要：	The Strategic Highway Research Program (SHRP) developed a protocol for calibration of Falling Weight Deflectometers (FWD) which is now being administered by the Long Term Pavement Performance (LTPP) Division of the Federal Highway Administration (FHWA). The calibration procedure for FWD's recommended by SHRP consists of two parts: (1) Reference Calibration, and (2) Relative Calibration. Reference calibration requires permanent facilities similar to those established by LTPP in Reno, Nev., Harrisburg, Penn., Minneapolis, Minn., and College Station, Tex. Relative calibration can be performed almost anywhere, using equipment provided by the FWD manufacturer. Since the center closest to Kansas is in Minneapolis, and considerable time is required for travel and calibration (usually a week), a local facility was considered to be very beneficial by the Kansas Department of Transportation. The FWD Reference Calibration facility, for the Dynatest model FWD, has been developed at Kansas State University and is available for calibration of FWD's in the surrounding area. The facility was established in accordance with the SHRP/LTPP FWD calibration protocol. The calibration center became operational in the spring of 1998. An independent quality assurance visit by PCS/LAW Engineering of Beltsville, Maryland has confirmed that the equipment and setup are working correctly.
总页数：	60p
报告类型：	科技报告