JT/T 120-2008: Benkelman beam pavement deflectometer

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Scope

This standard specifies the product model, structure, technical requirements,
testing methods, inspection rules, marking, packaging, transportation, storage
of the Benkelman beam pavement deflectometer.
For the Benkelman beam pavement deflectometer, which is specified in this
standard, it is suitable for testing the total deflection or rebound deflection,
deflection basin, modulus of deflection of the subgrade, base layer, pavement
of the flexible pavement structure and semi-rigid pavement structure, of
different levels. It is also suitable for testing the load transfer capacity between
rigid pavement slabs.

Basic Data

Standard ID	JT/T 120-2008 (JT/T120-2008)
Description (Translated English)	Benkelman beam pavement deflectometer
Sector / Industry	Highway and Transportation Industry Standard (Recommended)
Classification of Chinese Standard	P96
Classification of International Standard	93.080.99
Word Count Estimation	12,180
Date of Issue	2008-06-02
Date of Implementation	2008-10-01
Older Standard (superseded by this standard)	JT/T 120-1993; JT/T 121-1993
Quoted Standard	Ministry of Transport Notice No. 9 of 2008
Regulation (derived from)	?Ministry of Transport Announcement 2008 No.9
Issuing agency(ies)	Ministry of Transport
Summary	This standard specifies the Beckman Beam pavement deflectometer product model, structure, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard specifies the Beckman Beam pavement deflectometer flexible pavement structure applicable to all levels, semi- rigid pavement subgrade, the grassroots and the total surface deflection or rebound deflection, deflection basin and resilient modulus testing, for rigid pavement load transfer between the tests.