ASTM-D4694 2009

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D4694-09 Standard Test Method for Deflections with a Falling-Weight-Type Impulse Load Device

Published By	Publication Date	Number of Pages
ASTM	2009	3

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Category: ASTM

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Description

ASTM D4694-09

Historical Standard: Standard Test Method for Deflections with a Falling-Weight-Type Impulse Load Device

ASTM D4694

Scope

1.1 This test method covers the measurement of deflections of paved and unpaved surfaces with a falling-weight-type impulse load device. These devices are commonly referred to as falling weight deflectometers or FWDs.

1.2 This test method describes the measurement of vertical deflection response of the surface to an impulse load applied to the pavement surface. Vertical deflections are measured on the load axis and at points spaced radially outward from the load axis.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A specific hazard statement is given in Section 6.

Keywords

deflection surveys; deflection testing; falling weight deflectometer (FWD); impulse deflection testing device; load/deflection testing; nondestructive testing (NDT); pavement deflection; pavement testing; Transducers; Deflection–pavement surfaces/applications; Falling weight deflectometer (FWD); Force pulse; Impulse deflection testing device; Loading tests–pavement surfaces; Nondestructive evaluation (NDE); Pavement deflection; Pavement surfaces; Plate bearing test

ICS Code

ICS Number Code n/a

DOI: 10.1520/D4694-09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Summary of Test Method Significance and Use Apparatus
2	Hazards Calibration
3	Signal Conditioning and Recorder System Procedure Precision and Bias Keywords

Additional information

Standard Title	D4694-09 Standard Test Method for Deflections with a Falling-Weight-Type Impulse Load Device
Published Code	ASTM
Publication Date	2009
Pages Count	3