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ASTM C 1383 Document Information:
Title
Standard Test Method for Measuring the P-Wave Speed and the Thickness of Concrete Plates Using the Impact-Echo Method
ASTM International
Publication Date:
Jun 1, 2004
Scope:
(Footnote *)
This test method covers procedures for determining the thickness of concrete slabs, pavements,
bridge decks, walls, or other plate-like structure using the impact-echo method.
The following two procedures are covered in this test method:
Procedure A: P-Wave Speed Measurement - This procedure measures the time it takes for the P-wave
generated by a short-duration, point impact to travel between two transducers positioned a known
distance apart along the surface of a structure. The P-wave speed is calculated by dividing the
distance between the two transducers by the travel time.
Procedure B: Impact-Echo Test - This procedure measures the frequency at which the P-wave generated
by a short-duration, point impact is reflected between the parallel (opposite) surfaces of a plate.
The thickness is calculated from this measured frequency and the P-wave speed obtained from
Procedure A.
Unless specified otherwise, both Procedure A and Procedure B must be performed at each point where
a thickness determination is made.
The values stated in SI units are to be regarded as the standard.
The text of this standard references notes and footnotes that provide explanatory material. These
notes and footnotes (excluding those in tables and figures) shall not be considered as requirements
of the standard.
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.
Footnote * - A Summary of Changes section appears at the end of this standard.
Keywords:
- concrete plate
- impact-echo
- nondestructive testing
- P-wave speed
- thickness measurement
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