Standard Historical Last Updated: Nov 19, 2012 Track Document
ASTM D4580-03(2007)

Standard Practice for Measuring Delaminations in Concrete Bridge Decks by Sounding

Standard Practice for Measuring Delaminations in Concrete Bridge Decks by Sounding D4580-03R07 ASTM|D4580-03R07|en-US Standard Practice for Measuring Delaminations in Concrete Bridge Decks by Sounding Standard new BOS Vol. 04.03 Committee D04
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Significance and Use

This practice may be used in conjunction with other methods in determining the general condition of concrete bridge decks.

This practice may be used in determining specific areas of delamination requiring repair.

Scope

1.1 This practice covers procedures for surveying concrete bridge decks by sounding to determine delaminations in the concrete. It is not intended that the procedures described herein are to be used on bridge decks that have been overlaid with bituminous mixtures. The procedures may be used on bridge decks that have been overlaid with portland cement concrete mixtures; however, areas indicated to be delaminated may have a lack of bond between the overlay and the underlying bridge deck (Note 1).

Note 1—The influence of variable field conditions such as traffic noise, vibration, moisture content of the concrete, and the like, are not completely known and additional investigation may be needed. It is generally agreed that the practice should not be used on frozen concrete.

1.2 The following three procedures are covered in this practice:

1.2.1 Procedure A, Electro-Mechanical Sounding DeviceThis procedure uses an electric powered tapping device, sonic receiver, and recorder mounted on a cart. The cart is pushed across the bridge deck and delaminations are recorded on the recorder.

1.2.2 Procedure B, Chain DragThis procedure consists of dragging a chain over the bridge deck surface. The detection of delaminations is accomplished by the operator noting dull or hollow sounds. Tapping the bridge deck surface with a steel rod or hammer may be substituted for the chain drag.

1.2.3 Procedure C, Rotary PercussionThis procedure consists of rolling a dual-wheel, multi-toothed apparatus attached to an extension pole over the bridge deck surface. The percussive force caused by the tapping wheels will create either a dull or hollow sound indicating any delamination.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 04.03
Developed by Subcommittee: D04.32
Pages: 4
DOI: 10.1520/D4580-03R07
ICS Code: 93.040