Sampling and testing for chloride ion in concrete

Clear, Kenneth C.; Harrigan, Edward T.

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Sampling and testing for chloride ion in concrete

1977-08-01
By Clear, Kenneth C. ; Harrigan, Edward T.

File Language:

English

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Creators:

Clear, Kenneth C. ; Harrigan, Edward T.
Corporate Creators:

United States. Department of Transportation. Federal Highway Administration. Office of Research and Development
Subject/TRT Terms:

Bridge Decks Bridges, Concrete - Design And Construction Bridges, Concrete - Floors Chemical Tests Chlorides Chlorine Content Concrete - Deterioration Corrosion Structures
Publication/ Report Number:

FHWA-RD-77-85
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Interim report
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration. Offices of Research and Development
Abstract:

One of the most severe problems facing the highway community is chloride ion-induced reinforcing steel corrosion and the subsequent deterioration of concrete bridge decks and marine structures. This report presents recommended methods for sampling and testing for both total and water-soluble chloride ion in hardened concrete. The methods are updated and expanded revisions of the earlier procedure developed by FHWA and contained in report FHWA-RD-72-12, "Determination of Chloride in Hardened Portland Cement Paste, Mortar and Concrete" by H. A. Berman and report FHWA-RD-74-5, "Evaluation of Portland Cement Concrete for Permanent Bridge Deck Repair." Alternate procedures for sampling the hardened concrete with either a core drill or a rotary impact drill are included. In addition, two alternate methods of chemical analysis are presented, the original potentiometric titration method and a significantly more rapid method employing the Gran endpoint determination procedure. Both are compatible with either chloride or silver ion-selective electrodes.
Format:

PDF
Collection(s):

Federal Highway Administration US Transportation Collection
Main Document Checksum:

urn:sha-512:50f4d8f7575874dc258e3c946df557f0ae7ebfcb7cfec0fb97d0c6d528f06ac15ee770f7f53f2592bf4991084ee71ca2475e953ed8247e2d108aede6b8b40622
Download URL:

https://rosap.ntl.bts.gov/view/dot/16463/dot_16463_DS1.pdf
File Type:

[PDF - 11.65 MB ]

File Language:

English

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