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Title:

PROTOCOL FOR SELECTING ALKALI-SILICA REACTION (ASR)-AFFECTED STRUCTURES FOR LITHIUM TREATMENT
Cover of PROTOCOL FOR SELECTING ALKALI-SILICA REACTION (ASR)-AFFECTED STRUCTURES FOR LITHIUM TREATMENT

Accession Number:

00978467

Record Type:

Monograph

Availability:

National Technical Information Service

5301 Shawnee Road
Alexandria, VA 22312 USA

Abstract:

This document describes a protocol for evaluating damaged structures to determine whether they are suitable candidates for lithium treatment to address alkali-silica reaction (ASR). A major part of this report deals with the approach/tools that can be used to determine whether ASR is the principal cause or only a contributing factor to the observed deterioration (diagnosis), determine the extent of deterioration due to ASR in the structure, and evaluate the potential for future expansion due to ASR (prognosis). Finally, the report lists items to be included in the proposal that will be submitted for the selection of structures for lithium treatment. Guidelines on evaluating and managing structures affected by ASR have been published by the Canadian Standards Association (CSA). Pictures of field symptoms and petrographic features of ASR can be found in the documents from CSA, the British Cement Association, the American Concrete Institute, Stark, and Farny and Kosmatka. More recently, Folliard and Kurtis summarized such features as part of the Federal Highway Administration workshop material "Guidelines for the Use of Lithium to Mitigate or Prevent ASR in Concrete."

Report/Paper Numbers:

FHWA-HRT-04-113

Contract Numbers:

DTFH61-02-C-00051

Language:

English

Corporate Authors:

Transtec Group, Incorporated

6111 Balcones Drive
Austin, TX 78731 USA

Federal Highway Administration

Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
McLean, VA 22101 USA

Authors:

Thomas, MDA
Fournier, Benoit
Folliard, K J

Pagination:

23 p.

Publication Date:

2004-8

Features:

References (10) ; Tables (3)

Subject Areas:

Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete

Files:

TRIS, USDOT

Created Date:

Sep 15 2004 12:00AM