ASTM C 1778 : 2016 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
17-09-2019
English
01-07-2016
Important note : All end users must be registered with an Account prior to user licenses being assigned.CONTAINED IN VOL. 04.02, 2016 Gives guidance on how to address the potential for deleterious alkali aggregate reaction (AAR) in concrete construction.
| Committee |
C 09
|
| DocumentType |
Redline
|
| Pages |
12
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
1.1This guide provides guidance on how to address the potential for deleterious alkali aggregate reaction (AAR) in concrete construction. This guide addresses the process of identifying both potentially alkali-silica reactive (ASR) and alkali-carbonate reactive (ACR) aggregates through standardized testing procedures and the selection of mitigation options to minimize the risk of expansion when ASR aggregates are used in concrete construction. Mitigation methods for ASR aggregates are selected using either prescriptive or performance-based alternatives. Preventive measures for ACR aggregates are limited to avoidance of use. Because the potential for deleterious reactions depends not only on the concrete mixture but also the in-service exposure, guidance is provided on the type of structures and exposure environments where AAR may be of concern.
1.2Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.3This 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.
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