ASTM C1778-20
Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- Standard No.
- ASTM C1778-20
- Release Date
- 2020
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM C1778-22
- Latest
- ASTM C1778-23
- Scope
- 1.1 This 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. 1.2 Units—The values stated in either SI units or inchpound 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. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM C1778-20 Referenced Document
- ASTM C1105 Standard Test Method for Length Change of Concrete Due to Alkali-Carbonate Rock Reaction
- ASTM C114 Standard Test Methods for Chemical Analysis of Hydraulic Cement
- ASTM C1157/C1157M Standard Performance Specification for Hydraulic Cement
- ASTM C1240 Standard Specification for Silica Fume Used in Cementitious Mixtures
- ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates
- ASTM C1260 Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
- ASTM C1293 Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction
- ASTM C150/C150M Standard Specification for Portland Cement
- ASTM C1567 Standard Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)
- ASTM C219 Standard Terminology Relating to Hydraulic and Other Inorganic Cements
- ASTM C294 Standard Descriptive Nonmenclature for Constituents of Concrete Aggregates
- ASTM C295/C295M Standard Guide for Petrographic Examination of Aggregates for Concrete
- ASTM C311/C311M Standard Test Methods for Sampling and Testing Coal Ash or Natural Pozzolans for Use in Concrete
- ASTM C33/C33M Standard Specification for Concrete Aggregates
- ASTM C586 Standard Test Method for Potential Alkali Reactivity of Carbonate Rocks for Concrete Aggregates (Rock Cylinder Method)
- ASTM C595/C595M Standard Specification for Blended Hydraulic Cements
- ASTM C618 Standard Specification for Fly Ash And Raw Or Calcined Natural Pozzolan For Use As A Mineral Admixture In Portland Cement Concrete
- ASTM C823/C823M Standard Practice for Examination and Sampling of Hardened
Concrete in Constructions - ASTM C856 Standard Practice for Petrographic Examination of Hardened Concrete
- ASTM C989/C989M Standard Specification for Slag Cement for Use in Concrete and Mortars
ASTM C1778-20 history
- 2023 ASTM C1778-23 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2022 ASTM C1778-22 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2020 ASTM C1778-20 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2019 ASTM C1778-19b Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2019 ASTM C1778-19a Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2019 ASTM C1778-19 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2016 ASTM C1778-16 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
- 2014 ASTM C1778-14 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
