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Entrained Air-Void Systems for Durable Highway Concrete

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Laboratory testing and field experience have shown that highway concrete should be properly air entrained to resist the action of freezing and thawing, particularly in wet climates. Several gaps in the state of the knowledge still exist.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 961: Entrained Air-Void Systems for Durable Highway Concrete addresses these gaps and, more specifically, investigates innovative test methods for effectively characterizing the air system in fresh concrete and identifying the characteristics of the air-void system that are related to the performance of field concrete under freeze-thaw conditions.

Appendices A –G provide further details on the different aspects of the research performed for this project.

Appendix A: Test: Matrix for Laboratory Mixtures

Appendix B: Petrographic Analysis Report

Appendix C: Appendix C Data Obtained from Testing Concrete Mixtures Produced in the Laboratory

Appendix D: Appendix D Flatbed Scanner Threshold Optimization Details and Test Results

Appendix E: Clustering Analysis Test Results

Appendix F: Microcomputer Control for AASHTO T 161 “A” Freeze–Thaw

Appendix G: Data Obtained During F-T Testing

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2021. Entrained Air-Void Systems for Durable Highway Concrete. Washington, DC: The National Academies Press. https://doi.org/10.17226/26071.

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80 pages | 8.5 x 11
DOI: https://doi.org/10.17226/26071
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