Title

Frost Resistance of High Early-Age Strength Concretes for Rapid Repair

Document Type

Conference Proceeding

Publication Date

1-1-2017

Publication Title

Congress on Technical Advancement 2017: Cold Regions Engineering - Proceedings of the 17th International Conference on Cold Regions Engineering Presented at the 1st Congress on Technical Advancement

Publisher

American Society of Civil Engineers (ASCE)

First page number:

121

Last page number:

131

Abstract

The study presented herein examines frost resistance of different types of high early-age strength concretes made for rapid repair including Type III, Type V, and calcium sulfoaluminate (CSA) cement concretes. To this aim, high early-age strength concretes were made with different cement contents, including 386, 445, 504, and 564 kg/m3 (650, 750, 850, and 950 lb/yd3) for Type V cement concretes; 326, 386, and 445 kg/m3 (550, 650, and 750 lb/yd3) for Type III cement concretes; and 326, and 386 kg/m3 (550 and 650 lb/yd3) for CSA cement concretes. This study also compares frost resistance of different types of high early-age strength concrete for a common cement factor of 386 kg/m3. The results of this study showed that while CSA cement concretes had the fastest strength developments (shortest opening time which is the time to reach a minimum compressive strength of 20 MPa), they had considerably weak frost resistance. Type III and Type V cement concretes exhibited significantly superior frost resistance when compared to CSA cement concrete. The frost resistance reduced as cement content was increased and improved as curing age was extended. © 2017 ASCE.

Language

english


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