Experimental Research on a New-Type Concrete Antifreeze

Abstract:

Basic performance test was performed on a newly-developed compound antifreeze and experiment was carried out to study the basic performance, mechanical property and durability of the concrete mixtures containing 0%, 4% and 5% antifreeze. The result shows the antifreeze may be used for the concrete construction at 20°C below zero and it has favorable performance for winter construction. When the amount to be added is 4% and 5%, the ratio of compressive strength of 28 days shall be 105% and 107% respectively; the ratio of compressive strength of 56 days shall be 114% and 112% respectively. In freeze-thaw cycle experiment, 50 times of freeze-thaw strength loss rate is 45.3% and 44.8% of the strength loss rate of the concrete without the antifreeze. The water-reducing ratio of the antifreeze, ratio of bleeding rate, air content, difference in setting time, strength ratio, ratio of shrinkage, permeated height ratio and other performance indexes all satisfy specification requirements.

• Periodical: Applied Mechanics and Materials (Volumes 148-149)
• Pages: 1209-1213
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.148-149.1209
• Online since: December 2011
• Authors: Bao Min Wang, Kai Song, Ni Tu
• Keywords: Antifreeze, Concrete, Freezing Point, Performance

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