Experimental Research on a New-type Concrete Antifreeze
Basic performance test was performed on a newlydeveloped 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 freezethaw 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.
antifreeze freezing point concrete performance
Baomin Wang Kai Song Ni Tu
School of Civil Engineering, Dalian University of Technology, China
国际会议
大连
英文
1209-1213
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）