摘要
通过室内冻融循环试验,对无机结合料稳定铁尾矿砂的抗冻融耐久性进行了试验研究。得到了失重率和残留强度比随冻融循环次数的变化规律,并与石灰土的结果进行了比较。结果表明:随冻融循环次数的增加,四种混合料的质量损失逐渐增加,残留强度比逐渐减小,但是变化的速度却相差很大。由此说明,无机结合料稳定铁尾矿砂的抗冻融耐久性远远好于石灰土,其中水泥稳定铁尾矿砂的抗冻融性能较为突出。
Durability of freezing-thawing resistance of inorganic binders stabilized iron tailings with the optimal ratio were studied by indoor test. The variation of weightlessness rate and tensile strength ratio with freezing-thawing cycles were obtained. The comparisons to that of soil-lime were also made. It shows that the mass losses of the four mixture were increasing as the same time tensile strength ratio was decreasing gradually with freeze-thaw cycles, but the pace of the variations of the four mixtures was a great deal of difference. It verifies that durability of freezing-thawing resistance of inorganic binders stabilized iron tailings is much better than that of soil-lime; durability of freezing-thawing resistance of cement stabilized iron tailings stands out among the four mixtures.
出处
《低温建筑技术》
2010年第1期8-10,共3页
Low Temperature Architecture Technology
关键词
道路工程
冻融循环耐久性
铁尾矿砂
无机结合料
road engineering
din-ability of freezing-thawing cycles
iron railings
inorganic binders
