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Research on antifreezing type clay plastics
Author(s): 
Pages: 62-63
Year: Issue:  1
Journal: Refractories

Keyword:  防冻型可塑料冻结可塑性指数;
Abstract: 为了提高可塑料的抗冻结能力,以粒度为6~3、3~1、≤1 mm的焦宝石(w(Al2O3)>45%,w(SiO2)<52%)和粒度≤45μm的黏土(w(Al2O3)>26%,w(SiO2)<65%)为原料,加入硫酸铝溶液、水和乙二醇防冻液制备出防冻型黏土质可塑料.将试样放入零下15℃的试验箱中冷冻,在室温下放置至室温,再经110℃干燥和1 000℃热处理后,分别测试试样的线变化率、抗折强度、耐压强度和体积密度,并与常温20℃下放置的试样的各项性能加以比较.结果表明:试样经过110℃和1 000℃热处理后,普通可塑料试样在零下15℃冻结后的强度比正常未冻结试样的下降约20%,而防冻型可塑料与正常试样相比,在强度方面几乎没有改变.
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