摘要
通过冻融、抗渗和腐蚀试验进行了环保型PVA纤维尾矿砂水泥基复合材料的试验研究。试验表明:材料抗冻融性能好,经65d250次-20^+20℃的冻融循环后,试件的整体性好,质量和弹性模量损失分别为15.4%和14.6%,可适用寒冷地区的工程需要;材料的抗渗性能较好,密实度高,渗透系数为1.749×10^(-4)m/h;具备优异的抗腐蚀能力,经6个月5%不同种类的盐溶液浸泡腐蚀后进行四点抗压和抗弯试验,各性能指标降低率为6%~10%。
Through freeze-thaw test, anti-permeability test, and corrosion test, experiment of environmental PVA tailing cement-based composite materials is studied. The results show that, freeze-thaw resistance of material is good, in- tegrity of specimen is also good under temperature between -20℃ to ＋20℃ after 250 times 65 days, the loss of quality and elastic modulus is respectively 15.4% and 14.6%, which is applied for engineering in cold area, permeability of mate- rials is good, compactness is high, permeability coefficient is 1.749×10-4m/h, corrosion is good, through immersion and cor- rosion, four-point compressive strength test and bending experiment of different t Key words：
出处
《混凝土与水泥制品》
2016年第7期81-84,共4页
China Concrete and Cement Products
基金
国家自然科学基金项目(51279109)
