提高无机矿物聚合物混凝土抗冻性的试验研究

Experimental study on improving frost resistance of geopolymer concrete

无机矿物聚合物混凝土作为一类新型无机非金属材料,因其凝结时间快、强度高、耐高温及化学稳定性好,在道路工程、固化重金属离子及修补工程应用前景广泛。经试验研究,无机矿物聚合物混凝土抗冻性较差,难以应用于北方寒冷地区,故通过掺加PVA纤维及引气剂,确定提高其抗冻性的最佳方法。

Geopolymer concerte as a new type of inorganic nonmetallic material,because of its fast setting time,high strength,high temperature resistance and good chemical stability,geopolymer concerte has a wide application prospect in road engineering,curing heavy metal ions and repair engineering. According to the experimental study,the geopolymer concerte has poor frost resistance. So it is difficult to be applied in cold areas. Therefore,this paper studys on the best method to improve its frost resistance by adding PVA fiber and air-entraining agent.