摘要
采用正交设计,利用硅灰、普通硅酸盐水泥、减水剂、砂和抗裂防水剂配制高流动度的地面自流平材料。试验结果表明:28d抗折强度和抗压强度可达15.6MPa、84.3MPa,满足水泥基自流平砂浆的要求;28d膨胀率为+0.033%,属于微膨胀,可避免因收缩引起的表面裂纹。
Adopting orthogonal design, we made use of silica fume, Portland cement, water reducer, sand and bloating agent to produce a self- leveling material. The results of the experiment show a flexural and compressive strength of 5.6MPa and 84.3MPa respectively at 28d, which meets the requirement for the self- leveling material; and a dimension diversification ratio of 0.033%, which is small enough to avoid cracking due to drying shrinkage.
出处
《石家庄铁道学院学报》
2005年第3期84-86,共3页
Journal of Shijiazhuang Railway Institute
关键词
正交设计
地面自流平材料
硅灰
orthogonal design
self- leveling material
silica fume
