水泥基自流平砂浆的正交试验研究  

Orthogonal Experimental Study on Cement-based Self-leveling Mortar

作　　者：舒朗 乔欢欢[2] SHU Lang;QIAO Huan-huan(Deyang Jing Ding Building Materials Co.,Ltd.,Deyang,Sichuan,618000,China;Mianyang Polytechnic,Mianyang,Sichuan,621000,China)

机构地区：[1]德阳旌鼎建材有限责任公司,四川德阳618000 [2]绵阳职业技术学院,四川绵阳621000

出　　处：《建材技术与应用》2022年第4期7-11,共5页Research and Application of Building Materials

摘　　要：通过正交试验研究P·O水泥、硫铝酸盐水泥、胶粉和减水剂四个因素对自流平砂浆性能的影响规律,得出用作面层和垫层的水泥基自流平砂浆最优配比。根据最优配比制备的水泥基自流平砂浆与相关标准相比:作为面层时,砂浆初始流动度增加了9 mm,1 d抗折和抗压强度分别增加了115%、37%;作为垫层时,砂浆初始流动度增加了10 mm,1 d抗折和抗压强度分别增加了105%、113%。In this paper,the effects of P·O cement,sulphoaluminate cement,rubber powder and water reducing agent on the properties of self-leveling mortar are studied by orthogonal test,and the optimal ratio of cement-based self-leveling mortar used as surface layer and cushion layer is obtained.Compared with the relevant standards,the cement-based self-leveling mortar prepared according to the optimal ratio increases the initial fluidity of the mortar by 9mm,the 1 d flexural strength and 1 d compressive strength by 115%and 37%respectively when it is used as the surface course,and increases the initial fluidity of the mortar by 10 mm,the 1 d flexural strength and 1 d compressive strength by 105%and 113%respectively when it is used as the bed course.

关 键 词：自流平砂浆 硫铝酸盐水泥 配比 流动度 强度 

分 类 号：TU528.7[建筑科学—建筑技术科学]