期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：153
期号：2
页码：022021
DOI：10.1088/1755-1315/153/2/022021
语种：English
出版社：IOP Publishing
摘要：Styrene-acrylic cement composite (SACC) is prepared by using styrene-acrylic emulsion, cement, etc. The change rules of tensile strain-stress curve, tensile strength and tensile modulus under the three factors: liquid to powder ratio, cement ratio and packing type were investigated through the method of orthogonal experiment. The results show that liquid to powder ratio is the main factor influencing the strength characteristics of SACC. With the increase of liquid to powder ratio, the flexibility of SACC is gradually enhanced. With the decrease of liquid to powder ratio, tensile strength and tensile modulus is increased. When the liquid to powder ratio is at 1:0.85, with the increase of cement ratio, peak stress and strain before the peak of the tensile strain-stress curve is increased. Tensile strength and tensile modulus have an increased tendency with the increasing of cement ratio. Compared with heavy calcium carbonate and quartz flour, talcum powder has a stronger effect on the tensile strength and tensile modulus of SACC The influence of liquid to powder ratio, cement ratio and packing type to SACC is arranged as: liquid powder ratio, packing type, cement ratio. Polymer cement composite with average polymer-cement ratio used for joint sealing materials is feasible.
