Yang Qian, Xu Junxiang, Ju Yiheng, Lu Dewang, Meng Wei, Wu Jing, Zhang Xuefu
The Fourth Engineering Co., Ltd. of CCCC First Highway Engineering Co., Ltd., Nanning 530031, China.
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
Materials (Basel). 2024 Aug 6;17(16):3888. doi: 10.3390/ma17163888.
The corrosion resistance of cement-water-glass dual-liquid slurry is poor. Improving its material properties is necessary. In this study, we examined the influence of water-based lotions on the fluidity, gelling time, and mechanical properties of a cement-water-glass dual-liquid slurry based on the mix proportion of the dual-liquid slurry commonly used in construction. The mixture ratio of a C-S (cement-water-glass slurry) dual-liquid slurry was adjusted by introducing a waterborne polyurethane lotion and a waterborne acrylic lotion to modify the traditional C-S dual-liquid slurry material. When acrylic acid is used as a modifying polymer at a dosage of 7.5%, the flowability and gelation time of the dual-liquid slurry are excellent, the compressive strength of the stone body decreases slightly, the flexural strength is improved to a certain extent, and the stone body's crack resistance during water loss is also enhanced. Moreover, the porosity of the stone body is low.
水泥-水玻璃双液浆的耐腐蚀性较差,有必要改善其材料性能。在本研究中,基于建筑中常用双液浆的配合比,我们研究了水性乳液对水泥-水玻璃双液浆的流动性、胶凝时间和力学性能的影响。通过引入水性聚氨酯乳液和水性丙烯酸乳液来调整C-S(水泥-水玻璃浆)双液浆的混合比例,以改性传统的C-S双液浆材料。当丙烯酸作为改性聚合物的用量为7.5%时,双液浆的流动性和胶凝时间优异,结石体的抗压强度略有下降,抗折强度有一定程度提高,结石体失水过程中的抗裂性也得到增强。此外,结石体的孔隙率较低。