Water glass curing agent and preparation method and application thereof

The invention provides a water glass curing agent and a preparation method and application thereof. The water glass curing agent comprises aluminum phosphate, zinc oxide modified shell powder, powderysilicic acid/silica fume and barium sulfate according to a mass ratio of aluminum phosphate to zinc oxide modified shell powder of (4-7): (1-2), a mass ratio of aluminum phosphate to powdery silicicacid/silica fume of 7: (1-2) and a mass ratio of aluminum phosphate to barium sulfate of (4-7): (0.5-1). Through loading and sintering, the novel water glass curing agent is prepared. The preparationmethod realizes initial control of a curing speed of water glass and improves the water resistance and toughness after curing. 本发明提供种水玻璃固化剂及其制备方法与应用，包括磷酸铝、氧化锌改性贝壳粉、粉末硅酸/硅灰、硫酸钡，所述磷酸铝与氧化锌改性贝壳粉的质量比为(4-7):(1-2)，所述磷酸铝与粉末硅酸/硅灰的质量比为7:(1-2)，所述磷酸铝与硫酸钡的质量比为(4-7):(0.5-1)。本发明的技术方案通过负载、烧结等手段，制备了新型的水玻璃固化剂，实现初步控制水玻璃的固化速度，并提高固化后的耐水性能和韧性。