Composite material for sand solidification and preparation method and application thereof

The invention provides a composite material for sand solidification as well as a preparation method and a use method thereof, and relates to the technical field of quick sand solidification material formulas and related processes. The curing material is prepared by taking the PC425 cement, the clay (montmorillonite) and the concrete accelerator as raw materials, and the preparation formula and the curing process are simple, convenient and efficient. When the curing material is used for sand curing, the specific sand can be controllably and rapidly cured, formed and carried within 0.5-3 min and stacked for a long time within 1 d, the integrity and strength of the sand are improved, and the curing material is suitable for solving emergency engineering problems such as rescue and relief work and pavement repair. 本发明提供了一种砂土固化用复合材料及其制备方法和使用方法，涉及砂土快速固化材料配方及相关工艺技术领域。本发明以PC425水泥、黏土(蒙脱土)、混凝土速凝剂为原料制备固化材料，制备配方和固化工艺简便高效。采用本发明的固化材料进行砂土固化，可实现特定砂土在0.5-3min内可控快速固化成型、搬运，1d内长期堆放，提高砂土完整性及强度，适用于解决抢险救灾、路面修复等紧急工程问题。