Self-compacting cementing material based on powder quartz physical modification and preparation method thereof

The invention discloses a self-compacting cementing material based on powder quartz physical modification and a preparation method thereof, and belongs to the technical field of self-compacting concrete. The self-compacting cementing material contains water, broken stones, medium sand, cement, modified powder quartz, fly ash, a water reducing agent and a coupling agent. According to the preparation method, the activity of the powder quartz is improved by modifying the powder quartz, and the fluidity and the expansibility of the self-compacting cementing material can be remarkably improved andthe strength of the self-compacting cementing material is improved by adding the modified powder quartz into the self-compacting cementing material. 本发明公开了一种基于粉石英物理改性的自密实胶凝材料及制备方法，属于自密实混凝土技术领域，自密实胶凝材料含有水、碎石、中砂、水泥、改性粉石英、粉煤灰、减水剂、偶联剂。本发明通过对粉石英进行改性，提高了粉石英的活性，添加到自密实胶凝材料中，能显著的增加了自密实胶凝材料的流动性和扩展度，提高了其强度。