Clay-slag-based port seismic strengthening mineral grouting material and preparation method thereof

The invention relates to a grouting material and a preparation method, in particular to a clay slag-based port seismic strengthening mineral grouting material and a preparation method. The clay slag-based port seismic strengthening mineral grouting material includessilty clay and a slag cementitious material, the silty clay comprises (47.7%) ofsilty clay with particle size distribution of less than 0.005mm, (42.9%) of silty clay with particle size distribution of 0.005-0.05mm and (9.4%) of silty clay with particle size distribution of more than 0.05mm, theslag cementitious materials has the plasticity index of 13.5, and comprises 60-70% slag micropowder, 6-10% phosphogypsum, 10-20% a clinker activator, 3-8% an alkali activator, 1.5% a toughening agent, 2-4% an expansion agent, 2-5% an anti-dispersant and 3% a thixotropic agent by mass. The main material source is wider, the cost is lower, the process is simple, the slurry coagulation time can be flexibly controlled, and the anti-seismic reinforcing performanc