Interface joint material based on industrial solid waste and its preparation

An interface joint material based on industrial solid waste, comprising raw materials in parts by weight as follows:

• portland slag cement, 80˜130 parts,
• metakaolin, 80˜130 parts,
• the industrial solid waste, 80˜130 parts,
• sodium silicate, 25˜35 parts,
• alkali, 8˜12 parts,
• acrylate, 30˜36 parts,
• a trivinyl ether compound, 1˜3 parts,
• inorganic sulfite, 1˜3 parts,
• persulfate, 1˜3 parts,
• a water reducing agent, 3˜6 parts, and
• water, 60˜80 parts;
• wherein the industrial solid waste is a mixture with a mass ratio of slag:a thermal power plant discharged material:fly ash being 30:30:40, and the thermal power plant discharged material contains silicon oxide, aluminum oxide and iron oxide;
• wherein the alkali is one of sodium hydroxide and potassium hydroxide;
• and the acrylate is a mixture of magnesium acrylate and calcium acrylate with a mass ratio of 5:1;
• wherein the trivinyl ether compound is one of trivinyl cyanate and trihydroxypropane trivinyl ether;
• wherein the inorganic sulfite is one of sodium sulfite and potassium sulfite;
• wherein the persulfate is one of potassium persulfate and sodium persulfate;
• and
• wherein a method for preparing the interface joint material comprises following steps:
• step 1, weighing the portland slag cement, the metakaolin, the industrial solid waste, the water reducing agent, the acrylate, the trivinyl ether compound and the inorganic sulfite in the parts by weight, and mixing evenly to obtain a mixture A;
• step 2, weighing the sodium silicate, the alkali and one-half of the water in the parts by weight to obtain a mixture B, and adding the mixture B to the mixture A to obtain a mixture C;
• and
• step 3, weighing the persulfate and the remaining water to obtain a mixture D and adding the mixture D into the mixture C, and mixing evenly to obtain the interface joint material based on the industrial solid waste.