CGM grout material beauty antifreeze agent selection shall meet the following requirements Cement grouting material composition

CGM grout CGM grout material price CGM grout material factory 1, for - at low temperature 5 ~ 0 ℃, CGM grout material selects the plastic film and thermal insulation material protection cover, can choose early strength beautiful seam an agent or early strength water reducing seam an agent. 2, for - at low temperature 10 ~ - 5℃，- 15 - - 10℃，- 20 ~ - 15 ℃, when choosing the above heating methods, appropriate selection rules temperature for - respectively 10℃，- 15 ℃ antifreeze beautiful seam an agent. 3, anti-freezing seam an agent to the rules of temperature to the CGM grout material beauty antifreeze agent ( JC 475) Test conditions of forming of specimen, temperature under the condition of constant negative temperature protection. A lower temperature than the rules of the construction using low temperature 5 ℃. Gao qiang xian secondary grouting material; Antifreeze seam an agent to the site ( Or CGM grout material batch plant) made by hua-dong works are Should first check whether there is a deposit, crystallization, or lumps. Inspection items should include density, fineness, 7 d and 28 d compressive strength ratio, reinforcement corrosion test. Qualified rear can put in storage and use. Mixed antifreeze beautiful seam an agent used raw materials, grouting materials shall meet the following requirements. 1, appropriate chooses Portland cement, and Portland cement. Cement check period beyond 3 months, before use must be into the strength of cement grouting material density line inspection, qualified rear can use. 2, coarse and fine aggregate shall be shijiazhuang grouting material on which to buy must be clean, shall not contain ice, snow and freezing and frost crack of the material. 3, when aggregate alkali activity, the anti-freezing seam an agent into the beauty of the alkali content, total alkali content, grouting materials should comply with the rules. 4, storage liquid anti-freeze beauty equipment should have heat preservation method of seam an agent. Mixed antifreeze beauty CGM grout material cooperation than seam an agent, should meet the following rules. 1, the antifreeze compounds containing caused the seam an agent grouting material sand ratio, than not to mix with the seam an agent of grouting material sand ratio can be reduced by 2% ~ 3%. 2, CGM grout material water-cement ratio should not exceed 0. 6, cement dosage should not be less than 300 kg/m&sup 3; Important bearing structure, the thin wall structure, dosage of cement grouting material can be increased by 10%, mass less dosage of cement grouting materials shall be according to actual situation. Strength grade is not greater than C15 grouting material, its less water cement ratio and cement dosage can not be bound by this.