A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of mining, and particularly relates to aluminate cement-based jet mortar and a preparation method thereof. The jet mortar is composed of a binding material, a composite additive, sand and water according to the weight ratio of 1: (0.03-0.06): (1.5-3.0): (0.40-0.50). The cementing material is prepared from the following raw materials in parts by weight: 20-40 parts of aluminate cement, 20-40 parts of Portland cement, 10-30 parts of slag powder and 10-30 parts of gypsum; the composite admixture is prepared from the following raw materials in parts by weight: 20-40 parts of a water reducing agent, 10-30 parts of slaked lime, 10-30 parts of sodium carbonate, 10-30 parts of anhydrous sodium sulphate and 5-10 parts of redispersible latex powder. The jet mortar has the characteristics of high setting and hardening speed, high early strength, micro-expansion and the like, and is suitable for engineering application.
本发明属于矿山开采技术领域，具体涉及一种铝酸盐水泥基喷射砂浆及其制备方法。所述喷射砂浆由胶凝材料、复合外加剂、砂、水按重量比1∶(0.03～0.06)∶(1.5～3.0)∶(0.40～0.50)组成；其中：胶凝材料由以下重量份的原料组成：铝酸盐水泥20～40份，硅酸盐水泥20～40份，矿渣粉10～30份，石膏10～30份；复合外加剂由以下重量份的原料组成：减水剂20～40份，熟石灰10～30份，碳酸钠10～30份，元明粉10～30份，可再分散性乳胶粉5～10份。本发明的喷射砂浆具有凝结硬化速度快、早期强度高、微膨胀等特点，适宜工程应用。
The invention belongs to the technical field of mining, and particularly relates to aluminate cement-based jet mortar and a preparation method thereof. The jet mortar is composed of a binding material, a composite additive, sand and water according to the weight ratio of 1: (0.03-0.06): (1.5-3.0): (0.40-0.50). The cementing material is prepared from the following raw materials in parts by weight: 20-40 parts of aluminate cement, 20-40 parts of Portland cement, 10-30 parts of slag powder and 10-30 parts of gypsum; the composite admixture is prepared from the following raw materials in parts by weight: 20-40 parts of a water reducing agent, 10-30 parts of slaked lime, 10-30 parts of sodium carbonate, 10-30 parts of anhydrous sodium sulphate and 5-10 parts of redispersible latex powder. The jet mortar has the characteristics of high setting and hardening speed, high early strength, micro-expansion and the like, and is suitable for engineering application.
本发明属于矿山开采技术领域，具体涉及一种铝酸盐水泥基喷射砂浆及其制备方法。所述喷射砂浆由胶凝材料、复合外加剂、砂、水按重量比1∶(0.03～0.06)∶(1.5～3.0)∶(0.40～0.50)组成；其中：胶凝材料由以下重量份的原料组成：铝酸盐水泥20～40份，硅酸盐水泥20～40份，矿渣粉10～30份，石膏10～30份；复合外加剂由以下重量份的原料组成：减水剂20～40份，熟石灰10～30份，碳酸钠10～30份，元明粉10～30份，可再分散性乳胶粉5～10份。本发明的喷射砂浆具有凝结硬化速度快、早期强度高、微膨胀等特点，适宜工程应用。
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