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A platform for research: civil engineering, architecture and urbanism
Pasty admixture with reinforcing and slump retaining functions as well as preparation method and application of pasty admixture
The invention discloses a pasty admixture with reinforcing and slump retaining functions as well as a preparation method and application of the pasty admixture. Zeolite and water are used as main raw materials, and under the action of a polymerization precursor, ammonium persulfate and a grinding aid, the slurry admixture with the reinforcing and slump retaining functions is prepared through a wet grinding process and an in-situ polymerization method. When 5-10% of the pasty admixture with the reinforcing and slump retaining functions is used for cement concrete, the fluidity of neat cement paste is increased by 30% within 1 h and increased by 20% within 2 h, and no loss is caused within 3 h; the 1d compressive strength is improved by 5%, and the 28d compressive strength is not reduced.
本发明公开了一种具有增强与保坍功能浆状掺合料及其制备方法和应用。本发明以沸石、水为主要原料，在聚合前驱体、过硫酸铵与助磨剂的作用下，通过湿磨工艺和原位聚合法制备出具有增强与保坍功能的浆状掺合料。当将本发明制得的具有增强与保坍功能浆状掺合料以5％‑10％的掺量用于水泥混凝土时，水泥净浆1h流动度增加30％，2h增加20％，3h无损失；1d抗压强度提高5％，28d抗压强度不降低。
Pasty admixture with reinforcing and slump retaining functions as well as preparation method and application of pasty admixture
The invention discloses a pasty admixture with reinforcing and slump retaining functions as well as a preparation method and application of the pasty admixture. Zeolite and water are used as main raw materials, and under the action of a polymerization precursor, ammonium persulfate and a grinding aid, the slurry admixture with the reinforcing and slump retaining functions is prepared through a wet grinding process and an in-situ polymerization method. When 5-10% of the pasty admixture with the reinforcing and slump retaining functions is used for cement concrete, the fluidity of neat cement paste is increased by 30% within 1 h and increased by 20% within 2 h, and no loss is caused within 3 h; the 1d compressive strength is improved by 5%, and the 28d compressive strength is not reduced.
本发明公开了一种具有增强与保坍功能浆状掺合料及其制备方法和应用。本发明以沸石、水为主要原料，在聚合前驱体、过硫酸铵与助磨剂的作用下，通过湿磨工艺和原位聚合法制备出具有增强与保坍功能的浆状掺合料。当将本发明制得的具有增强与保坍功能浆状掺合料以5％‑10％的掺量用于水泥混凝土时，水泥净浆1h流动度增加30％，2h增加20％，3h无损失；1d抗压强度提高5％，28d抗压强度不降低。
Pasty admixture with reinforcing and slump retaining functions as well as preparation method and application of pasty admixture
一种具有增强与保坍功能浆状掺合料及其制备方法和应用
TAN HONGBO (author) / ZHANG SHIXUAN (author) / LEE SANG-KOOK (author) / JIAN SHOUWEI (author) / HUANG JIAN (author) / LYU YANG (author)
2023-09-08
Patent
Electronic Resource
Chinese
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