A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Springback-reducing admixture for sprayed concrete and preparation method thereof
The invention provides a springback-reducing admixture for sprayed concrete and a preparation method of the springback-reducing admixture, and relates to the technical field of concrete admixtures. The springback-reducing admixture for the sprayed concrete comprises the following raw materials in percentage by mass: 40-70% of a component A and 30-60% of a component B, the component A comprises the following raw materials in percentage by mass: 30%-50% of calcined kaolin, 10%-20% of light calcined magnesia and 40%-60% of semi-hydrated gypsum. And the component B comprises the following raw materials in percentage by mass: 60-90% of cement, 5-10% of modified rubber powder and 5-10% of cellulose. The springback-reducing admixture for sprayed concrete provided by the invention is applied to sprayed concrete and has relatively low springback rate and relatively high strength.
本发明提供一种喷射混凝土用降回弹掺合料及其制备方法，涉及混凝土外加剂技术领域。一种喷射混凝土用降回弹掺合料，包括以下质量百分比的原料：40％～70％A组分、30％～60％B组分。所述的A组分包括以下质量百分比的原料：30％～50％煅烧高岭土、10％～20％轻烧氧化镁、40％～60％半水石膏。所述的B组分包括以下质量百分比的原料：60％～90％水泥、5％～10％改性胶粉、5％～10％纤维素。本发明提供的喷射混凝土用降回弹掺合料应用于喷射混凝土，具有较低的回弹率以及较高的强度。
Springback-reducing admixture for sprayed concrete and preparation method thereof
The invention provides a springback-reducing admixture for sprayed concrete and a preparation method of the springback-reducing admixture, and relates to the technical field of concrete admixtures. The springback-reducing admixture for the sprayed concrete comprises the following raw materials in percentage by mass: 40-70% of a component A and 30-60% of a component B, the component A comprises the following raw materials in percentage by mass: 30%-50% of calcined kaolin, 10%-20% of light calcined magnesia and 40%-60% of semi-hydrated gypsum. And the component B comprises the following raw materials in percentage by mass: 60-90% of cement, 5-10% of modified rubber powder and 5-10% of cellulose. The springback-reducing admixture for sprayed concrete provided by the invention is applied to sprayed concrete and has relatively low springback rate and relatively high strength.
本发明提供一种喷射混凝土用降回弹掺合料及其制备方法，涉及混凝土外加剂技术领域。一种喷射混凝土用降回弹掺合料，包括以下质量百分比的原料：40％～70％A组分、30％～60％B组分。所述的A组分包括以下质量百分比的原料：30％～50％煅烧高岭土、10％～20％轻烧氧化镁、40％～60％半水石膏。所述的B组分包括以下质量百分比的原料：60％～90％水泥、5％～10％改性胶粉、5％～10％纤维素。本发明提供的喷射混凝土用降回弹掺合料应用于喷射混凝土，具有较低的回弹率以及较高的强度。
Springback-reducing admixture for sprayed concrete and preparation method thereof
一种喷射混凝土用降回弹掺合料及其制备方法
FAN DONGDONG (author) / YANG QI (author) / ZHANG YIMENG (author) / CHEN YITAO (author) / LIN CHUNHONG (author) / TANG JIE (author) / ZHU ZONGJIAN (author) / WU CHENGHAO (author) / JIANG AJUAN (author) / LEI SENMING (author)
2025-01-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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