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A platform for research: civil engineering, architecture and urbanism
High-wear-resistance gypsum-based self-leveling mortar and preparation method thereof
The invention provides high-wear-resistance gypsum-based self-leveling mortar and a preparation method thereof. The high-wear-resistance gypsum-based self-leveling mortar is prepared from the following raw materials in parts by weight: 100 parts of desulfurized building gypsum, 20-25 parts of a modified reinforcing material, 80-100 parts of aggregate, 2-3 parts of rubber powder, 0.3-0.4 part of a retarder, 0.3-0.4 part of a water reducing agent, 0.2-0.3 part of a defoaming agent, 0.1-0.2 part of a water-retaining agent and 35-50 parts of water. The preparation method specifically comprises the following steps: grinding the aggregate and 50 parts of desulfurized building gypsum into a grinding material; premixing rubber powder, a retarder, a water reducing agent, a defoaming agent and a water-retaining agent to obtain a mixture; and mixing a modified reinforcing material and 50 parts of desulfurized building gypsum with the grinding material and the mixture, and then adding water and stirring to obtain the high-wear-resistance gypsum-based self-leveling mortar. The gypsum-based self-leveling mortar disclosed by the invention has the advantages of good flowability, relatively high early and later strength, no shrinkage crack caused by micro-expansion, strong adhesion with a substrate and the like, and is good in wear resistance.
本发明提供一种高耐磨石膏基自流平砂浆及其制备方法，包括下述原料配比：脱硫建筑石膏100份、改性增强材料20～25份、骨料80～100份、胶粉2～3份、缓凝剂0.3～0.4份、减水剂0.3～0.4份、消泡剂0.2～0.3份、保水剂0.1～0.2份、水35～50份。制备方法具体为：将骨料和50份脱硫建筑石膏粉磨成磨料；将胶粉、缓凝剂、减水剂、消泡剂、保水剂预混合得到混合料；将改性增强材料、50份脱硫建筑石膏与磨料、混合料混合，然后加水搅拌，得到高耐磨石膏基自流平砂浆。本发明中的石膏基自流平砂浆具有良好的流动性、早期及后期强度较高、微膨胀不会产生收缩裂缝、与基底黏结力强等优点、耐磨性好。
High-wear-resistance gypsum-based self-leveling mortar and preparation method thereof
The invention provides high-wear-resistance gypsum-based self-leveling mortar and a preparation method thereof. The high-wear-resistance gypsum-based self-leveling mortar is prepared from the following raw materials in parts by weight: 100 parts of desulfurized building gypsum, 20-25 parts of a modified reinforcing material, 80-100 parts of aggregate, 2-3 parts of rubber powder, 0.3-0.4 part of a retarder, 0.3-0.4 part of a water reducing agent, 0.2-0.3 part of a defoaming agent, 0.1-0.2 part of a water-retaining agent and 35-50 parts of water. The preparation method specifically comprises the following steps: grinding the aggregate and 50 parts of desulfurized building gypsum into a grinding material; premixing rubber powder, a retarder, a water reducing agent, a defoaming agent and a water-retaining agent to obtain a mixture; and mixing a modified reinforcing material and 50 parts of desulfurized building gypsum with the grinding material and the mixture, and then adding water and stirring to obtain the high-wear-resistance gypsum-based self-leveling mortar. The gypsum-based self-leveling mortar disclosed by the invention has the advantages of good flowability, relatively high early and later strength, no shrinkage crack caused by micro-expansion, strong adhesion with a substrate and the like, and is good in wear resistance.
本发明提供一种高耐磨石膏基自流平砂浆及其制备方法，包括下述原料配比：脱硫建筑石膏100份、改性增强材料20～25份、骨料80～100份、胶粉2～3份、缓凝剂0.3～0.4份、减水剂0.3～0.4份、消泡剂0.2～0.3份、保水剂0.1～0.2份、水35～50份。制备方法具体为：将骨料和50份脱硫建筑石膏粉磨成磨料；将胶粉、缓凝剂、减水剂、消泡剂、保水剂预混合得到混合料；将改性增强材料、50份脱硫建筑石膏与磨料、混合料混合，然后加水搅拌，得到高耐磨石膏基自流平砂浆。本发明中的石膏基自流平砂浆具有良好的流动性、早期及后期强度较高、微膨胀不会产生收缩裂缝、与基底黏结力强等优点、耐磨性好。
High-wear-resistance gypsum-based self-leveling mortar and preparation method thereof
一种高耐磨石膏基自流平砂浆及其制备方法
CAO XIAORUN (author) / WANG HAN (author) / ZHANG WEI (author) / YANG ZI (author) / LIU DONG (author) / WAN CHENGLIANG (author) / LI XIAONAN (author) / WANG ZHI (author) / LIU YONGCHUAN (author) / XIN XIAOBIN (author)
2021-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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