Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight gypsum spraying mortar and preparation method thereof
The invention provides light gypsum spraying mortar and a preparation method thereof. The light gypsum spraying mortar is prepared from the following raw materials in parts by weight: 60-70 parts of phosphogypsum, 0.8-1.2 parts of quick lime, 6-15 parts of sepiolite/fly ash composite modified material, 6-15 parts of Portland cement, 0.8-1.5 parts of aluminum dihydrogen phosphate, 1-5 parts of quartz sand and 0.1-0.2 part of sodium citrate, the phosphogypsum is subjected to surface modification through the quick lime, so that the waterproof performance is improved; and the setting time and the mechanical property of the base material can be prolonged, so that the construction requirements are met. By adding the sepiolite/fly ash composite modified material, Portland cement, aluminum dihydrogen phosphate and sodium citrate, the activity is excited in the hydration reaction process, a cementing material is formed, and the later strength is improved.
本发明提供一种轻质石膏喷涂砂浆及其制备方法，由以下重量份的原料组成：磷石膏60～70份、生石灰0.8～1.2份、海泡石/粉煤灰复合改性材料6～15份、硅酸盐水泥6～15份、双氢磷酸铝0.8～1.5份、石英砂1～5份、柠檬酸钠0.1～0.2份；本发明通过生石灰对磷石膏进行表面改性，提高防水性能；且还能够延长基体材料的凝结时间和力学性能，以满足施工要求。通过添加海泡石/粉煤灰复合改性材料、硅酸盐水泥、双氢磷酸铝和柠檬酸钠，在水化反应的过程中激发活性，形成胶凝材料，提高后期强度。
Lightweight gypsum spraying mortar and preparation method thereof
The invention provides light gypsum spraying mortar and a preparation method thereof. The light gypsum spraying mortar is prepared from the following raw materials in parts by weight: 60-70 parts of phosphogypsum, 0.8-1.2 parts of quick lime, 6-15 parts of sepiolite/fly ash composite modified material, 6-15 parts of Portland cement, 0.8-1.5 parts of aluminum dihydrogen phosphate, 1-5 parts of quartz sand and 0.1-0.2 part of sodium citrate, the phosphogypsum is subjected to surface modification through the quick lime, so that the waterproof performance is improved; and the setting time and the mechanical property of the base material can be prolonged, so that the construction requirements are met. By adding the sepiolite/fly ash composite modified material, Portland cement, aluminum dihydrogen phosphate and sodium citrate, the activity is excited in the hydration reaction process, a cementing material is formed, and the later strength is improved.
本发明提供一种轻质石膏喷涂砂浆及其制备方法，由以下重量份的原料组成：磷石膏60～70份、生石灰0.8～1.2份、海泡石/粉煤灰复合改性材料6～15份、硅酸盐水泥6～15份、双氢磷酸铝0.8～1.5份、石英砂1～5份、柠檬酸钠0.1～0.2份；本发明通过生石灰对磷石膏进行表面改性，提高防水性能；且还能够延长基体材料的凝结时间和力学性能，以满足施工要求。通过添加海泡石/粉煤灰复合改性材料、硅酸盐水泥、双氢磷酸铝和柠檬酸钠，在水化反应的过程中激发活性，形成胶凝材料，提高后期强度。
Lightweight gypsum spraying mortar and preparation method thereof
一种轻质石膏喷涂砂浆及其制备方法
LI XINGZHEN (Autor:in) / CHENG CHENG (Autor:in)
26.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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