Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified limestone powder, cementing material and preparation method
In order to solve the technical problems that the traditional modified limestone powder is modified by adopting artificially synthesized organic matters, the process is complicated and is harmful to human bodies, the embodiment of the invention provides modified limestone powder, a cementing material and a preparation method. The modified limestone powder is prepared from the following raw materials in parts by mass: 80 to 90 parts of limestone mine for production with the calcium carbonate content of 75 percent or more, 10 to 20 parts of silica fume and 2 to 3 parts of redispersible latex. The cementing material comprises the modified limestone powder, and the modified limestone powder accounts for 20-30% of the total weight of the cementing material. The preparation method of the modified limestone powder comprises the following steps: crushing limestone ore for production into mineral particles; uniformly mixing the mineral particles with silica fume to obtain a mixture; and mixing the mixture with redispersible latex powder, and grinding to obtain the modified limestone powder. According to the embodiment of the invention, the number of components of the modified limestone powder is reduced, the preparation process is simplified, and the redispersible latex is adopted, so that the harm to a human body caused by the use of a large amount of artificially synthesized organic matters is avoided.
为解决传统的改性石灰石粉采用人工合成有机物改性，工艺复杂且对人体有害的技术问题，本发明实施例提供一种改性石灰石粉、胶凝材料及制备方法，改性石灰石粉包括如下质量份数的原料：碳酸钙含量75％以上的生产用石灰石矿80‑90份、硅灰10‑20份和可再分散乳胶2‑3份；胶凝材料包括所述改性石灰石粉；所述改性石灰石粉占所述胶凝材料总重的20％‑30％；改性石灰石粉的制备方法包括：将生产用石灰石矿破碎成矿物颗粒；将所述矿物颗粒与硅灰混匀后，得到混合料；将所述混合料与可再分散乳胶粉混合后粉磨，得到改性石灰石粉。本发明实施例减少了改性石灰石粉的组分数量，简化了制备工艺，并通过采用可再分散乳胶避免了大量使用人工合成有机物对人体的伤害。
Modified limestone powder, cementing material and preparation method
In order to solve the technical problems that the traditional modified limestone powder is modified by adopting artificially synthesized organic matters, the process is complicated and is harmful to human bodies, the embodiment of the invention provides modified limestone powder, a cementing material and a preparation method. The modified limestone powder is prepared from the following raw materials in parts by mass: 80 to 90 parts of limestone mine for production with the calcium carbonate content of 75 percent or more, 10 to 20 parts of silica fume and 2 to 3 parts of redispersible latex. The cementing material comprises the modified limestone powder, and the modified limestone powder accounts for 20-30% of the total weight of the cementing material. The preparation method of the modified limestone powder comprises the following steps: crushing limestone ore for production into mineral particles; uniformly mixing the mineral particles with silica fume to obtain a mixture; and mixing the mixture with redispersible latex powder, and grinding to obtain the modified limestone powder. According to the embodiment of the invention, the number of components of the modified limestone powder is reduced, the preparation process is simplified, and the redispersible latex is adopted, so that the harm to a human body caused by the use of a large amount of artificially synthesized organic matters is avoided.
为解决传统的改性石灰石粉采用人工合成有机物改性，工艺复杂且对人体有害的技术问题，本发明实施例提供一种改性石灰石粉、胶凝材料及制备方法，改性石灰石粉包括如下质量份数的原料：碳酸钙含量75％以上的生产用石灰石矿80‑90份、硅灰10‑20份和可再分散乳胶2‑3份；胶凝材料包括所述改性石灰石粉；所述改性石灰石粉占所述胶凝材料总重的20％‑30％；改性石灰石粉的制备方法包括：将生产用石灰石矿破碎成矿物颗粒；将所述矿物颗粒与硅灰混匀后，得到混合料；将所述混合料与可再分散乳胶粉混合后粉磨，得到改性石灰石粉。本发明实施例减少了改性石灰石粉的组分数量，简化了制备工艺，并通过采用可再分散乳胶避免了大量使用人工合成有机物对人体的伤害。
Modified limestone powder, cementing material and preparation method
一种改性石灰石粉、胶凝材料及制备方法
YU ZHIQIANG (Autor:in) / LIU DONG (Autor:in) / WANG JUN (Autor:in) / LU JIALIN (Autor:in) / ZHANG YUAN (Autor:in) / SU FANGCHUN (Autor:in) / LIU JUNJUN (Autor:in) / LAN CONG (Autor:in)
14.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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