Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pumped all-iron tailing concrete and preparation method thereof
The invention discloses pumped all-iron tailing concrete. Each cubic meter of concrete is prepared from 233.3 kg to 318.0 kg of cement, 100.0 kg to 136.3 kg of iron tailing powder, 661.8 kg to 814.5 kg of iron tailing ore, 1064.8 kg to 1247.6 kg of iron tailing ore, 165 kg to 175 kg of water and 1.6 kg to 2.6 kg of a water reducing agent. A preparation method of the pumped all-iron tailing concrete comprises the following steps: mixing iron tailing ore, iron tailing powder and cement to obtain mixed powder; mixing the mixed powder with iron tailings to obtain a mixed dry material; and mixing amixed solution of a water reducing agent and water with the mixed dry material obtained in the previous step to obtain the concrete. According to the pumped all-iron tailing concrete, the iron tailing powder is adopted to replace 30% by mass of cement in common concrete, the iron tailing sand serves as fine aggregate, the iron tailing ore serves as coarse aggregate, all the components are matchedwith one another, a large amount of iron tailings can be utilized, and the cost is low. In the pumped all-iron tailing concrete, the maximum use amount of the iron tailings reaches 83.5%, and variousparameters of the concrete are superior to those of common concrete, so that the requirements of daily construction are met.
一种泵送的全铁尾矿混凝土，以每立方米混凝土计，包括水泥233.3～318.0kg、铁尾矿粉100.0～136.3kg、铁尾矿砂661.8～814.5kg、铁尾矿石1064.8～1247.6kg、水165～175kg和减水剂1.6～2.6kg。该泵送的全铁尾狂矿混凝土的制备方法包括：铁尾矿砂、铁尾矿粉和水泥混合，得到混合粉料；混合粉料与铁尾矿石混合，得到混合干料；将减水剂和水的混合液与上述步骤得到的混合干料混合，得到混凝土。该泵送的全铁尾矿混凝土采用铁尾矿粉替代普通混凝土中30％质量的水泥，与铁尾矿砂作为细骨料、以铁尾矿石作为粗骨料，各组分相互配合，能大量利用铁尾矿且成本低廉。该泵送的全铁尾矿混凝土中，铁尾矿的用量最高达到83.5％，且混凝土各项参数优于普通混凝土，满足日常施工的要求。
Pumped all-iron tailing concrete and preparation method thereof
The invention discloses pumped all-iron tailing concrete. Each cubic meter of concrete is prepared from 233.3 kg to 318.0 kg of cement, 100.0 kg to 136.3 kg of iron tailing powder, 661.8 kg to 814.5 kg of iron tailing ore, 1064.8 kg to 1247.6 kg of iron tailing ore, 165 kg to 175 kg of water and 1.6 kg to 2.6 kg of a water reducing agent. A preparation method of the pumped all-iron tailing concrete comprises the following steps: mixing iron tailing ore, iron tailing powder and cement to obtain mixed powder; mixing the mixed powder with iron tailings to obtain a mixed dry material; and mixing amixed solution of a water reducing agent and water with the mixed dry material obtained in the previous step to obtain the concrete. According to the pumped all-iron tailing concrete, the iron tailing powder is adopted to replace 30% by mass of cement in common concrete, the iron tailing sand serves as fine aggregate, the iron tailing ore serves as coarse aggregate, all the components are matchedwith one another, a large amount of iron tailings can be utilized, and the cost is low. In the pumped all-iron tailing concrete, the maximum use amount of the iron tailings reaches 83.5%, and variousparameters of the concrete are superior to those of common concrete, so that the requirements of daily construction are met.
一种泵送的全铁尾矿混凝土，以每立方米混凝土计，包括水泥233.3～318.0kg、铁尾矿粉100.0～136.3kg、铁尾矿砂661.8～814.5kg、铁尾矿石1064.8～1247.6kg、水165～175kg和减水剂1.6～2.6kg。该泵送的全铁尾狂矿混凝土的制备方法包括：铁尾矿砂、铁尾矿粉和水泥混合，得到混合粉料；混合粉料与铁尾矿石混合，得到混合干料；将减水剂和水的混合液与上述步骤得到的混合干料混合，得到混凝土。该泵送的全铁尾矿混凝土采用铁尾矿粉替代普通混凝土中30％质量的水泥，与铁尾矿砂作为细骨料、以铁尾矿石作为粗骨料，各组分相互配合，能大量利用铁尾矿且成本低廉。该泵送的全铁尾矿混凝土中，铁尾矿的用量最高达到83.5％，且混凝土各项参数优于普通混凝土，满足日常施工的要求。
Pumped all-iron tailing concrete and preparation method thereof
一种泵送的全铁尾矿混凝土及其制备方法
MA XINXIN (Autor:in) / SUN JIANHENG (Autor:in) / MENG ZHILIANG (Autor:in) / YANG MINGJING (Autor:in) / DUN CHENYANG (Autor:in) / DUAN YAJING (Autor:in) / LI HONGMEI (Autor:in) / WANG JUNLIN (Autor:in) / YUAN JING (Autor:in) / ZHANG FENGSHUANG (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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