Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Iron-containing tailing sand reactive powder concrete and preparation method thereof
The invention discloses iron-containing tailing sand reactive powder concrete and a preparation method thereof, and the iron-containing tailing sand reactive powder concrete comprises the following raw materials by weight: 768 parts of cement; 115 to 246 parts of silica fume; 960 to 1075 parts of iron tailing sand; 61 to 77 parts of fly ash; 102 to 118 parts of steel fiber; 215 parts of water; 19-38 parts of a water reducing agent; the preparation method comprises the following steps: preparing a mold, and carrying out pretreatment on the mold; weighing various raw materials in parts by weight; performing dry stirring in a stirrer; adding a mixed solution of a water reducing agent and water, and mixing and stirring; pouring all the rest materials and finally stirring; demolding the mold; and curing the demolded concrete. The reactive powder concrete disclosed by the invention has relatively high compressive strength, compactness and toughness, can be applied to bridge engineering construction and high-rise buildings, and is also environment-friendly and material-saving high-performance concrete vigorously popularized in China. The method can effectively reduce the exploitation of the natural gravel, and reduces the environmental pollution caused by the stockpiling of the iron tailings.
本发明公开了一种含铁尾矿砂活性粉末混凝土及其制备方法，其以重量份数计，由以下原料组成：水泥768份；硅灰115~246份；铁尾矿砂960~1075份；粉煤灰61~77份；钢纤维102~118份；水215份；减水剂19~38份；其制备方法，包括以下步骤：准备模具，并对模具进行前处理；按照重量份数称取各种原材料；在搅拌机内进行干搅拌；加入减水剂和水的混合液进行混合搅拌；将剩余材料全部倒入进行最终搅拌；进行模具的脱模；对脱模后的混凝土进行养护。本发明的活性粉末混凝土具有较高的抗压强度、密实度和韧性，能够应用于桥梁工程建设和高层建筑，活性粉末混凝土也是我国大力推广的环保节材型高性能混凝土。本发明能够有效减少天然砂石的开采，减少了铁尾矿堆存带来的环境污染。
Iron-containing tailing sand reactive powder concrete and preparation method thereof
The invention discloses iron-containing tailing sand reactive powder concrete and a preparation method thereof, and the iron-containing tailing sand reactive powder concrete comprises the following raw materials by weight: 768 parts of cement; 115 to 246 parts of silica fume; 960 to 1075 parts of iron tailing sand; 61 to 77 parts of fly ash; 102 to 118 parts of steel fiber; 215 parts of water; 19-38 parts of a water reducing agent; the preparation method comprises the following steps: preparing a mold, and carrying out pretreatment on the mold; weighing various raw materials in parts by weight; performing dry stirring in a stirrer; adding a mixed solution of a water reducing agent and water, and mixing and stirring; pouring all the rest materials and finally stirring; demolding the mold; and curing the demolded concrete. The reactive powder concrete disclosed by the invention has relatively high compressive strength, compactness and toughness, can be applied to bridge engineering construction and high-rise buildings, and is also environment-friendly and material-saving high-performance concrete vigorously popularized in China. The method can effectively reduce the exploitation of the natural gravel, and reduces the environmental pollution caused by the stockpiling of the iron tailings.
本发明公开了一种含铁尾矿砂活性粉末混凝土及其制备方法，其以重量份数计，由以下原料组成：水泥768份；硅灰115~246份；铁尾矿砂960~1075份；粉煤灰61~77份；钢纤维102~118份；水215份；减水剂19~38份；其制备方法，包括以下步骤：准备模具，并对模具进行前处理；按照重量份数称取各种原材料；在搅拌机内进行干搅拌；加入减水剂和水的混合液进行混合搅拌；将剩余材料全部倒入进行最终搅拌；进行模具的脱模；对脱模后的混凝土进行养护。本发明的活性粉末混凝土具有较高的抗压强度、密实度和韧性，能够应用于桥梁工程建设和高层建筑，活性粉末混凝土也是我国大力推广的环保节材型高性能混凝土。本发明能够有效减少天然砂石的开采，减少了铁尾矿堆存带来的环境污染。
Iron-containing tailing sand reactive powder concrete and preparation method thereof
一种含铁尾矿砂活性粉末混凝土及其制备方法
ZHANG LIQUN (Autor:in) / WANG CHENGUANG (Autor:in) / LIU HONGBO (Autor:in) / WANG YACHAO (Autor:in) / WU LEI (Autor:in) / SHI YUXIN (Autor:in) / LI YUANBO (Autor:in) / JIANG MINGXUE (Autor:in) / LI SHAOGANG (Autor:in) / ZHU CHEN (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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