A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-volume-weight iron tailing powder reactive powder concrete and preparation method thereof
The invention belongs to the field of application of high-performance building materials and solid wastes in high-performance concrete, and particularly relates to low-volume-weight iron tailing powder reactive powder concrete and a preparation method thereof. The low-volume-weight iron tailing powder reactive powder concrete is prepared from the following raw materials in parts by weight: 200 to 220 parts of cement, 50 to 60 parts of silica fume, 112 to 126 parts of quartz sand coarse sand, 66 to 74 parts of quartz sand medium sand, 36 to 40 parts of quartz sand fine sand, 70 to 76 parts of iron tailing powder, 36 to 44 parts of water, 32 to 38 parts of steel fiber and 2 to 4 parts of a water reducing agent. The cost of the reactive powder concrete can be reduced, the problem that a large number of iron tailings are piled up can be solved, in addition, the compressive strength and breaking strength of the reactive powder concrete are improved through replacement of the iron tailings, and the volume weight of the reactive powder concrete is reduced. The iron tailing powder reactive powder concrete disclosed by the invention is considerable in compressive strength and breaking strength, relatively simple in preparation process and low in volume weight, and can be applied to anti-collision walls, sidewalks and cable cover plates.
本发明属于高性能建筑材料及固体废弃物在高性能混凝土中的应用领域，具体涉及一种低容重铁尾矿粉活性粉末混凝土及其制备方法。一种低容重铁尾矿粉活性粉末混凝土，包括以下重量份原料：水泥200~220份，硅灰50~60份，石英砂粗砂112~126份，石英砂中砂66~74份，石英砂细砂36~40份，铁尾矿粉70~76份，水36~44份，钢纤维32~38份，减水剂2~4份。本发明不止能够降低活性粉末混凝土的成本，还能解决铁尾矿大量堆存问题，此外铁尾矿的替代提高了活性粉末混凝土的抗压强度和抗折强度、降低了活性粉末混凝土的容重。本发明的铁尾矿粉活性粉末混凝土抗压强度、抗折强度十分可观，制备工艺相对简单，容重低，可用于防撞墙、人行道和电缆盖板之中。
Low-volume-weight iron tailing powder reactive powder concrete and preparation method thereof
The invention belongs to the field of application of high-performance building materials and solid wastes in high-performance concrete, and particularly relates to low-volume-weight iron tailing powder reactive powder concrete and a preparation method thereof. The low-volume-weight iron tailing powder reactive powder concrete is prepared from the following raw materials in parts by weight: 200 to 220 parts of cement, 50 to 60 parts of silica fume, 112 to 126 parts of quartz sand coarse sand, 66 to 74 parts of quartz sand medium sand, 36 to 40 parts of quartz sand fine sand, 70 to 76 parts of iron tailing powder, 36 to 44 parts of water, 32 to 38 parts of steel fiber and 2 to 4 parts of a water reducing agent. The cost of the reactive powder concrete can be reduced, the problem that a large number of iron tailings are piled up can be solved, in addition, the compressive strength and breaking strength of the reactive powder concrete are improved through replacement of the iron tailings, and the volume weight of the reactive powder concrete is reduced. The iron tailing powder reactive powder concrete disclosed by the invention is considerable in compressive strength and breaking strength, relatively simple in preparation process and low in volume weight, and can be applied to anti-collision walls, sidewalks and cable cover plates.
本发明属于高性能建筑材料及固体废弃物在高性能混凝土中的应用领域，具体涉及一种低容重铁尾矿粉活性粉末混凝土及其制备方法。一种低容重铁尾矿粉活性粉末混凝土，包括以下重量份原料：水泥200~220份，硅灰50~60份，石英砂粗砂112~126份，石英砂中砂66~74份，石英砂细砂36~40份，铁尾矿粉70~76份，水36~44份，钢纤维32~38份，减水剂2~4份。本发明不止能够降低活性粉末混凝土的成本，还能解决铁尾矿大量堆存问题，此外铁尾矿的替代提高了活性粉末混凝土的抗压强度和抗折强度、降低了活性粉末混凝土的容重。本发明的铁尾矿粉活性粉末混凝土抗压强度、抗折强度十分可观，制备工艺相对简单，容重低，可用于防撞墙、人行道和电缆盖板之中。
Low-volume-weight iron tailing powder reactive powder concrete and preparation method thereof
一种低容重铁尾矿粉活性粉末混凝土及其制备方法
XU JINHUA (author) / YUE ZIJIAN (author) / JIN SHENGJI (author) / CHENG QIAN (author) / WANG SHUAI (author) / MIAO LIN (author) / YANG YUHAO (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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