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A platform for research: civil engineering, architecture and urbanism
Lead-zinc ore smelting slag-steel slag lightweight high-strength concrete and preparation method thereof
The invention discloses lead-zinc ore smelting slag-steel slag lightweight high-strength concrete and a preparation method thereof. Each cubic meter of the concrete comprises 440-480 kg of cement, 65-75 kg of mineral powder, 6-7 kg of nano powder, 25-35 kg of lead-zinc ore smelting slag, 25-35 kg of steel slag powder, 60-70 kg of silica fume, 850-900 kg of ceramsite, 50-60 kg of pottery sand, 350-400 kg of machine-made sand, 170-190 kg of water and 13-16 kg of a superplasticizer. The preparation method comprises the steps: firstly, carrying out efficient ultrafine grinding on lead-zinc ore smelting slag and steel slag treated by an enterprise by adopting a ball mill-vibration mill combined grinding system; grinding until the specific surface area is 500-600 m<2>/kg; accurately weighing theraw materials according to the weight percentage; wetting the ceramsite pottery sand with water, and pouring into a stirrer; pouring various powder materials together, uniformly stirring, adding a mixture of water and a water reducing agent, fully and uniformly stirring, pouring out, and filling into a mold to obtain the light-weight high-strength concrete, wherein the 28-day compressive strengthof the finally obtained product reaches 60-80 MPa, and the volume density is 1800-1900 kg/m<3>. According to the invention, the use amount of cement is reduced, solid wastes such as lead-zinc ore smelting slag and steel slag are fully utilized, and the purposes of waste utilization and environmental protection are achieved.
本发明公开了一种铅锌矿冶炼渣—钢渣轻质高强混凝土及其制备方法。每立方米混凝土由440～480KG水泥、65～75KG矿粉、纳米粉6～7KG、铅锌矿冶炼渣25～35KG、钢渣粉25～35KG、硅灰60～70KG、陶粒850～900KG、陶砂50～60KG、机制砂350～400KG、水170～190KG、高效减水剂13～16KG组成。首先将企业处理过的铅锌矿冶炼渣和钢渣采用球磨机—振动磨联合粉磨系统进行高效超细粉磨，粉磨至比表面积为500～600m/kg，按照重量百分比准确称取上述各种原材料，用水将陶粒陶砂润湿后倒入搅拌机内，将各种粉料一起倒入搅拌均匀，加入水和减水剂混合物，充分搅拌均匀后倒出装模即可得到轻质高强混凝土，最终得到产品的28天抗压强度达到60～80MPa，体积密度为1800～1900kg/m。本发明减少了水泥的用量，又充分利用了铅锌矿冶炼渣和钢渣等固废，达到利废环保的目的。
Lead-zinc ore smelting slag-steel slag lightweight high-strength concrete and preparation method thereof
The invention discloses lead-zinc ore smelting slag-steel slag lightweight high-strength concrete and a preparation method thereof. Each cubic meter of the concrete comprises 440-480 kg of cement, 65-75 kg of mineral powder, 6-7 kg of nano powder, 25-35 kg of lead-zinc ore smelting slag, 25-35 kg of steel slag powder, 60-70 kg of silica fume, 850-900 kg of ceramsite, 50-60 kg of pottery sand, 350-400 kg of machine-made sand, 170-190 kg of water and 13-16 kg of a superplasticizer. The preparation method comprises the steps: firstly, carrying out efficient ultrafine grinding on lead-zinc ore smelting slag and steel slag treated by an enterprise by adopting a ball mill-vibration mill combined grinding system; grinding until the specific surface area is 500-600 m<2>/kg; accurately weighing theraw materials according to the weight percentage; wetting the ceramsite pottery sand with water, and pouring into a stirrer; pouring various powder materials together, uniformly stirring, adding a mixture of water and a water reducing agent, fully and uniformly stirring, pouring out, and filling into a mold to obtain the light-weight high-strength concrete, wherein the 28-day compressive strengthof the finally obtained product reaches 60-80 MPa, and the volume density is 1800-1900 kg/m<3>. According to the invention, the use amount of cement is reduced, solid wastes such as lead-zinc ore smelting slag and steel slag are fully utilized, and the purposes of waste utilization and environmental protection are achieved.
本发明公开了一种铅锌矿冶炼渣—钢渣轻质高强混凝土及其制备方法。每立方米混凝土由440～480KG水泥、65～75KG矿粉、纳米粉6～7KG、铅锌矿冶炼渣25～35KG、钢渣粉25～35KG、硅灰60～70KG、陶粒850～900KG、陶砂50～60KG、机制砂350～400KG、水170～190KG、高效减水剂13～16KG组成。首先将企业处理过的铅锌矿冶炼渣和钢渣采用球磨机—振动磨联合粉磨系统进行高效超细粉磨，粉磨至比表面积为500～600m/kg，按照重量百分比准确称取上述各种原材料，用水将陶粒陶砂润湿后倒入搅拌机内，将各种粉料一起倒入搅拌均匀，加入水和减水剂混合物，充分搅拌均匀后倒出装模即可得到轻质高强混凝土，最终得到产品的28天抗压强度达到60～80MPa，体积密度为1800～1900kg/m。本发明减少了水泥的用量，又充分利用了铅锌矿冶炼渣和钢渣等固废，达到利废环保的目的。
Lead-zinc ore smelting slag-steel slag lightweight high-strength concrete and preparation method thereof
一种铅锌矿冶炼渣—钢渣轻质高强混凝土及其制备方法
WEI JIAZHAN (author) / LIU RONGJIN (author) / CHEN PING (author) / JING DAIYAN (author) / LIANG HAIQU (author) / LONG ZUYE (author) / HUANG CHONGYI (author) / ZHAO YANRONG (author)
2020-08-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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