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A platform for research: civil engineering, architecture and urbanism
Controllable low-strength concrete containing desulfurization slag and steel slag
The invention discloses controllable low-strength concrete containing desulfurized slag and steel slag, which is composed of the following materials: 20-50% of desulfurized slag, 5-20% of fly ash, 5-30% of water-quenched slag powder, 0-5% of Portland cement, 0-5% of carbide slag, 0-40% of steel slag tailings and 0-30% of iron tailings, and the desulfurized slag is a main solid waste filler and a volcanic ash activity excitation material. The invention relates to the technical field of construction materials, in particular to controllable low-strength concrete containing desulfurization slag and steel slag. The instability influence of calcium sulfite, ettringite and steel slag is reduced, and the stability of building materials using related raw materials is improved. Due to the low-strength characteristic of the CLSM, the plasticity of the CLSM also reduces the possible expansion damage influence in the later period; the alkalinity and the gelling property of the solid waste and dense filling of aggregate gradation are fully utilized, so that the use of materials such as cement and gravel is reduced, and the cost is greatly reduced; a large amount of local industrial and mining solid waste is used as the raw material, so that the solid waste can be recycled, the storage of the solid waste is reduced, and the harm of the solid waste to the environment is reduced.
本发明公开了含脱硫渣及钢渣之可控性低强度混凝土，由以下材料配比构成：脱硫渣20‑50％、粉煤灰5‑20％、水淬渣粉5‑30％、硅酸盐水泥0‑5％、电石渣0‑5％、钢渣尾渣0‑40％、铁尾矿0‑30％，其中，脱硫渣为主要的固废填充料与火山灰活性激发材料。本发明涉及营建材料技术领域，具体涉及含脱硫渣及钢渣之可控性低强度混凝土。降低亚硫酸钙、钙矾石和钢渣的不稳定性影响，提高使用相关原料之建材的安定性。CLSM本身的低强度特性，其塑性也降低了后期可能的膨胀破坏影响；充分利用固废本身的碱性、胶凝性质和骨料级配的致密填充，减少使用如水泥、砂石等材料，大幅降低成本；大量使用当地的工矿固废作为原料可将固废资源化，去化固废存量，减少其对环境的危害。
Controllable low-strength concrete containing desulfurization slag and steel slag
The invention discloses controllable low-strength concrete containing desulfurized slag and steel slag, which is composed of the following materials: 20-50% of desulfurized slag, 5-20% of fly ash, 5-30% of water-quenched slag powder, 0-5% of Portland cement, 0-5% of carbide slag, 0-40% of steel slag tailings and 0-30% of iron tailings, and the desulfurized slag is a main solid waste filler and a volcanic ash activity excitation material. The invention relates to the technical field of construction materials, in particular to controllable low-strength concrete containing desulfurization slag and steel slag. The instability influence of calcium sulfite, ettringite and steel slag is reduced, and the stability of building materials using related raw materials is improved. Due to the low-strength characteristic of the CLSM, the plasticity of the CLSM also reduces the possible expansion damage influence in the later period; the alkalinity and the gelling property of the solid waste and dense filling of aggregate gradation are fully utilized, so that the use of materials such as cement and gravel is reduced, and the cost is greatly reduced; a large amount of local industrial and mining solid waste is used as the raw material, so that the solid waste can be recycled, the storage of the solid waste is reduced, and the harm of the solid waste to the environment is reduced.
本发明公开了含脱硫渣及钢渣之可控性低强度混凝土，由以下材料配比构成：脱硫渣20‑50％、粉煤灰5‑20％、水淬渣粉5‑30％、硅酸盐水泥0‑5％、电石渣0‑5％、钢渣尾渣0‑40％、铁尾矿0‑30％，其中，脱硫渣为主要的固废填充料与火山灰活性激发材料。本发明涉及营建材料技术领域，具体涉及含脱硫渣及钢渣之可控性低强度混凝土。降低亚硫酸钙、钙矾石和钢渣的不稳定性影响，提高使用相关原料之建材的安定性。CLSM本身的低强度特性，其塑性也降低了后期可能的膨胀破坏影响；充分利用固废本身的碱性、胶凝性质和骨料级配的致密填充，减少使用如水泥、砂石等材料，大幅降低成本；大量使用当地的工矿固废作为原料可将固废资源化，去化固废存量，减少其对环境的危害。
Controllable low-strength concrete containing desulfurization slag and steel slag
含脱硫渣及钢渣之可控性低强度混凝土
ZHU TIANMIN (author) / LIU YAN (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Baking-free brick containing desulfurization slag and steel slag
| European Patent Office | 2021