A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
C80 solid waste concrete and preparation method thereof
The invention relates to C80 solid waste concrete and a preparation method thereof, and the concrete is prepared from the following components in parts by weight: 134 to 140 parts of water, 265 to 277 parts of cement, 184 to 200 parts of composite admixture, 780 to 800 parts of tailing machine-made sand, 215 to 230 parts of tailing machine-made coarse aggregate with grading of 5 to 15, 863 to 875 parts of tailing machine-made coarse aggregate with grading of 5 to 25 and 4.6 to 5.0 parts of polycarboxylate superplasticizer. Wherein the composite admixture is formed by compounding mineral powder, steel slag, desulfurized gypsum and a nanocrystalline nucleus type early strength agent in proportion. The C80 solid waste concrete has excellent strength, is doped with a large amount of composite admixture, fully utilizes smelting slag solid wastes such as steel slag, mineral powder and desulfurized gypsum, replaces 40% of cement in the concrete with the composite admixture prepared by a gun machine with nano crystal nucleus, and enables the activity of the composite admixture to be completely excited under a steam curing condition. The early strength of a concrete system is improved, the smelting slag resource is promoted to be combined with a steam curing concrete prefabricated part product, and the cost is greatly reduced.
本申请涉及一种C80固废混凝土及其制备方法，该混凝土按重量份数计，包括以下组分：水134～140份、水泥265～277份、复合掺合料184～200份、尾矿机制砂780～800份、级配5‑15尾矿机制粗骨料215～230份、级配5‑25尾矿机制粗骨料863～875份和聚羧酸减水剂4.6～5.0份。其中，复合掺合料由矿粉、钢渣、脱硫石膏、纳米晶核型早强剂按比例复配而成。该C80固废混凝土强度优异，且大量掺杂复合掺合料，充分利用钢渣、矿粉、脱硫石膏等冶炼渣固体废弃物，配以纳米晶核在枪机制备的复合掺合料取代混凝土中40％的水泥，在蒸汽养护条件下使得复合掺合料的活性被完全激发出来，提高混凝土体系的早期强度，促使冶炼渣资源与蒸汽养护混凝土预制构件产品相结合，大大降低了成本。
C80 solid waste concrete and preparation method thereof
The invention relates to C80 solid waste concrete and a preparation method thereof, and the concrete is prepared from the following components in parts by weight: 134 to 140 parts of water, 265 to 277 parts of cement, 184 to 200 parts of composite admixture, 780 to 800 parts of tailing machine-made sand, 215 to 230 parts of tailing machine-made coarse aggregate with grading of 5 to 15, 863 to 875 parts of tailing machine-made coarse aggregate with grading of 5 to 25 and 4.6 to 5.0 parts of polycarboxylate superplasticizer. Wherein the composite admixture is formed by compounding mineral powder, steel slag, desulfurized gypsum and a nanocrystalline nucleus type early strength agent in proportion. The C80 solid waste concrete has excellent strength, is doped with a large amount of composite admixture, fully utilizes smelting slag solid wastes such as steel slag, mineral powder and desulfurized gypsum, replaces 40% of cement in the concrete with the composite admixture prepared by a gun machine with nano crystal nucleus, and enables the activity of the composite admixture to be completely excited under a steam curing condition. The early strength of a concrete system is improved, the smelting slag resource is promoted to be combined with a steam curing concrete prefabricated part product, and the cost is greatly reduced.
本申请涉及一种C80固废混凝土及其制备方法，该混凝土按重量份数计，包括以下组分：水134～140份、水泥265～277份、复合掺合料184～200份、尾矿机制砂780～800份、级配5‑15尾矿机制粗骨料215～230份、级配5‑25尾矿机制粗骨料863～875份和聚羧酸减水剂4.6～5.0份。其中，复合掺合料由矿粉、钢渣、脱硫石膏、纳米晶核型早强剂按比例复配而成。该C80固废混凝土强度优异，且大量掺杂复合掺合料，充分利用钢渣、矿粉、脱硫石膏等冶炼渣固体废弃物，配以纳米晶核在枪机制备的复合掺合料取代混凝土中40％的水泥，在蒸汽养护条件下使得复合掺合料的活性被完全激发出来，提高混凝土体系的早期强度，促使冶炼渣资源与蒸汽养护混凝土预制构件产品相结合，大大降低了成本。
C80 solid waste concrete and preparation method thereof
C80固废混凝土及其制备方法
SHI RUOXIN (author) / FAN JUNJIANG (author) / YU LINFENG (author) / HAN JIANJUN (author) / SUN DANDAN (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Solid waste ecological concrete and preparation method thereof
| European Patent Office | 2021
Building solid waste concrete and preparation method thereof
| European Patent Office | 2021
Solid waste cementing material, all-solid-waste concrete and preparation method thereof
| European Patent Office | 2021
Phosphogypsum solid waste aerated concrete and preparation method thereof
| European Patent Office | 2024