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Concrete mixed with furnace bottom slag and steel slag powder and preparation method of concrete
The invention discloses concrete mixed with furnace bottom slag and steel slag powder and a preparation method of the concrete. The concrete is prepared from 210 to 230 parts of cement, 90 to 100 parts of mineral powder, 30 to 40 parts of furnace bottom slag, 30 to 40 parts of steel slag powder, 130 to 140 parts of water, 740 to 750 parts of machine-made sand, 940 to 960 parts of gravel and 5 to 6 parts of an additive, wherein the fineness of the furnace bottom slag is smaller than or equal to 12.0%, the water demand ratio is smaller than or equal to 95, the ignition loss is smaller than or equal to 5%, and the 28d activity index is larger than or equal to 70%; the fineness of the steel slag powder is less than or equal to 5%, the specific surface area is 280m < 2 >/kg, the 7d activity index is more than or equal to 50%, and the 28d activity index is more than or equal According to the invention, not only can the furnace bottom slag be utilized more efficiently, but also the early strength of the concrete is improved, and the problems of poor fluidity and large slump loss of the steel slag powder doped concrete are effectively solved. The method has the advantages of simple preparation process, high utilization rate of industrial solid wastes, low cost, low carbon and environmental protection in production.
本发明公开了一种复掺炉底渣与钢渣粉的混凝土及其制备方法，包括：210‑230份的水泥，90‑100份的矿粉，30‑40份的炉底渣，30‑40份的钢渣粉，130‑140份的水，740‑750份的机制砂，940‑960份的碎石，5‑6份的外加剂；其中，炉底渣细度≤12.0％，需水量比≤95，烧失量≤5％，28d活性指数≥70％；钢渣粉细度≤5％，比表面积280m2/kg，7d活性指数≥50％,28d活性指数≥65％。根据本发明，不仅能够使炉底渣得到更加高效的利用，而且改善混凝土早期强度，有效地解决掺钢渣粉混凝土流动性差及坍损大的问题。本发明具备制备工艺简单、工业固废利用率高、成本低、生产低碳环保的优点。
Concrete mixed with furnace bottom slag and steel slag powder and preparation method of concrete
The invention discloses concrete mixed with furnace bottom slag and steel slag powder and a preparation method of the concrete. The concrete is prepared from 210 to 230 parts of cement, 90 to 100 parts of mineral powder, 30 to 40 parts of furnace bottom slag, 30 to 40 parts of steel slag powder, 130 to 140 parts of water, 740 to 750 parts of machine-made sand, 940 to 960 parts of gravel and 5 to 6 parts of an additive, wherein the fineness of the furnace bottom slag is smaller than or equal to 12.0%, the water demand ratio is smaller than or equal to 95, the ignition loss is smaller than or equal to 5%, and the 28d activity index is larger than or equal to 70%; the fineness of the steel slag powder is less than or equal to 5%, the specific surface area is 280m < 2 >/kg, the 7d activity index is more than or equal to 50%, and the 28d activity index is more than or equal According to the invention, not only can the furnace bottom slag be utilized more efficiently, but also the early strength of the concrete is improved, and the problems of poor fluidity and large slump loss of the steel slag powder doped concrete are effectively solved. The method has the advantages of simple preparation process, high utilization rate of industrial solid wastes, low cost, low carbon and environmental protection in production.
本发明公开了一种复掺炉底渣与钢渣粉的混凝土及其制备方法，包括：210‑230份的水泥，90‑100份的矿粉，30‑40份的炉底渣，30‑40份的钢渣粉，130‑140份的水，740‑750份的机制砂，940‑960份的碎石，5‑6份的外加剂；其中，炉底渣细度≤12.0％，需水量比≤95，烧失量≤5％，28d活性指数≥70％；钢渣粉细度≤5％，比表面积280m2/kg，7d活性指数≥50％,28d活性指数≥65％。根据本发明，不仅能够使炉底渣得到更加高效的利用，而且改善混凝土早期强度，有效地解决掺钢渣粉混凝土流动性差及坍损大的问题。本发明具备制备工艺简单、工业固废利用率高、成本低、生产低碳环保的优点。
Concrete mixed with furnace bottom slag and steel slag powder and preparation method of concrete
一种复掺炉底渣与钢渣粉的混凝土及其制备方法
ZHU MINTAO (author) / LIU WEIDONG (author) / ZHAO YUJING (author) / CAO LIYING (author) / GOU HONGXIANG (author) / NI DAYOU (author) / GAO SHUANGSHUANG (author) / YE YANFEI (author) / CHENG BAOYI (author) / YIN FANFEI (author)
2023-06-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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