Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-solid waste concrete taking hot-stewed converter steel slag as aggregate and preparation method of all-solid waste concrete
The invention provides all-solid waste concrete taking hot-stewed converter steel slag as aggregate and a preparation method of the all-solid waste concrete, and relates to the technical field of solid waste resource utilization. The cementing material of the concrete is 78-88% of S95 slag powder and ground desulfurized gypsum, the aggregate is 100% of hot-stewed converter steel slag, and the steel slag accounts for 70-85% of the concrete in terms of dry basis mass. During preparation, the hot-stewed converter steel slag is sieved according to 0-5 mm, 5-10 mm and 10-20 mm, the steel slag larger than 20 mm is sieved after being crushed, and then the cementing material, the aggregate, the water and the concrete admixture are uniformly stirred according to a certain proportion to prepare the all-solid waste concrete. The all-solid waste concrete with the 28-day compressive strength of 30-80 MPa under the standard curing condition is prepared, the mass ratio of the steel slag in the concrete is remarkably increased, the manufacturing cost of the concrete can be remarkably reduced while the utilization efficiency of the steel slag is improved, and good environmental benefits and economic benefits are achieved.
本发明提供一种热焖转炉钢渣为骨料的全固废混凝土及其制备方法，涉及固废资源化利用技术领域。混凝土的胶凝材料为78％‑88％的S95矿渣粉和磨细脱硫石膏，骨料为100％热焖转炉钢渣，以干基质量计，钢渣在混凝土的中占比70‑85％。制备时，将热焖转炉钢渣按照0‑5、5‑10和10‑20mm筛分，大于20mm的经破碎后筛分，然后将胶凝材料、骨料、水和混凝土外加剂按一定比例搅拌均匀制得全固废混凝土。本发明制备出标准养护条件下28天抗压强度30MPa‑80MPa的全固废混凝土，显著提高了钢渣在混凝土中的质量占比，提升其利用效率的同时可显著降低混凝土的制造成本，具有良好的环境效益和经济效益。
All-solid waste concrete taking hot-stewed converter steel slag as aggregate and preparation method of all-solid waste concrete
The invention provides all-solid waste concrete taking hot-stewed converter steel slag as aggregate and a preparation method of the all-solid waste concrete, and relates to the technical field of solid waste resource utilization. The cementing material of the concrete is 78-88% of S95 slag powder and ground desulfurized gypsum, the aggregate is 100% of hot-stewed converter steel slag, and the steel slag accounts for 70-85% of the concrete in terms of dry basis mass. During preparation, the hot-stewed converter steel slag is sieved according to 0-5 mm, 5-10 mm and 10-20 mm, the steel slag larger than 20 mm is sieved after being crushed, and then the cementing material, the aggregate, the water and the concrete admixture are uniformly stirred according to a certain proportion to prepare the all-solid waste concrete. The all-solid waste concrete with the 28-day compressive strength of 30-80 MPa under the standard curing condition is prepared, the mass ratio of the steel slag in the concrete is remarkably increased, the manufacturing cost of the concrete can be remarkably reduced while the utilization efficiency of the steel slag is improved, and good environmental benefits and economic benefits are achieved.
本发明提供一种热焖转炉钢渣为骨料的全固废混凝土及其制备方法，涉及固废资源化利用技术领域。混凝土的胶凝材料为78％‑88％的S95矿渣粉和磨细脱硫石膏，骨料为100％热焖转炉钢渣，以干基质量计，钢渣在混凝土的中占比70‑85％。制备时，将热焖转炉钢渣按照0‑5、5‑10和10‑20mm筛分，大于20mm的经破碎后筛分，然后将胶凝材料、骨料、水和混凝土外加剂按一定比例搅拌均匀制得全固废混凝土。本发明制备出标准养护条件下28天抗压强度30MPa‑80MPa的全固废混凝土，显著提高了钢渣在混凝土中的质量占比，提升其利用效率的同时可显著降低混凝土的制造成本，具有良好的环境效益和经济效益。
All-solid waste concrete taking hot-stewed converter steel slag as aggregate and preparation method of all-solid waste concrete
一种热焖转炉钢渣为骨料的全固废混凝土及其制备方法
JIA GUOLIANG (Autor:in) / NI WEN (Autor:in) / XU DONG (Autor:in) / LI XIAOQI (Autor:in) / ZHANG NING (Autor:in) / PAN ZONGCHEN (Autor:in) / DING JIAN (Autor:in)
18.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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