Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of industrial solid waste recycling and low-carbon concrete materials, in particular to an alkali-activated steel solid waste-based low-carbon concrete material and a preparation method thereof. The low-carbon concrete is prepared from the following raw materials in parts by weight: 5-15 parts of steel slag, 35-45 parts of mineral slag, 15-45 parts of iron tailings, 45-75 parts of river sand, 100 parts of natural gravel, 1.5-2.5 parts of sodium hydroxide, 7-13 parts of water glass, 0.8 part of a water reducing agent and 20 parts of water. According to the low-carbon concrete provided by the invention, the solid waste in the steel industry is utilized to completely replace cement and partially replace natural fine aggregate, and the mixing amount of each component is optimized through experiments. Under the synergistic effect of the slag and the alkaline activator, the volume expansibility of the steel slag is improved. And good mechanical properties, working performance and environmental benefits are achieved. Compared with traditional cement concrete, consumption of non-renewable resources is avoided, and meanwhile the purposes of low carbon and low energy consumption are achieved. And the method has certain practical significance and popularization value in the fields of comprehensive utilization of solid wastes and low-carbon concrete.
本发明涉及工业固废的再利用和低碳混凝土材料技术领域，更具体地说，它涉及一种碱激发钢铁固废基低碳混凝土材料及制备方法。该低碳混凝土包括以下重量份原料组成：钢渣5‑15份，矿渣35‑45份，铁尾砂15‑45份、河砂45‑75份、天然碎石100份、氢氧化钠1.5‑2.5份、水玻璃7‑13份、减水剂0.8份，水20份。本发明提供的低碳混凝土，利用钢铁工业固废完全取代水泥和部分取代天然细骨料，通过实验对各组分的掺量优化。在矿渣和碱性激发剂的协同作用下改善了钢渣的体积膨胀性。并具有良好的力学性能、工作性能、环境效益。相比于传统水泥混凝土，避免了不可再生资源的消耗，同时达到了低碳、低能耗的目的。对于固体废弃物综合利用和低碳混凝土领域，具有一定的实用意义和推广价值。
The invention relates to the technical field of industrial solid waste recycling and low-carbon concrete materials, in particular to an alkali-activated steel solid waste-based low-carbon concrete material and a preparation method thereof. The low-carbon concrete is prepared from the following raw materials in parts by weight: 5-15 parts of steel slag, 35-45 parts of mineral slag, 15-45 parts of iron tailings, 45-75 parts of river sand, 100 parts of natural gravel, 1.5-2.5 parts of sodium hydroxide, 7-13 parts of water glass, 0.8 part of a water reducing agent and 20 parts of water. According to the low-carbon concrete provided by the invention, the solid waste in the steel industry is utilized to completely replace cement and partially replace natural fine aggregate, and the mixing amount of each component is optimized through experiments. Under the synergistic effect of the slag and the alkaline activator, the volume expansibility of the steel slag is improved. And good mechanical properties, working performance and environmental benefits are achieved. Compared with traditional cement concrete, consumption of non-renewable resources is avoided, and meanwhile the purposes of low carbon and low energy consumption are achieved. And the method has certain practical significance and popularization value in the fields of comprehensive utilization of solid wastes and low-carbon concrete.
本发明涉及工业固废的再利用和低碳混凝土材料技术领域，更具体地说，它涉及一种碱激发钢铁固废基低碳混凝土材料及制备方法。该低碳混凝土包括以下重量份原料组成：钢渣5‑15份，矿渣35‑45份，铁尾砂15‑45份、河砂45‑75份、天然碎石100份、氢氧化钠1.5‑2.5份、水玻璃7‑13份、减水剂0.8份，水20份。本发明提供的低碳混凝土，利用钢铁工业固废完全取代水泥和部分取代天然细骨料，通过实验对各组分的掺量优化。在矿渣和碱性激发剂的协同作用下改善了钢渣的体积膨胀性。并具有良好的力学性能、工作性能、环境效益。相比于传统水泥混凝土，避免了不可再生资源的消耗，同时达到了低碳、低能耗的目的。对于固体废弃物综合利用和低碳混凝土领域，具有一定的实用意义和推广价值。
Alkali-activated steel solid waste-based low-carbon concrete material and preparation method thereof
一种碱激发钢铁固废基低碳混凝土材料及制备方法
02.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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