Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement using stainless steel slag tailing mud as admixture and preparation method thereof
The invention discloses cement using stainless steel slag tailing mud as an admixture and a preparation method thereof, and belongs to the technical field of building materials. The cement comprises the following components in parts by weight: 50-95 parts of Portland cement clinker, 15-20 parts of stainless steel slag tailing mud, and 3-6 parts of gypsum. According to the invention, the stainlesssteel slag tailing mud waste residues are used in cement, the prepared cement has standard consistency of not greater than 28%, initial setting time of not less than 45 min, final setting time of notmore than 600 min and qualified stability, the content of water-soluble hexavalent chromium in cement is not greater than 10 mg/kg, the content of chloride ions is not greater than 0.06%, the compressive strength is not less than 42.5 MPa, and the heavy metal leaching value meets standard requirements, thereby not only facilitating reduction of the comprehensive cost of cement and reduction of energy consumption, but also being of great significance to environmental protection.
本发明公开了一种利用不锈钢渣尾泥作混合材的水泥及其制备方法，属于建筑材料技术领域，所述水泥各组成分占重量份数：硅酸盐水泥熟料50～95份，不锈钢渣尾泥15～20份，石膏3～6份。本发明将不锈钢渣尾泥废渣用于水泥中，制备出的水泥标准稠度≤28％，初凝时间≥45min，终凝时间≤600min，安定性合格，水泥中水溶性六价铬含量≤10mg/kg，氯离子含量≤0.06％，抗压强度≥42.5MPa等级，重金属浸出值符合规范要求，既有利水泥综合成本降低，降低能耗，又能对环境保护产生重大意义。
Cement using stainless steel slag tailing mud as admixture and preparation method thereof
The invention discloses cement using stainless steel slag tailing mud as an admixture and a preparation method thereof, and belongs to the technical field of building materials. The cement comprises the following components in parts by weight: 50-95 parts of Portland cement clinker, 15-20 parts of stainless steel slag tailing mud, and 3-6 parts of gypsum. According to the invention, the stainlesssteel slag tailing mud waste residues are used in cement, the prepared cement has standard consistency of not greater than 28%, initial setting time of not less than 45 min, final setting time of notmore than 600 min and qualified stability, the content of water-soluble hexavalent chromium in cement is not greater than 10 mg/kg, the content of chloride ions is not greater than 0.06%, the compressive strength is not less than 42.5 MPa, and the heavy metal leaching value meets standard requirements, thereby not only facilitating reduction of the comprehensive cost of cement and reduction of energy consumption, but also being of great significance to environmental protection.
本发明公开了一种利用不锈钢渣尾泥作混合材的水泥及其制备方法，属于建筑材料技术领域，所述水泥各组成分占重量份数：硅酸盐水泥熟料50～95份，不锈钢渣尾泥15～20份，石膏3～6份。本发明将不锈钢渣尾泥废渣用于水泥中，制备出的水泥标准稠度≤28％，初凝时间≥45min，终凝时间≤600min，安定性合格，水泥中水溶性六价铬含量≤10mg/kg，氯离子含量≤0.06％，抗压强度≥42.5MPa等级，重金属浸出值符合规范要求，既有利水泥综合成本降低，降低能耗，又能对环境保护产生重大意义。
Cement using stainless steel slag tailing mud as admixture and preparation method thereof
一种利用不锈钢渣尾泥作混合材的水泥及其制备方法
NI YAFENG (Autor:in) / TANG XIAOCHUN (Autor:in) / DONG JIANMIAO (Autor:in) / DENG YULIAN (Autor:in) / LIU JI (Autor:in) / JIANG JIUFANG (Autor:in) / LIAO SHUANGSHUANG (Autor:in) / LONG SHENGKANG (Autor:in)
19.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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