Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Clinker and molybdenum tailing sand dry-mixed mortar and preparation method thereof
The invention relates to clinker and molybdenum tailing sand dry-mixed mortar and a preparation method thereof, and belongs to the field of comprehensive utilization of solid waste resources, the clinker and molybdenum tailing sand dry-mixed mortar comprises the following components by mass: 16.5-18.4 parts of Portland cement clinker, 0.4-0.6 part of desulfurized gypsum, 70-73 parts of molybdenum tailing sand, 0.5-0.7 part of cellulose ether, and 8.5-11.5 parts of molybdenum tailing micro powder. According to the performance, the water retention rate is larger than or equal to 99%, the initial consistency is 70-80 mm, the 7-day compressive strength is larger than or equal to 3.8 MPa, the 28-day compressive strength is larger than or equal to 7 MPa, and the 14-day bonding strength is larger than or equal to 0.4 MPa Portland cement clinker is used as a cementing material, and molybdenum tailing micropowder is used as an admixture. The molybdenum tailing micropowder is used for replacing fly ash, and meanwhile, the molybdenum tailing sand is used for replacing natural sand to serve as aggregate, so that the utilization rate of the molybdenum tailings is greatly increased, and the problems of massive accumulation of the molybdenum tailings and environmental damage caused by natural sand mining are solved under the condition of saving the cost.
一种熟料和钼尾矿砂干混砂浆及其制备方法，属于固体废物资源综合利用领域，其组分按质量份数计：硅酸盐水泥熟料16.5～18.4份，脱硫石膏0.4～0.6份，钼尾矿砂70～73份，纤维素醚0.5～0.7份，钼尾矿微粉8.5～11.5份。性能为：保水率≥99％，初始稠度70～80mm，7天抗压强度≥3.8MPa，28天抗压强度≥7MPa，14天粘结强度≥0.4MPa。本发明采用硅酸盐水泥熟料作为胶凝材料，钼尾矿微粉作为掺合料。利用钼尾矿微粉替代粉煤灰，同时利用钼尾矿砂代替天然砂作为骨料，大大地提高了钼尾矿的利用率，在节约成本的条件下解决了钼尾矿大量堆积及开采天然砂的环境破坏问题。
Clinker and molybdenum tailing sand dry-mixed mortar and preparation method thereof
The invention relates to clinker and molybdenum tailing sand dry-mixed mortar and a preparation method thereof, and belongs to the field of comprehensive utilization of solid waste resources, the clinker and molybdenum tailing sand dry-mixed mortar comprises the following components by mass: 16.5-18.4 parts of Portland cement clinker, 0.4-0.6 part of desulfurized gypsum, 70-73 parts of molybdenum tailing sand, 0.5-0.7 part of cellulose ether, and 8.5-11.5 parts of molybdenum tailing micro powder. According to the performance, the water retention rate is larger than or equal to 99%, the initial consistency is 70-80 mm, the 7-day compressive strength is larger than or equal to 3.8 MPa, the 28-day compressive strength is larger than or equal to 7 MPa, and the 14-day bonding strength is larger than or equal to 0.4 MPa Portland cement clinker is used as a cementing material, and molybdenum tailing micropowder is used as an admixture. The molybdenum tailing micropowder is used for replacing fly ash, and meanwhile, the molybdenum tailing sand is used for replacing natural sand to serve as aggregate, so that the utilization rate of the molybdenum tailings is greatly increased, and the problems of massive accumulation of the molybdenum tailings and environmental damage caused by natural sand mining are solved under the condition of saving the cost.
一种熟料和钼尾矿砂干混砂浆及其制备方法，属于固体废物资源综合利用领域，其组分按质量份数计：硅酸盐水泥熟料16.5～18.4份，脱硫石膏0.4～0.6份，钼尾矿砂70～73份，纤维素醚0.5～0.7份，钼尾矿微粉8.5～11.5份。性能为：保水率≥99％，初始稠度70～80mm，7天抗压强度≥3.8MPa，28天抗压强度≥7MPa，14天粘结强度≥0.4MPa。本发明采用硅酸盐水泥熟料作为胶凝材料，钼尾矿微粉作为掺合料。利用钼尾矿微粉替代粉煤灰，同时利用钼尾矿砂代替天然砂作为骨料，大大地提高了钼尾矿的利用率，在节约成本的条件下解决了钼尾矿大量堆积及开采天然砂的环境破坏问题。
Clinker and molybdenum tailing sand dry-mixed mortar and preparation method thereof
一种熟料和钼尾矿砂干混砂浆及其制备方法
ZHU TIANMING (Autor:in) / XU CHENGZHUANG (Autor:in) / WU XU (Autor:in) / CHEN DONGLEI (Autor:in) / HU ZIHAO (Autor:in) / SU LEI (Autor:in) / ZHANG RUIJIE (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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