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A platform for research: civil engineering, architecture and urbanism
Self-gelling steel slag graded broken stone and preparation method thereof
The invention relates to self-gelling steel slag graded broken stone and a preparation method thereof, belongs to the technical field of solid waste treatment, and solves one of the problems that in the prior art, steel slag graded broken stone needs to be additionally added with a binding material, the soaking expansion rate is large, and the mechanical property is poor. The self-gelling steel slag graded broken stone disclosed by the invention is prepared from aged steel slag aggregate subjected to activating treatment through a surface exciting agent, and the surface exciting agent comprises the following specific components in percentage by mass: 50-60% of tripotassium citrate, 30-40% of trisodium citrate and 10-20% of sodium silicate, totaling 100%. The steel slag graded broken stone can be formed without additionally adding a binding material, has excellent mechanical strength, deformation resistance and low water immersion expansion rate, can be widely applied to the fields of pavement paving, concrete preparation and the like, and realizes absorption of the steel slag solid waste at the same time.
本发明涉及一种自胶凝的钢渣级配碎石及其制备方法，属于固废处理技术领域，解决了现有技术中钢渣级配碎石需要额外添加结合料、浸水膨胀率大和力学性能较差等问题之一。本发明公开的自胶凝的钢渣级配碎石是通过表面激发剂活化处理后的陈化钢渣集料制得，该种表面激发剂的具体组成按质量计为：柠檬酸三钾50‑60％，柠檬酸三钠30‑40％，硅酸钠10‑20％，合计为100％。上述钢渣级配碎石无需额外添加结合料即可成型，具有优异的力学强度、抗形变能力和低浸水膨胀率，能够广泛应用于路面铺设、混凝土制备等领域，同时实现了钢渣固体废料的消纳。
Self-gelling steel slag graded broken stone and preparation method thereof
The invention relates to self-gelling steel slag graded broken stone and a preparation method thereof, belongs to the technical field of solid waste treatment, and solves one of the problems that in the prior art, steel slag graded broken stone needs to be additionally added with a binding material, the soaking expansion rate is large, and the mechanical property is poor. The self-gelling steel slag graded broken stone disclosed by the invention is prepared from aged steel slag aggregate subjected to activating treatment through a surface exciting agent, and the surface exciting agent comprises the following specific components in percentage by mass: 50-60% of tripotassium citrate, 30-40% of trisodium citrate and 10-20% of sodium silicate, totaling 100%. The steel slag graded broken stone can be formed without additionally adding a binding material, has excellent mechanical strength, deformation resistance and low water immersion expansion rate, can be widely applied to the fields of pavement paving, concrete preparation and the like, and realizes absorption of the steel slag solid waste at the same time.
本发明涉及一种自胶凝的钢渣级配碎石及其制备方法，属于固废处理技术领域，解决了现有技术中钢渣级配碎石需要额外添加结合料、浸水膨胀率大和力学性能较差等问题之一。本发明公开的自胶凝的钢渣级配碎石是通过表面激发剂活化处理后的陈化钢渣集料制得，该种表面激发剂的具体组成按质量计为：柠檬酸三钾50‑60％，柠檬酸三钠30‑40％，硅酸钠10‑20％，合计为100％。上述钢渣级配碎石无需额外添加结合料即可成型，具有优异的力学强度、抗形变能力和低浸水膨胀率，能够广泛应用于路面铺设、混凝土制备等领域，同时实现了钢渣固体废料的消纳。
Self-gelling steel slag graded broken stone and preparation method thereof
一种自胶凝的钢渣级配碎石及其制备方法
HE YONGHAI (author) / TANAKA DAN (author) / ZHANG ZHENGQI (author) / LEI WEI (author) / PU CHANGYU (author) / MENG HUILIN (author) / XIANG HONGWEI (author) / MA HONGYI (author) / WANG QINGKAI (author) / WANG XIAOSEN (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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