A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforced concrete admixture and preparation method thereof
The invention relates to the technical field of building materials, in particular to a reinforced concrete admixture and a preparation method thereof.The reinforced concrete admixture comprises modified marble-slag powder, silica fume and an early strength agent; wherein the modified marble-slag powder is prepared by grinding a marble raw material, slag powder and a grinding aid; the grinding aid is prepared by the following steps: dropwise adding alcohol amine, molasses, urea and glycerol into water for reaction, and obtaining the grinding aid after the reaction is finished, the specific surface area of the modified marble-slag powder is 1000-1200 m<2>/kg, the water demand ratio is less than 85%, and the 28d strength activity index is greater than 90%. According to the reinforced concrete admixture provided by the invention, waste marble stones can be recycled in concrete, the stability and the later strength of the concrete can be ensured, the problem of treatment of stone powder wastes is solved, cheap raw materials can be provided for the concrete, and the reinforced concrete admixture has huge economic benefits and wide market application values.
本发明涉及建筑材料技术领域，特别涉及一种增强型混凝土掺合料及其制备方法，其中，增强型混凝土掺合料包括改性大理石‑矿渣粉、硅灰和早强剂；其中，所述改性大理石‑矿渣粉为大理石原料、矿渣粉和助磨剂进行粉磨制得；所述助磨剂为：将醇胺、糖蜜、尿素及甘油滴入水中进行反应，反应完之后得到所述助磨剂；所述述改性大理石‑矿渣粉的比表面积在1000～1200m2/kg，需水量比小于85％，28d强度活性指数大于90％。本发明提供的增强型混凝土掺合料能够将废弃的大理石石料在混凝土进行再利用，且能够保证对混凝土的稳定性和后期强度，既解决了石粉废料的处理问题，又能够为混凝土提供廉价的原料，具有巨大的经济效益和广阔的市场应用价值。
Reinforced concrete admixture and preparation method thereof
The invention relates to the technical field of building materials, in particular to a reinforced concrete admixture and a preparation method thereof.The reinforced concrete admixture comprises modified marble-slag powder, silica fume and an early strength agent; wherein the modified marble-slag powder is prepared by grinding a marble raw material, slag powder and a grinding aid; the grinding aid is prepared by the following steps: dropwise adding alcohol amine, molasses, urea and glycerol into water for reaction, and obtaining the grinding aid after the reaction is finished, the specific surface area of the modified marble-slag powder is 1000-1200 m<2>/kg, the water demand ratio is less than 85%, and the 28d strength activity index is greater than 90%. According to the reinforced concrete admixture provided by the invention, waste marble stones can be recycled in concrete, the stability and the later strength of the concrete can be ensured, the problem of treatment of stone powder wastes is solved, cheap raw materials can be provided for the concrete, and the reinforced concrete admixture has huge economic benefits and wide market application values.
本发明涉及建筑材料技术领域，特别涉及一种增强型混凝土掺合料及其制备方法，其中，增强型混凝土掺合料包括改性大理石‑矿渣粉、硅灰和早强剂；其中，所述改性大理石‑矿渣粉为大理石原料、矿渣粉和助磨剂进行粉磨制得；所述助磨剂为：将醇胺、糖蜜、尿素及甘油滴入水中进行反应，反应完之后得到所述助磨剂；所述述改性大理石‑矿渣粉的比表面积在1000～1200m2/kg，需水量比小于85％，28d强度活性指数大于90％。本发明提供的增强型混凝土掺合料能够将废弃的大理石石料在混凝土进行再利用，且能够保证对混凝土的稳定性和后期强度，既解决了石粉废料的处理问题，又能够为混凝土提供廉价的原料，具有巨大的经济效益和广阔的市场应用价值。
Reinforced concrete admixture and preparation method thereof
一种增强型混凝土掺合料及其制备方法
LI WEITENG (author) / LIN TIANXING (author) / CHEN XIAOBIN (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Seawater-resistant reinforced concrete admixture and preparation method thereof
| European Patent Office | 2020
Reinforced modifier for concrete admixture and preparation method thereof
| European Patent Office | 2022
Concrete admixture, preparation method thereof and concrete added with concrete admixture
| European Patent Office | 2020