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A platform for research: civil engineering, architecture and urbanism
Regenerated micro-powder concrete mixed material and preparation method thereof
The invention discloses a recycled micro-powder concrete mixed material which comprises the following components in parts by mass: 500-700 parts of Portland cement, 200-300 parts of coarse aggregate, 50-80 parts of fine aggregate, 30-50 parts of recycled aggregate micro-powder, 20-40 parts of high-temperature-resistant fiber, 20-40 parts of silicon carbide, 400-800 parts of fly ash, 10-16 parts of an additive, 4-8 parts of calcium carbonate, 2-4 parts of zinc sulfate and 300-500 parts of water. The invention also discloses a preparation method of the concrete mixed material, which comprises the following steps: weighing the Portland cement, the coarse aggregate, the fine aggregate, the recycled aggregate micro powder, the additive and the water according to the proportion, stirring and mixing to obtain a first mixture; weighing the high-temperature-resistant fibers and the silicon carbide according to the proportion, heating and mixing to obtain a second mixture; adding fly ash into the second mixture to obtain a third mixture; and stirring and mixing the first mixture and the third mixture. The concrete mixed material not only has strong compression resistance and tensile resistance, but also has good crack resistance and heat resistance, and also can reduce the generation of concrete cracks.
本发明公开了一种再生微粉混凝土混合材料，按照质量份包括如下组分：硅酸盐水泥500‑700份、粗骨料200‑300份、细骨料50‑80份、再生骨料微粉末30‑50份、耐高温纤维20‑40份、碳化硅20‑40份、粉煤灰400‑800份、外加剂10‑16份、碳酸钙和4‑8份、硫酸锌2‑4份，水300‑500份。本发明还公开了该混凝土混合材料的制备方法，包括如下步骤：按照配比称取硅酸盐水泥、粗骨料、细骨料、再生骨料微粉末、外加剂和水搅拌混合，得到第一混合物；按照配比称取耐高温纤维、碳化硅加热混合，得到第二混合物；向第二混合物中加入粉煤灰，得到第三混合物；将第一混合物与第三混合物搅拌混合。该混凝土混合材料不仅抗压、抗拉伸能力强，同时具有良好的抗裂性以及耐热性，还能减少混凝土裂纹的产生。
Regenerated micro-powder concrete mixed material and preparation method thereof
The invention discloses a recycled micro-powder concrete mixed material which comprises the following components in parts by mass: 500-700 parts of Portland cement, 200-300 parts of coarse aggregate, 50-80 parts of fine aggregate, 30-50 parts of recycled aggregate micro-powder, 20-40 parts of high-temperature-resistant fiber, 20-40 parts of silicon carbide, 400-800 parts of fly ash, 10-16 parts of an additive, 4-8 parts of calcium carbonate, 2-4 parts of zinc sulfate and 300-500 parts of water. The invention also discloses a preparation method of the concrete mixed material, which comprises the following steps: weighing the Portland cement, the coarse aggregate, the fine aggregate, the recycled aggregate micro powder, the additive and the water according to the proportion, stirring and mixing to obtain a first mixture; weighing the high-temperature-resistant fibers and the silicon carbide according to the proportion, heating and mixing to obtain a second mixture; adding fly ash into the second mixture to obtain a third mixture; and stirring and mixing the first mixture and the third mixture. The concrete mixed material not only has strong compression resistance and tensile resistance, but also has good crack resistance and heat resistance, and also can reduce the generation of concrete cracks.
本发明公开了一种再生微粉混凝土混合材料，按照质量份包括如下组分：硅酸盐水泥500‑700份、粗骨料200‑300份、细骨料50‑80份、再生骨料微粉末30‑50份、耐高温纤维20‑40份、碳化硅20‑40份、粉煤灰400‑800份、外加剂10‑16份、碳酸钙和4‑8份、硫酸锌2‑4份，水300‑500份。本发明还公开了该混凝土混合材料的制备方法，包括如下步骤：按照配比称取硅酸盐水泥、粗骨料、细骨料、再生骨料微粉末、外加剂和水搅拌混合，得到第一混合物；按照配比称取耐高温纤维、碳化硅加热混合，得到第二混合物；向第二混合物中加入粉煤灰，得到第三混合物；将第一混合物与第三混合物搅拌混合。该混凝土混合材料不仅抗压、抗拉伸能力强，同时具有良好的抗裂性以及耐热性，还能减少混凝土裂纹的产生。
Regenerated micro-powder concrete mixed material and preparation method thereof
一种再生微粉混凝土混合材料及制备方法
WEI YING (author) / WANG YONGAN (author) / ZHENG FUPENG (author) / WANG YUNNAN (author) / YANG BO (author) / ZHANG BO (author) / GAO LONG (author)
2023-05-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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