Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sulfate-erosion-resistant concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses sulfate corrosion resistant concrete and a preparation method thereof.The concrete is prepared from water, cement, fly ash, a sulfate corrosion resistant agent, fine aggregate, coarse aggregate and a polycarboxylate superplasticizer; wherein the residue on sieve of a 45 [mu] m square hole sieve is 45-53%, the 28d strength activity index is 62-69%, and the content of CaO in the chemical components is 10-15%; the sulfate corrosion resistant agent is prepared from tailing slag, water glass, barium salt, neoprene latex and a latex modifier, the tailing slag comprises at least one of lithium ore, iron ore, copper ore, chromium ore and manganese ore, and the Si/Ca mass ratio of the tailing slag is 4.6-7.8. According to the invention, the utilization problem of the low-grade fly ash in the concrete is solved, and a very good sulfate erosion resistance effect is also achieved.
本申请涉及混凝土技术领域，具体公开了一种抗硫酸盐侵蚀混凝土及其制备方法，混凝土包括以下组分：水，水泥，粉煤灰，抗硫酸盐腐蚀剂，细骨料，粗骨料，聚羧酸减水剂；其中，粉煤灰45μm方孔筛筛余为45％～53％，28d强度活性指数为62‑69％，化学成分中CaO含量为10％～15％；抗硫酸盐腐蚀剂由包括尾矿渣、水玻璃、钡盐、氯丁胶乳、胶乳改性剂的原料组分，尾矿渣包括锂矿、铁矿、铜矿、铬矿、锰矿中至少一种的尾渣，尾矿渣的Si/Ca质量比为4.6～7.8。本申请不仅解决了低品位粉煤灰在混凝土中的利用问题，还起到了很好的抗硫酸盐侵蚀的效果。
Sulfate-erosion-resistant concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses sulfate corrosion resistant concrete and a preparation method thereof.The concrete is prepared from water, cement, fly ash, a sulfate corrosion resistant agent, fine aggregate, coarse aggregate and a polycarboxylate superplasticizer; wherein the residue on sieve of a 45 [mu] m square hole sieve is 45-53%, the 28d strength activity index is 62-69%, and the content of CaO in the chemical components is 10-15%; the sulfate corrosion resistant agent is prepared from tailing slag, water glass, barium salt, neoprene latex and a latex modifier, the tailing slag comprises at least one of lithium ore, iron ore, copper ore, chromium ore and manganese ore, and the Si/Ca mass ratio of the tailing slag is 4.6-7.8. According to the invention, the utilization problem of the low-grade fly ash in the concrete is solved, and a very good sulfate erosion resistance effect is also achieved.
本申请涉及混凝土技术领域，具体公开了一种抗硫酸盐侵蚀混凝土及其制备方法，混凝土包括以下组分：水，水泥，粉煤灰，抗硫酸盐腐蚀剂，细骨料，粗骨料，聚羧酸减水剂；其中，粉煤灰45μm方孔筛筛余为45％～53％，28d强度活性指数为62‑69％，化学成分中CaO含量为10％～15％；抗硫酸盐腐蚀剂由包括尾矿渣、水玻璃、钡盐、氯丁胶乳、胶乳改性剂的原料组分，尾矿渣包括锂矿、铁矿、铜矿、铬矿、锰矿中至少一种的尾渣，尾矿渣的Si/Ca质量比为4.6～7.8。本申请不仅解决了低品位粉煤灰在混凝土中的利用问题，还起到了很好的抗硫酸盐侵蚀的效果。
Sulfate-erosion-resistant concrete and preparation method thereof
一种抗硫酸盐侵蚀混凝土及其制备方法
LI KE (Autor:in) / DING XUESONG (Autor:in) / GE XUELIANG (Autor:in) / ZHAO WANQING (Autor:in) / GUO XING (Autor:in) / YANG HU (Autor:in) / PENG XIAOJUN (Autor:in) / LIU WEIBAO (Autor:in) / CHEN XIAOXIA (Autor:in) / YOOK CHAE-YOUNG (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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