Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking concrete with high temperature difference tolerance and preparation method thereof
The invention relates to the technical field of concrete, in particular to anti-cracking concrete with high temperature difference tolerance and a preparation method of the anti-cracking concrete. The concrete comprises the following components in percentage by mass: 10-20% of cement, 10-16% of gravel, 32-38% of water, 6-10% of fly ash, 6-10% of modified polyacrylic acid fibers, 8-15% of an anti-crack expanding agent, 5-10% of a water reducing agent, 3-8% of reinforced fibers, 1-5% of silica fume, 1-5% of a retarder, 0.5-1% of zeolite, 1-3% of limestone powder, 0.5-1% of rice husk, 0.5-1% of an oxygen resin emulsion and 0.5-1% of an accelerant. The preparation method comprises the following steps: uniformly stirring and mixing the cement, the sandstone, the fly ash, the modified polyacrylic acid fiber, the reinforced fiber, the zeolite, the limestone powder and the rice husk through a stirring device, and then adding water to continuously stir and mix to obtain a mixture A. The anti-cracking concrete with strong temperature difference tolerance has the beneficial effects that the fly ash is doped into the concrete, so that the temperature difference tolerance of the concrete is improved; the concrete admixture can replace part of cement, reduce the cost of concrete and protect the environment, and can be complementary with cement in length, balanced and coordinated with the cement and improve the performance of the concrete.
本发明公开了涉及混凝土技术领域，具体为一种温差耐受性强的抗开裂混凝土及其制备方法，各组份按照质量百分比计量：水泥10‑20％、砂石10‑16％、水32‑38％、粉煤灰6‑10％、改性聚丙烯酸纤维6‑10％、抗裂膨胀剂8‑15％、减水剂5‑10％、增强纤维3‑8％、微硅粉1‑5％、缓凝剂1‑5％、沸石0.5‑1％、石灰石粉1‑3％、稻壳0.5‑1％、氧树脂乳液0.5‑1％、促进剂0.5‑1％，先通过搅拌装置将水泥、砂石、粉煤灰、改性聚丙烯酸纤维、增强纤维、沸石、石灰石粉和稻壳均匀的搅拌混合，再加入水继续搅拌混合，得到混合物A，本发明的有益效果是：本发明的温差耐受性强的抗开裂混凝土，通过将粉煤灰掺入混凝土后,不仅可以取代部分水泥,降低混凝土的成本,保护环境,而且能与水泥互补短长,均衡协合,改善混凝土的性能。
Anti-cracking concrete with high temperature difference tolerance and preparation method thereof
The invention relates to the technical field of concrete, in particular to anti-cracking concrete with high temperature difference tolerance and a preparation method of the anti-cracking concrete. The concrete comprises the following components in percentage by mass: 10-20% of cement, 10-16% of gravel, 32-38% of water, 6-10% of fly ash, 6-10% of modified polyacrylic acid fibers, 8-15% of an anti-crack expanding agent, 5-10% of a water reducing agent, 3-8% of reinforced fibers, 1-5% of silica fume, 1-5% of a retarder, 0.5-1% of zeolite, 1-3% of limestone powder, 0.5-1% of rice husk, 0.5-1% of an oxygen resin emulsion and 0.5-1% of an accelerant. The preparation method comprises the following steps: uniformly stirring and mixing the cement, the sandstone, the fly ash, the modified polyacrylic acid fiber, the reinforced fiber, the zeolite, the limestone powder and the rice husk through a stirring device, and then adding water to continuously stir and mix to obtain a mixture A. The anti-cracking concrete with strong temperature difference tolerance has the beneficial effects that the fly ash is doped into the concrete, so that the temperature difference tolerance of the concrete is improved; the concrete admixture can replace part of cement, reduce the cost of concrete and protect the environment, and can be complementary with cement in length, balanced and coordinated with the cement and improve the performance of the concrete.
本发明公开了涉及混凝土技术领域，具体为一种温差耐受性强的抗开裂混凝土及其制备方法，各组份按照质量百分比计量：水泥10‑20％、砂石10‑16％、水32‑38％、粉煤灰6‑10％、改性聚丙烯酸纤维6‑10％、抗裂膨胀剂8‑15％、减水剂5‑10％、增强纤维3‑8％、微硅粉1‑5％、缓凝剂1‑5％、沸石0.5‑1％、石灰石粉1‑3％、稻壳0.5‑1％、氧树脂乳液0.5‑1％、促进剂0.5‑1％，先通过搅拌装置将水泥、砂石、粉煤灰、改性聚丙烯酸纤维、增强纤维、沸石、石灰石粉和稻壳均匀的搅拌混合，再加入水继续搅拌混合，得到混合物A，本发明的有益效果是：本发明的温差耐受性强的抗开裂混凝土，通过将粉煤灰掺入混凝土后,不仅可以取代部分水泥,降低混凝土的成本,保护环境,而且能与水泥互补短长,均衡协合,改善混凝土的性能。
Anti-cracking concrete with high temperature difference tolerance and preparation method thereof
一种温差耐受性强的抗开裂混凝土及其制备方法
HUANG XIAODONG (Autor:in) / FENG YONG (Autor:in) / LIU JIAWEN (Autor:in) / CHEN GUANBIN (Autor:in) / LI LIN (Autor:in)
15.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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