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Sulfate-erosion-resistant concrete admixture and preparation method thereof
The invention discloses a sulfate-corrosion-resistant concrete admixture and a preparation method thereof, and relates to the technical field of concrete admixtures. The additive comprises the following components in parts by mass: 40-60 parts of an anti-corrosion component and 100 parts of mineral powder, and the anti-corrosion component is prepared by mixing sodium oxide, silicon oxide and calcium oxide, calcining at high temperature and grinding into additive powder. According to the sulfate-erosion-resistant concrete admixture and the preparation method thereof, the used raw materials are easy to obtain and only comprise two components, the preparation process is simple, and all the components can be put into use after being mechanically mixed; by adding the anti-corrosion component, the internal alkalinity of a concrete pore solution is improved, generation of sulfate erosion products such as ettringite is inhibited, the risk that the concrete is eroded by sulfate is fundamentally reduced, meanwhile, glassy-state high-alkalinity substances are gradually released into the concrete pore solution along with hydration reaction, and the influence on the mechanical property of the concrete is small.
本发明公开了一种混凝土抗硫酸盐侵蚀外加剂及其制备方法，涉及混凝土外加剂技术领域。所述外加剂包括如下质量份数的组分：抗蚀组分40～60份，矿粉100份，所述抗蚀组分由氧化钠、氧化硅、氧化钙混合后，经高温煅烧后研磨成添加剂粉末。该混凝土抗硫酸盐侵蚀外加剂及其制备方法，所使用的原料易得，仅由两种组分组成，制备工艺简单，各组分经机械混合即可投入使用；通过添加抗蚀组分提高混凝土孔溶液内部碱度，抑制钙矾石等硫酸盐侵蚀产物的生成，从根本上降低混凝土受硫酸盐侵蚀的风险，同时玻璃态的高碱性物质将随着水化反应的进行逐步释放进入混凝土孔溶液，对混凝土力学性能影响较少。
Sulfate-erosion-resistant concrete admixture and preparation method thereof
The invention discloses a sulfate-corrosion-resistant concrete admixture and a preparation method thereof, and relates to the technical field of concrete admixtures. The additive comprises the following components in parts by mass: 40-60 parts of an anti-corrosion component and 100 parts of mineral powder, and the anti-corrosion component is prepared by mixing sodium oxide, silicon oxide and calcium oxide, calcining at high temperature and grinding into additive powder. According to the sulfate-erosion-resistant concrete admixture and the preparation method thereof, the used raw materials are easy to obtain and only comprise two components, the preparation process is simple, and all the components can be put into use after being mechanically mixed; by adding the anti-corrosion component, the internal alkalinity of a concrete pore solution is improved, generation of sulfate erosion products such as ettringite is inhibited, the risk that the concrete is eroded by sulfate is fundamentally reduced, meanwhile, glassy-state high-alkalinity substances are gradually released into the concrete pore solution along with hydration reaction, and the influence on the mechanical property of the concrete is small.
本发明公开了一种混凝土抗硫酸盐侵蚀外加剂及其制备方法，涉及混凝土外加剂技术领域。所述外加剂包括如下质量份数的组分：抗蚀组分40～60份，矿粉100份，所述抗蚀组分由氧化钠、氧化硅、氧化钙混合后，经高温煅烧后研磨成添加剂粉末。该混凝土抗硫酸盐侵蚀外加剂及其制备方法，所使用的原料易得，仅由两种组分组成，制备工艺简单，各组分经机械混合即可投入使用；通过添加抗蚀组分提高混凝土孔溶液内部碱度，抑制钙矾石等硫酸盐侵蚀产物的生成，从根本上降低混凝土受硫酸盐侵蚀的风险，同时玻璃态的高碱性物质将随着水化反应的进行逐步释放进入混凝土孔溶液，对混凝土力学性能影响较少。
Sulfate-erosion-resistant concrete admixture and preparation method thereof
一种混凝土抗硫酸盐侵蚀外加剂及其制备方法
ZHANG LIGANG (author) / ZHOU XUEJIN (author) / ZHENG KEREN (author) / DU XIZHEN (author)
2024-04-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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