A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Slow-release long-acting air entraining material as well as preparation method and application thereof
The invention provides a slow-release long-acting air entraining material and a preparation method and application thereof, the slow-release long-acting air entraining material comprises an air entraining agent and a slow-release material wrapping the air entraining agent, and the air entraining agent is an anionic air entraining agent; the structure of the sustained-release material at least contains one carboxyl group, and the melting point of the sustained-release material is 64-102 DEG C; the mass ratio of the air entraining agent to the sustained-release material is (0.3-1.5): 1. The slow-release long-acting air-entraining material is applied to a cement-based material construction process, and the dosage of the slow-release long-acting air-entraining material is 0.01%-0.1% of the mass of a cementing material in the cement-based material. According to the slow-release long-acting air entraining material disclosed by the invention, carboxyl in the slow-release material reacts with alkali, so that the air entraining agent is released; the later-stage gas content of the concrete is adjusted, so that the strength and durability of the hardened concrete are improved, and the freeze-thaw resistance of the concrete is improved.
本发明提供了一种缓释型长效引气材料及其制备方法和应用，缓释型长效引气材料包括引气剂和包裹引气剂的缓释材料，引气剂为阴离子型引气剂；缓释材料结构中至少含有一个羧基，且上述缓释材料熔点为64℃‑102℃；引气剂与缓释材料的质量比为(0.3～1.5):1。缓释型长效引气材料应用于水泥基材料施工工艺过程中，缓释型长效引气材料的用量为上述水泥基材料中胶凝材料质量的0.01％～0.1％。本发明的缓释型长效引气材料通过缓释材料中的羧基与碱反应，进而释放出引气剂；调节混凝土后期含气量，从而提高硬化混凝土的强度和耐久性，改善混凝土的抗冻融性。
Slow-release long-acting air entraining material as well as preparation method and application thereof
The invention provides a slow-release long-acting air entraining material and a preparation method and application thereof, the slow-release long-acting air entraining material comprises an air entraining agent and a slow-release material wrapping the air entraining agent, and the air entraining agent is an anionic air entraining agent; the structure of the sustained-release material at least contains one carboxyl group, and the melting point of the sustained-release material is 64-102 DEG C; the mass ratio of the air entraining agent to the sustained-release material is (0.3-1.5): 1. The slow-release long-acting air-entraining material is applied to a cement-based material construction process, and the dosage of the slow-release long-acting air-entraining material is 0.01%-0.1% of the mass of a cementing material in the cement-based material. According to the slow-release long-acting air entraining material disclosed by the invention, carboxyl in the slow-release material reacts with alkali, so that the air entraining agent is released; the later-stage gas content of the concrete is adjusted, so that the strength and durability of the hardened concrete are improved, and the freeze-thaw resistance of the concrete is improved.
本发明提供了一种缓释型长效引气材料及其制备方法和应用，缓释型长效引气材料包括引气剂和包裹引气剂的缓释材料，引气剂为阴离子型引气剂；缓释材料结构中至少含有一个羧基，且上述缓释材料熔点为64℃‑102℃；引气剂与缓释材料的质量比为(0.3～1.5):1。缓释型长效引气材料应用于水泥基材料施工工艺过程中，缓释型长效引气材料的用量为上述水泥基材料中胶凝材料质量的0.01％～0.1％。本发明的缓释型长效引气材料通过缓释材料中的羧基与碱反应，进而释放出引气剂；调节混凝土后期含气量，从而提高硬化混凝土的强度和耐久性，改善混凝土的抗冻融性。
Slow-release long-acting air entraining material as well as preparation method and application thereof
一种缓释型长效引气材料及其制备方法和应用
QIAO MIN (author) / SHAN GUANGCHENG (author) / GAO NANXIAO (author) / CHEN JIAN (author) / SHEN FEI (author) / YANG TAO (author) / ZENG LUPING (author) / ZHAO SHUANG (author) / ZHU BOSONG (author) / RAN QIANPING (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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