Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-heat cementing material and preparation method thereof
The invention discloses a low-heat cementing material, which is prepared from the following ingredients in parts by weight: 50 to 60 parts of cement clinker, 30 to 40 parts of graded fly ash, 0 to 10 parts of gypsum, 5 to 10 parts of exciting agents and 0.1 to 0.3 part of conditioning agents. The graded fly ash comprises the following components in parts by weight: 50-60 parts of original-state fly ash, 20-30 parts of medium-fine fly ash and 10-20 parts of superfine fly ash; the exciting agent is a mixture of modified metakaolin and high titanium slag micropowder according to a mass ratio of 1: 1; the conditioning agent is prepared from the following components in parts by weight: 40 to 50 parts of 2-hydroxyphosphonoacetic acid, 20 to 30 parts of tartaric acid and 20 to 30 parts of sodium thiocyanate; according to the invention, the early hydration reaction heat is reduced, the early mechanical property is improved, the collaborative development of low heat and early strength is realized, and the problem of contradiction between early strength and low hydration heat under a portland cement-based cementing material composition system in the prior art is solved.
本发明公开了一种低热胶凝材料，组成按重量份数计如下：水泥熟料50～60份、分级粉煤灰30～40份、石膏0～10份、激发剂5～10份、调节剂0.1～0.3份；所述分级粉煤灰按按重量份数计为原状粉煤灰50～60份、中细粉煤灰20～30份和超细粉煤灰10～20份；所述激发剂为改性偏高岭土和高钛矿渣微粉按质量比1:1的混合物；所述调节剂按重量份数计为2‑羟基膦酰基乙酸40～50份、酒石酸20～30份、硫氰酸钠20～30份；本发明降低其早期水化反应热，且提高早期力学性能，实现低热、早强的协同发展，解决现有技术中硅酸盐水泥基胶凝材料组成体系下早强与低水化热相矛盾的问题。
Low-heat cementing material and preparation method thereof
The invention discloses a low-heat cementing material, which is prepared from the following ingredients in parts by weight: 50 to 60 parts of cement clinker, 30 to 40 parts of graded fly ash, 0 to 10 parts of gypsum, 5 to 10 parts of exciting agents and 0.1 to 0.3 part of conditioning agents. The graded fly ash comprises the following components in parts by weight: 50-60 parts of original-state fly ash, 20-30 parts of medium-fine fly ash and 10-20 parts of superfine fly ash; the exciting agent is a mixture of modified metakaolin and high titanium slag micropowder according to a mass ratio of 1: 1; the conditioning agent is prepared from the following components in parts by weight: 40 to 50 parts of 2-hydroxyphosphonoacetic acid, 20 to 30 parts of tartaric acid and 20 to 30 parts of sodium thiocyanate; according to the invention, the early hydration reaction heat is reduced, the early mechanical property is improved, the collaborative development of low heat and early strength is realized, and the problem of contradiction between early strength and low hydration heat under a portland cement-based cementing material composition system in the prior art is solved.
本发明公开了一种低热胶凝材料，组成按重量份数计如下：水泥熟料50～60份、分级粉煤灰30～40份、石膏0～10份、激发剂5～10份、调节剂0.1～0.3份；所述分级粉煤灰按按重量份数计为原状粉煤灰50～60份、中细粉煤灰20～30份和超细粉煤灰10～20份；所述激发剂为改性偏高岭土和高钛矿渣微粉按质量比1:1的混合物；所述调节剂按重量份数计为2‑羟基膦酰基乙酸40～50份、酒石酸20～30份、硫氰酸钠20～30份；本发明降低其早期水化反应热，且提高早期力学性能，实现低热、早强的协同发展，解决现有技术中硅酸盐水泥基胶凝材料组成体系下早强与低水化热相矛盾的问题。
Low-heat cementing material and preparation method thereof
一种低热胶凝材料及其制备方法
ZHANG WUZONG (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Cementing material, preparation method thereof and grouting material containing cementing material
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2020