Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Etringite early strength agent for sulphoaluminate cement as well as preparation method and application of ettringite early strength agent
The invention discloses an ettringite early strength agent for sulfur-aluminum cement as well as a preparation method and application thereof, and belongs to the technical field of concrete admixtures. The functional component of the early strength agent is ettringite, the ettringite is in a short rod shape and has three sizes, the size distribution and the percentage of the ettringite accounting for the total mass of the ettringite are as follows: the diameter is 40-50nm, and the proportion is 40-80%; the diameter is 70-90 nm, and the proportion is 10-30%; the diameter is 120-150nm, and the proportion is 10%-30%. The early strength agent is obtained by compounding ettringite seed crystals with proper sizes according to a specific proportion, so that the early strength of the sulfate cement is remarkably improved, the problem that the later strength of the sulfate cement is attenuated can be effectively avoided, and the mechanical property of the sulfate cement is remarkably improved.
本发明公开一种硫铝水泥用钙矾石早强剂及其制备方法和应用，属于混凝土外加剂技术领域。所述早强剂的功能组分为钙矾石，所述钙矾石呈短棒状，包括三种尺寸，各尺寸分布及占所述钙矾石总质量的百分比为：直径40~50nm，占比40%~80%；直径70~90nm，占比10%~30%；直径120~150nm，占比10%~30%。本发明通过将合适尺寸的钙矾石晶种以特定比例进行复合得到早强剂，在显著改善硫酸酸盐水泥早期强度同时，可有效避免硫铝酸盐水泥后期强度衰减的问题，明显提升硫酸酸盐系水泥的力学性能。
Etringite early strength agent for sulphoaluminate cement as well as preparation method and application of ettringite early strength agent
The invention discloses an ettringite early strength agent for sulfur-aluminum cement as well as a preparation method and application thereof, and belongs to the technical field of concrete admixtures. The functional component of the early strength agent is ettringite, the ettringite is in a short rod shape and has three sizes, the size distribution and the percentage of the ettringite accounting for the total mass of the ettringite are as follows: the diameter is 40-50nm, and the proportion is 40-80%; the diameter is 70-90 nm, and the proportion is 10-30%; the diameter is 120-150nm, and the proportion is 10%-30%. The early strength agent is obtained by compounding ettringite seed crystals with proper sizes according to a specific proportion, so that the early strength of the sulfate cement is remarkably improved, the problem that the later strength of the sulfate cement is attenuated can be effectively avoided, and the mechanical property of the sulfate cement is remarkably improved.
本发明公开一种硫铝水泥用钙矾石早强剂及其制备方法和应用，属于混凝土外加剂技术领域。所述早强剂的功能组分为钙矾石，所述钙矾石呈短棒状，包括三种尺寸，各尺寸分布及占所述钙矾石总质量的百分比为：直径40~50nm，占比40%~80%；直径70~90nm，占比10%~30%；直径120~150nm，占比10%~30%。本发明通过将合适尺寸的钙矾石晶种以特定比例进行复合得到早强剂，在显著改善硫酸酸盐水泥早期强度同时，可有效避免硫铝酸盐水泥后期强度衰减的问题，明显提升硫酸酸盐系水泥的力学性能。
Etringite early strength agent for sulphoaluminate cement as well as preparation method and application of ettringite early strength agent
一种硫铝水泥用钙矾石早强剂及其制备方法和应用
TONG YU (Autor:in) / SU XINMENG (Autor:in) / FANG YANFENG (Autor:in) / DING XIANGQUN (Autor:in) / LI XIAO (Autor:in)
28.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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