Expansive admixtures are additives used in concrete to induce controlled expansion. They react with alkalis in cement to generate expansive compounds, resulting in controlled expansion after hardening. This expansion compensates for volume changes due to temperature variations, moisture fluctuations, or drying shrinkage, reducing cracking and improving durability. Expansive admixtures are beneficial for concrete subjected to thermal stresses, restrained conditions, or where dimensional stability is crucial. They enhance concrete performance, mitigate cracking, and contribute to the longevity of structures.
1. Calcium sulfoaluminate concrete expansion agent can be used in concrete engineering.
2. Calcium sulfoaluminate-calcium oxide concrete expansion agent can be used in concrete engineering.
3. Calcium oxide concrete expansion agent can be used in concrete engineering.
1. The shrinkage-compensating concrete prepared with an expansion agent is suitable for self-waterproofing of concrete structures, engineering joints, filling and grouting, continuous construction of super-long concrete structures, large-volume concrete projects, etc.; self-stressing prepared with expansion agents Concrete is suitable for self-stressing concrete water pipes, cast-in-place piles, etc.
2. Concrete (mortar) prepared with calcium sulphoaluminate and calcium sulphoaluminate-calcium oxide expansion agents shall not be used in projects where the long-term environmental temperature is above 80°C.
3. Expansion agent is used in reinforced concrete engineering and filling concrete engineering.
Zhengzhou, Henan, China