The Application Scenario of the Combination of Amorphous calcium aluminate and Tartaric acid
By acacem.com
Original Ariticles, No Reprinting
Dated Feb. 13, 2023
Keywords
Amorphous calcium aluminate, tartaric acid, concrete accelerator, low temperature concreting
As we all know, due to its excellent hydration activity, amorphous calcium aluminate can quickly react with ordinary Portland cement to form ettringite, thereby greatly shortening the setting time, and has excellent early strength and high strength characteristics; therefore, it is currently the world's The ideal accelerator product in the range.
However, due to the fast reaction time of amorphous calcium aluminate, its workability is affected during construction, so tartaric acid is used as a coagulant. By adjusting the amount of tartaric acid, the purpose of controlling the setting time of concrete can be achieved. And the compound compatibility effect of tartaric acid and amorphous calcium aluminate is very good.
Currently known application scenarios for the combination of amorphous calcium aluminate and tartaric acid:
1. Winter concrete pouring construction in low-temperature and high-cold regions;
2. Underwater concrete pouring;
3. UHPC and high-performance concrete prefabricated parts;
4. Rapid repair of highways and airport runways, emergency construction;
5. Shotcrete in the tunnel;
