Calcium formate as a new type of early strength agent has a dual role.
It can not only speed up the hardening speed of cement, improve the early strength, but also avoid the construction in winter or low temperature and humidity, the setting speed is too slow, so that the cement product can be put into use as soon as possible to improve the strength, especially the early strength contribution.
For a long time, calcium chloride has been used in the project, but calcium chloride has the effect of corroding steel bars, and chlorine free coagulant has been developed at home and abroad. Calcium formate is a new type of early strength material, which can effectively accelerate the hydration of calcium silicate C3S in cement and increase the early strength of cement mortar, but it will not cause corrosion to steel bars or pollute the environment. Therefore, it is also widely used in oilfield drilling and cementing.
Product features Speed up the hardening of cement and shorten the construction period. Shorten setting time, early forming.
Improve the early strength of mortar at low temperature. Antifreeze and rust. Technical properties and characteristics Calcium formate is white or off-white crystalline powder.
Under standard curing conditions, this product can make concrete in 4 hours final solidification. In about 8 hours, its strength can reach more than 5Mpa, which can make the cast-in-place concrete successfully demoulded. While ensuring the early strength of mortar and concrete, the late strength of mortar and concrete can increase normally, and there is no damage to other technical properties of mortar and concrete.
Applicable scope for ceramic tile binder, cement-based plastering mortar, repair mortar, waterproof mortar, insulation mortar wear-resistant floor and putty and other products, can improve the product density and extend the opening time of calcium formate content generally does not exceed 1.2% of the total mortar.
Calcium formate is incompatible with other auxiliaries, and can be mixed evenly with cement, sand and other auxiliaries in a certain proportion in the mixer.
Solubility in water (g/100ml) Dissolved grams per 100ml of water at different temperatures (℃) :16.1g/0℃; 16.6 g / 20 ℃; 40 ℃ 17.1 g / 17.5 g / 60 ℃; 17.9 g / 80 ℃; 18.4g/100 ° C.
Post time: Jun-25-2024