The role of calcium formate as early strength agent


As a new type of early strength agent, calcium formate has dual functions, which can not only accelerate the hardening speed of cement and improve the early strength, but also avoid the slow setting speed in winter construction or under low temperature and humidity, so that cement products can be put into use as soon as possible with high strength, which contributes greatly to the early strength.

For a long time, calcium chloride has been widely used in engineering, but it can corrode steel bars and develop chlorine-free accelerator. Calcium formate is a new type of early strength material, which can effectively accelerate the hydration of tricalcium silicate C3S in cement and increase the early strength of cement mortar, but it will not cause corrosion to steel bars and pollution to the environment, so it is also widely used in oil field drilling and cementing.

He'' nan jiarun calcium formate


Product features:
Accelerate the hardening speed of cement and shorten the construction period. Shorten the setting time and form early. Improve the early strength of mortar at low temperature. Anti-freezing and anti-rust.
Technical performance and characteristics Calcium formate is white or grayish white crystalline powder. Under standard curing conditions, this product can make the concrete final set within 4 hours. The strength can reach more than 5Mpa in about 8 hours, and the cast-in-place concrete can be demoulded smoothly.



At the same time, the early strength of mortar and concrete can make the late strength of mortar and concrete increase normally, and it has no destructive effect on other technical properties of mortar and concrete.
Scope of application: It is used in products such as ceramic tile adhesive, cement-based plastering mortar, repair mortar, waterproof mortar, thermal insulation mortar, wear-resistant floor and putty, etc., which can improve the compactness of products and extend the opening time, and the amount of calcium formate added generally does not exceed 1.2% of the total mortar.

Calcium formate is not incompatible with other additives, but can be mixed with cement, sand and other additives in a blender in proportion.