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The role of calcium formate in mortar

The role of calcium formate in mortar

2026-01-05

Calcium formate plays several important roles in mortar, as follows:

1. Enhance the strength of mortar

Calcium formate can significantly enhance the strength and compressive resistance of mortar, playing a reinforcing role in concrete and making the mortar more solid and durable. For instance, adding calcium formate to concrete can significantly enhance its early strength. After 24 hours, the strength can reach over 90% of the designed strength, with a compressive strength ratio of 254% within 24 hours. After 36 hours, the strength can reach over 100% of the designed strength, and after 28 days, the strength can reach over 120% of the designed strength. This can greatly shorten the construction period.

2. Increase the bonding strength of mortar

Calcium formate can enable mortar to bond various materials better, especially bricks and stones, reduce the slippage and hollowing between mortar and base materials, and eliminate the deformation and cracks of mortar.

3. Reduce water seepage

Calcium formate can reduce the capillary pores and cracks in mortar, thereby preventing water penetration and making the mortar more durable.

4. Prevent cracking

Adding calcium formate to mortar can promote the shrinkage of mortar, reduce the risk of cracking, and ensure the integrity and aesthetics of buildings.

5. Adjust the setting time of the mortar

The addition of calcium formate can significantly slow down the setting speed of mortar, providing construction workers with more ample time to complete complex construction operations. This feature is particularly important in large-scale projects or those that require long-term construction. It not only enhances work efficiency but also ensures the stability of construction quality.

6. Improve the fluidity of mortar

The addition of calcium formate can reduce the viscosity of mortar, improve its fluidity, and make the mortar easier to flow and fill during the construction process. It not only improved the construction efficiency but also reduced the construction cost.

7. Enhance the crack resistance of mortar

The addition of calcium formate can effectively improve the crack resistance of mortar and reduce the occurrence of cracks. This feature is of great significance for extending the service life of buildings, enhancing their stability and safety.

8. It has excellent waterproof performance

The addition of calcium formate can enhance the waterproof performance of mortar, enabling it to remain stable when eroded by moisture. This characteristic is of great significance for protecting the structure and walls of buildings and preventing water seepage.

 

In conclusion, calcium formate in mortar has the functions of enhancing strength and adhesion, reducing cracking and water seepage, and is widely used in construction, decoration, industry and other fields. During the usage process, it is recommended to control the dosage and proportion according to specific needs to avoid unnecessary problems caused by excessive use.