The main impact of seasonal changes on mortar

The impact of seasonal changes on mortar is mainly reflected in the differences in temperature and humidity. The differences in temperature and humidity have a significant impact on mortar.
If you want the mortar to achieve good construction results during construction. The key is whether the mortar can be properly adjusted according to seasonal changes.
The water absorption time of mortar is different in different seasons. The humidity, temperature, air mobility, etc. of the environment will have a certain impact on the construction of mortar. The setting time of mortar is also difficult to control.

Common problems of mortar in different seasons

Different seasons mainly affect the setting time and water absorption time of mortar through temperature and humidity. And then affect the working performance of mortar.
In the early spring rainy season, due to sufficient rain, the temperature is relatively low. The humidity of the air is relatively high, and the moisture on the surface of the mortar is relatively slow. It is in a state of high water retention. In this state, the setting time and water absorption time of the mortar will also be longer. Workers cannot rub the mortar surface to absorb water. This will cause some workers to rub the surface in advance. The probability of hollowing and cracking during mortar construction increases.
In the hot summer, if it does not rain for a long time, the temperature is high and the humidity of the air will be very low. At this time, the water in the mortar evaporates faster and the water absorption time will be shorter. Construction workers need to quickly perform the rubbing and water absorption process, which will increase the construction intensity of the workers. If the weather is hot, in severe cases, the mortar will solidify before construction and cannot be constructed normally.
Relatively speaking, autumn is a more suitable season for decoration. Because the temperature is moderate and the air humidity does not change much, autumn does not have much impact on mortar construction. In winter, when the temperature is low, the mortar will lose water too quickly and will not be able to be rubbed for a long time.

Mortar measures for different seasons

1. Take waterproof and sun protection measures: Before using mortar, take waterproof, rain and sun protection measures. After construction, pay attention to the places exposed to the sun and with fast air convection. Otherwise, the mortar will lose water to a certain extent. Severe water loss will directly affect the quality and working performance of the mortar. The risk of mortar cracking will be greatly increased.
2. Add appropriate amount of regulator: Regulator is a retarder that can slow down the hydration process of mortar. It can extend the initial setting time of mortar. By properly adding regulators, the adverse effects of high temperature on mortar construction in summer can be solved.
3. Mix ratio control: Strictly control the water-cement ratio and reduce water consumption. Control the amount of admixtures and admixtures. The final setting time of mortar is normally controlled at 8 to 12 hours. And strengthen surface maintenance under the guidance of technical personnel.
4. Maintenance work: After the construction is completed, it is generally recommended to naturally maintain for 24 hours to 72 hours and then dry and maintain (the maintenance time can be adjusted appropriately according to the weather and mortar thickness). If conditions permit, spraying agents can be used for maintenance to prevent quality problems such as early cracks.