Is it useful to add salt to cold fire mud in winter?

In winter, freezing and adding salt to the mud are ineffective.

Cement mortar can be added with water, but not salt. Whether salt water or seawater is added, it will destroy the structure of concrete and cement, and its strength will also be greatly affected. If you want to have antifreeze effect, you can add antifreeze, but the amount should be about 5% of the total weight of cement.

Solutions to freezing mud caused by cold fire in winter;

In winter construction, due to the low temperature, when building walls or mixing cement mortar, there will be a phenomenon of low temperature and less water, which will directly affect its curing effect. If you want to have antifreeze effect, you can add antifreeze, but the amount should be about 5% of the total weight of cement.

When choosing cement, it is suggested to choose the type of ordinary silicate or slag. Note that its shelf life cannot exceed two months, and the quality of sand and gravel selected should meet the standards of winter construction. There shall be no frozen objects such as ice water in the aggregate.

If the sand has been frozen, it must be broken. After screening, it can be used for pouring location to build a greenhouse. A heater can be used in the greenhouse to raise the temperature. As long as it reaches above 0 degrees, it is not easy to be frozen. This method can bring practical results, but it is troublesome to set up and needs to be demolished later.