Winter, rainy days and weather castable construction precautions:

1. Winter refers to the construction when the ambient temperature of the castable is +5 ° C ~-5 ° C, and when the temperature is lower than -5 ° C, the construction can only be carried out after reliable cold protection measures have been taken.

2. Winter construction must use winter construction technical measures, to do a good job of the working environment closed, wind, heating and warm work, the temperature of the lining after masonry above +5℃.

3. During the construction of castables in winter, the dry materials should be stored in the heating room, and the construction should be stirred with warm water (about 25 degrees) to prevent the use of high temperature water to avoid the rapid condensation of castables, and the temperature of the mix should be kept above 10 degrees Celsius. It is not easy to add chemical coagulant or antifreeze.

4. During the construction in the furnace in winter, the heat insulation layer should be built first to improve the anti-freezing ability of the refractory layer. After construction, the masonry should be covered with plastic sheets and then tightly covered with hay curtains. For the newly built kiln, the heat preservation time shall not be less than 10 days, and it is strictly prohibited to expose the built masonry to the cold atmosphere.

5. Rainy days should be transferred to indoor work. All materials, transportation, work area and masonry should be protected from rain. Roofing, plugging and plugging of leakages are required for the completion of a building. The upper orifice of the finished furnace shall be closed. The finished ground prefabricated parts should be high and covered, and it is strictly prohibited to soak in water.

6. When the ambient temperature is greater than 30 ° C, it can be regarded as a sky-high construction. During the construction on summer days, the water temperature and material temperature should be controlled below 30, and the materials exposed to the hot sun should be cooled before use.

Seven. The construction of castable should be arranged in the daytime or evening as far as possible. After pouring, it should be covered with straw curtains in time, and it should be frequently sprinkled with water to cool down, and it should not make the water flow to the refractory brick.