Before the construction of refractory castables, the construction parts should be cleaned first to remove the rust and impurities on the surface, so as to avoid the phenomenon that the refractory castables are easy to fall off and crack due to too much impurities after pouring.
When the refractory castable is poured and stirred, the water should not be added too much or too little. It must be determined according to the implementation. If too much water is added, the refractory castable aggregate will be separated from the base, which will affect the performance of the refractory castable and will also decrease. The density, strength, alkali resistance and wear resistance castable. If the amount of water added is insufficient, the construction performance will be poor, the refractory material will not flow normally and the dense filling will be achieved, the bubbles will not be discharged, the close packing will not be formed, which will directly affect the performance of the castable.
When using part of the castable, it is necessary to use a forced mixer to stir the mixture. It is strictly forbidden to mix artificially. The anchor nail used must be added with an expansion cap or brush asphalt paint. Therefore, during construction, you should carefully check the instructions on the instructions to strictly operate.
Maintenance of refractory castables. Under normal circumstances, refractory castables take 24 hours to maintain, which can help to enhance the performance of refractory castables, and after the refractory castables are solidified, avoid secondary direct addition of water, otherwise the pouring will be done. It can't be used. Therefore, the maintenance after solidification is also very important.
