Castables use method
1. The equipment to be poured and the site to be cleaned; the construction machine is in good condition; the anchor material, type, size, arrangement and welding (fixed) quality, the metal anchor is used for expansion compensation treatment; and the surrounding refractory brick and other castable wet water Precautionary measures; pre-test castables are ineffective; water quality should meet drinking water standards; the above experience is acceptable and ensures that construction is not interrupted.
1. Molding: It is made of steel plate or hard wood board. The steel plate is coated with release agent. The wooden board should be brushed with waterproof paint and should not leak slurry. It should have sufficient strength.
2. Stirring: use a forced mixer, first pour the castable into the machine, and take out the additive pouch and pour it into it. Mix it for 2-3 minutes, add water for 3-5 minutes, add less water, and add less water. The amount of water is 7.0-7.5%.
3. Vibrating: The pouring material poured into the mold should be layered and tapped immediately with the vibrating rod. It must not be leaked and vibrated and re-vibrated at the same position to avoid segregation and holes in the castable. The stirred castable should be discarded within 20-30 minutes from the addition of water to the end of use. The expansion joint is designed to be left behind.
4. Maintenance: After the surface of the castable is dry, it can be demolded with 70% strength. The mold removal time is ≥24 hours, and the curing time is ensured ≥24 hours.
5. Drying: According to the different grades and the thickness of the castable lining and the climatic conditions of the site, the user provides sufficient baking time to ensure that the water is not bursting. Requires cumulative baking time ≥ 72 hours
Second, note:
1. Strictly control the amount of water added. The construction temperature in winter is greater than 5 °C, and there are certain anti-freezing measures.
2, using a forced mixer mixing, artificial mixing is strictly prohibited.
3, anchor nails plus expansion cap or brush asphalt paint.
4. This product is strictly prohibited to be mixed with other grades of castables.
5, the preservation period is March
