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1. Details to be known in the early stage of construction

1. Strictly control the amount of water added. The construction environment in winter, the temperature must be greater than 5 ℃, and there are certain anti-freezing measures.

2. The refractory castable must be mixed with a mixer, and manual mixing is strictly prohibited.

3. The anchor must be swelled with bituminous paint.

4. This product is strictly prohibited to be mixed with other casting materials.

Second, the pre-construction preparation and strict inspection contents are as follows:

Prepare castable construction equipment and clean it on site; construction equipment and equipment are intact; anchor material, size, layout and welding quality and preventive measures for water loss of surrounding refractory bricks; before use, pre-test castable for failure; water quality should be Reach the drinking water standard; the above-mentioned acceptance is qualified, and the construction work can be started under the condition of uninterrupted construction.

Three, construction points

1. Molding: made of steel plate or hard wood board, coated with mold agent (oil) on the steel plate, and waterproof paint on the wood board, it should be free of slurry leakage and have good strength.

2. Stirring: Stir with a blender, pour the castable into the blender, and take out the additives together, add dry mix for 2-3 minutes, then add water for 3-5 minutes, the amount of water should not be too much or not.

3. Vibration: The pouring material poured into the mold should be immediately rammed so that it does not leak to a certain position or the same position to avoid segregation and holes in the pouring material. Within 20-30 minutes, the initial aggregate should be discarded.

4. Curing: After the surface of the castable is dry and reaches 70% strength, the mold can be disassembled. The time is 24 hours, and the curing time is 48 hours.

5. Oven: According to different grades and casting material lining thickness and climatic conditions, users must ensure sufficient baking time of 72 hours.