After dry mixing for 2-3 minutes, add water to wet mix for 3-5 minutes.
The construction process and precautions of fire-resistant castables: Huolong energy-saving Huolong fire-resistant castables are composed of refractory aggregates, various fillers, binders, additives, and other materials.
4.
It is strictly prohibited to mix and use different grades of pouring materials.
Strictly control the amount of water added, and ensure that the room temperature during winter construction is not lower than 5 ℃, with certain antifreeze measures in place.
3.
Shelf life of 3 months
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2.
Leave expansion joints according to the design.
（2） Precautions for the construction of refractory castables: 1.
（1） The spare parts of the equipment to be poured and the construction machinery to be cleaned on site are intact; The material, type, size, arrangement, and welding (fixation) quality of the anchor, and the expansion compensation treatment of the metal anchor; Waterproof protection measures for surrounding refractory materials (fiber products, etc.) or preventive measures for wet water absorption by bricks; Whether the pre test castable has failed; The quality of water used for pouring materials should meet the drinking water standards; The above has passed the acceptance and ensures uninterrupted construction.
The steel plate should be coated with release agent, and the wooden board should be coated with waterproof paint without leakage and have sufficient strength.
The mixed pouring material must be used up within 30 minutes, otherwise it will be discarded.
The removal time should be ≥ 24 hours, and the curing time should be ensured to be ≥ 24 hours.
05 Drying: According to different grades, pouring material lining thickness, and on-site climate conditions, users must provide sufficient baking time to ensure that water is discharged without cracking.
The cumulative baking time shall not be less than 72 hours.
Anchor nails must be equipped with expansion caps or painted with asphalt paint.
Compulsory mixers must be used for mixing, and manual mixing is strictly prohibited.
5.
The excellent performance of a good product needs to be demonstrated through the correct construction process, and also needs to consider environmental impacts such as storage and application, as well as operational precautions.
Today, Huolong Energy Saving has listed the construction process and some precautions for refractory casting materials for your reference.
04 Curing: After the surface of the pouring material is dry and reaches 70% strength, the formwork can be removed.
03 Vibration and tamping: Pour the poured material into the mold and immediately use a vibrating rod to compact it layer by layer, without missing vibration, and do not vibrate or re vibrate in the same position for a long time to avoid segregation and holes in the poured material.
01 Formwork: Prepare molds using steel plates or hardwood boards and support the templates in advance according to the pouring size.
02 Mixing: Using a forced mixer, pour the castable first, and then add small bags of additives.
The amount of water added should be less than too much, with a water content of 7.0-7.5%.
