Precautions in the use of low cement castable：
1. When configuring low cement castable, it is absolutely not allowed to use raw materials that are underburned or mixed with harmful impurities as bone meal.
2, construction, but also control the amount of water, the amount of water is generally about 6%, under the premise of ensuring liquidity, as little water as possible
3, curing under natural conditions, the environmental temperature is 10℃-25℃, after curing, test three days of normal temperature compressive strength, generally 15MPa-45MPa, and then drying, strictly according to the baking curve.
4. Low cement castable is strictly prohibited from moisture, and the packaging should be made of internal plastic and external woven, or the cement should be separately packaged, and rain and moisture proof measures should be taken for transportation and storage.
5, low cement castable to use forced mixer mixing, mixing material should be used up in a timely manner, pouring good masonry to use plastic sheet cover tightly, in order to slow down the speed of water evaporation, but also to play the role of anti-freezing (winter construction).
If these can be done, can prevent the castable aging changes, ensure the quality of masonry.