Concrete mixing station encountered unexpected solution

1, cement, fly ash, slag transported to the wrong storage tank, should be the most unfortunate situation. Such as low-grade cement hit high-grade cans, and perhaps half of the tank in the high-grade cement, can only be used with low-grade cement. Experiments confirmed that the powder in the tank movement is unstable, can not control the next sub-order.
2, excessive admixture. Should be promptly with the admixture factory contact, admixture plant according to product function, help out with a processing plan.
3, mistakenly use fly ash or slag as cement. Can not be used. If conditional, recyclable use.
4, concrete to the construction site after the consistency is small, can not pump. Low-grade can be mixed with the proportion of cement slurry added to the concrete side. High-grade can be added in proportion to the water, drop the use of labels.
The above is that the concrete mixing plant may be a problem, I hope to help you.