Precautions for the construction of silo slipforms on rainy days

In progressSilo slipformDuring construction, there are sometimes unavoidable rainy days, so what should be paid attention to when slipform construction is carried out on rainy days? Come and have a look with the editor!

In the rainy weather silo slipform construction process, in order to make the slipform construction uninterrupted and ensure the continuity of the concrete panel, the following measures can be taken:

1,When it rains lightly, a smaller concrete slump can be used, which generally does not exceed4 cm. This is because the concrete storage section to the machine exit section is all carried out in the open air, which is affected by water., The water-cement ratio and slump of concrete will change during transportation and warehousing. Then the slump does not exceedAt 4 cm, when the chute slides down, there will be less mortar loss, which can meet the requirements of slipform construction.

2,When it rains moderately, in addition to the treatment of concrete with a smaller slump, the pouring speed must also be reduced. Generally, the pouring and sliding section is about to be within an hour.About 50 cm is fine.

3.When it rains heavily, the concrete warehousing can be stopped, but the interval between stopping concrete warehousing cannot exceedThree hours, that is, before the concrete is finally set, it is necessary to put it in the warehouse once as much as possible when listening to the rain or when it is less than the gap, and also to slide once.

4.Construction in rainy days, if the demoulded concrete is washed by rainwater, it will flow, and there will be pitting on the surface. Therefore, after the surface is smoothed, cover the transparent film to protect the initially demolded concrete.

5.It should also be noted that no matter how heavy the rain is, the silo surface must have a slope during the pouring process, and the concrete surface after entering the silo will also be tilted after vibrating. During the interval between warehouses, the drainage effect will be better and the mortar loss will be less.

Rainy daySilo slipformThat's it for the introduction of construction precautions. If you want to know more, you can consult Anhui Xingcheng Slipform Engineering Co., Ltd.!