Matters needing attention for concrete construction in rainy season

Heavy rain or torrential rain can cause problems for construction.The moisture content of some raw materials of concrete changes greatly. How does the concrete production enterprise control the water consumption of actual concrete production and the water consumption of mix proportion design?

In some areas, the rainy season is usually longer, concrete construction and maintenance should pay attention to what matters?If it rains suddenly in the construction, and there is no time to adopt relevant measures, what quality problems will usually occur in concrete?What are the remedial measures in case of quality problem?

Concrete construction suddenly encountered showers or heavy rain.Therefore, in the concrete construction process, we should pay more attention to the following aspects, and do well protection measures

(1) The template isolation layer should timely master the weather forecast before painting, so as to prevent the isolation layer from being washed away by rain.

(2) In case of heavy rain, concrete should be stopped and the part that has been poured should be covered.The concrete that is cast now should according to structural situation and possibility, consider the indwelling of a few construction joints more.

(3) During the construction of rain period, the determination of water content of concrete coarse and fine aggregate should be strengthened, and the water consumption should be timely adjusted.

(4) Before concreting over a large area, you should know the weather forecast for 2-3 days and try to avoid heavy rain.The concrete pouring site should be prepared with a large number of rainproof materials, in case of sudden rain when pouring cover.

(5) Backfill under formwork support shall be tamped, and the spacer shall be added, and the subsidence shall be checked timely after rain.

(6) When it rains, steel bar welding and butt joint shall not be carried out, and rainproof work shall be done or construction work shall be moved indoors when it is urgently needed;It should prevent rain water from pouring on the newly welded steel beams, so as not to affect the quality of the project