After pouring the concrete beam, the weather will snow and freeze 24 hours later, about minus 3 degrees, which will seriously affect the strength of the concrete and the load-bearing of the beam!

Concrete watering and maintenance during winter construction

For beams and columns, methods such as wrapping them in plastic film immediately after removing the formwork and hanging straw curtains on the outside are generally used; there are also methods such as brushing on the surface. Curing agent, but this method has been proven in practice to reduce the strength of concrete, and the surface rebound value is prone to be low.

For the concrete of the slab, it is generally cured by pouring the concrete, smoothing the surface and immediately covering it with a plastic film and adding a straw curtain on top.

The laying thickness of insulation materials is: Generally, one layer is laid above 0℃; two or three layers are laid below 0℃; thermal insulation should be covered immediately after large-volume concrete pouring and secondary plastering compaction. The thickness and material of the insulation layer should be determined based on calculations.