Can indoor weather of 1 degree be backfilled with floor heating?

Yes, it should be fine above zero. Besides temperature, we should pay attention to other aspects.

A, concrete material requirements

C20 pisolite concrete should be used as the filling layer of floor heating, and ordinary portland cement with a cement size of not less than 32.5 should be used as the cement, because of its high early strength and small shrinkage during condensation and hardening, which is conducive to controlling and preventing concrete shrinkage and cracking. Sand should be medium sand or coarse sand, and the silt content is not more than 5%. Its quality shall conform to the current industry standard "Quality Standard and Inspection Method of Sand for Ordinary Concrete"; The particle size of pisolite should be 5- 15 mm, the thickness of filling layer of heating pipe should not be less than 30 mm, and when the ground load is greater than 20KN/m2, reinforcement measures should be taken.

Second, the floor heating backfill requirements

When backfilling with floor heating, the area poured each time should not be too large to avoid temperature cracks and shrinkage cracks in concrete, which is also beneficial to the elevation control of concrete; The vibration of concrete needs manual vibration; At the same time of concrete pouring, Plaster workers shall scrape the surface according to the elevation (that is, the top of the elevation reinforcement), and then flatten it with a wooden trowel; During concrete construction, it is forbidden to touch the pipeline with a shovel. In order to prevent the trolley from crushing the pipe, a pedal must be set when pouring (bricks are placed on the board where there is no coil) to ensure that there are no nails on the board to protect the pipe.