The pea stone is good. Discovered according to Qijia.com query.
1. Pisolite can prevent the floor heating coil from being damaged and make the floor heating temperature more uniform. The surface of ceramsite is rougher than gravel and has a lower water absorption capacity.
2. Pisolite can increase thermal conductivity and has a hard texture. The price of ceramsite is high and the cost of subsequent maintenance is also high.
What diameter of pebbles should be used for the installation of underfloor heating?
Approximately 0.9 cubic meters of pebbles. Usually, one square meter of underfloor heating backfill requires 0.015 cubic meters of pisolite, because one square meter of underfloor heating backfill requires cement, sand and pisolite, and the quantity ratio is 1: 2:3. Assuming the thickness of the embankment is 0.03 meters, the total volume is 0.03 cubic meters. The volumee of each portion is 0.005 cubic meters, so we can calculate that the pisolite is 3 times 0.005 equal to 0.015 cubic meters. Then simply multiply it by 60.
Pisolite specialized for underfloor heating backfilling, the required size is around 10mm, with a smooth surface and no edges or corners. Only smooth stones have better thermal conductivity and can better play the role of paving stone production. Based in Linyi, Shandong, pisolite producers for floor heating use natural pisolite, which is sieved twice. Each bag weighs 50 kilograms and the ratio of cement, sand and pisolite is 1:2:3. Say the important things three times, 10mm, 10mm, 10mm.