The backfill material for underfloor heating can be ceramsite or pisolite, both of which have certain advantages and disadvantages.
Ceramsite is a porous clay-based material. It is lightweight, has low water absorption, good air permeability, and is not prone to mold growth. Its use of backfill in the floor heating system can better promote heat dissipation to the ground, conduct conduction and radiation more evenly, and improve the temperature stability and energy efficiency of the floor heating system. .
Pisolite is a natural granular mineral material with strong thermal inertia, which can maintain the heat of the underfloor heating system to a certain extent. Pisolite also has good drainage properties and is often used to improve soil structure and increasesr the air permeability of the soil.
Why use pisolite for underfloor heating backfill?
Approximately 0.9 cubic meters of pisolite. 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 volume of each portion is 0.005 cubic meters, so we can calculate that pisolite is 3 times 0.005 equal to 0.015 cubic meters. Then simply multiply it by 60.
Is it better to lay the button stone first after finishing the underfloor heating?
The material of the button stone has no sharp edges or corners, and the surface is relatively smooth. is generally used when there are buried pipes, such as pfor example underfloor heating or a cable trench.
Complete the construction of the concrete filling layer within 48 hours after the installation of the floor heating pipe and the water pressure test is qualified during the construction of the layer of concrete filling, the water pressure in the heating pipe; must not be less than 0.6 MPa. When maintaining the filling layer, the system water pressure should not be less than 0.4 MPa;
The filling layer is a structural layer used to protect plastic pipes and maintain soil temperature. uniform. Usually it is pisolite concrete, the grain size of the stones should not be more than 10 mm, the volume ratio of cement mortar should not be less than 1:3, and the degree of strength of the concrete should not be less than C15. The thickness of the filling layer must meet the requirements of cdesign and flatness should not exceed 3 mm.Detailed information
Features of underfloor heating
1. Comfortable and healthy. The temperature of the floor heating extends from bottom to top, giving people a comfortable feeling of warm feet and cool head, which conforms to the theory of traditional Chinese medicine. Heat is mainly transferred in the form of radiation, which does not dry the air. The radiation wavelength is far infrared 8-12 microns, which is beneficial to the human body.
2. Energy saving and environmental protection. To achieve the same room temperature effect, it can be set 2-3 degrees lower than traditional heating, effectively saving energy. And it will not pollute indoor air.
3. Uniform and stable heat dissipation. Since underfloor heating transfers heat throughs concrete, heat is distributed evenly, and concrete has an energy storage effect, so the room temperature can remain stable even if the heating is intermittent.
4. Reduce floor noise. Floor slabs in China generally use prefabricated panels or cast-in-place panels. The sound insulation effect is extremely poor. People climbing stairs will affect the ground floor. Using floor heating to increase the insulation layer has a very good sound insulation effect and can reduce noise pollution. The floor heating process is quiet, the indoor environment is quiet. and there is no air conditioning noise. This is beneficial. Help children focus on learning, thereby improving learning efficiency.
Baidu Encyclopedia - Pisolite Concrete
Baidu Encyclopedia - Floor Heating
As long as you followstrictly the build process, everything will be fine. Mix the cement, sand and pisolite evenly in proportion, then spread them evenly on the pipe. Bury the underfloor heating pipe at least well, about 3 to 4 cm. Choose a manufacturer with reliable quality and good reputation for pea stone, because the quantity will not change after one use, so the quality should be good. The quality of floor heating pea stones from Shandong Yihe Pebbles is good and trustworthy. The floor heating pebbles from Linyi Cobblestone production base are also very good and are usually packed in 50kg woven bags. The bulk density of pisolite is approximately 1.7 per cubic meter. Why is pistone used for underfloor heating backfill? Shandong floor heating pisolite manufacturers wholesale and retail, with uniform specifications and pa size standardsreticles. It is the industry leader of floor heating embankment pisolite, Shandong Yihe.