When backfilling for underfloor heating, should wet cement sand or dry cement sand be used?

underfloor heating backfill, cement mortar is required.

Other supporting materials are acceptable. The best material for underfloor heating backfill is bean stone, also called ceramsite.

Beans. The bean stone is particularly light, which does not increase the weight of the building, and has good thermal insulation performance. The use of bean stone backfill floor heating, there are two kinds of Shi Of course, I am on the scene when the house is decorated, I think it is better to fill the wet sand and fill it more solidly, so that the floor tiles are pasted.

When it is not easy to move and hollow with wet, it is better to use dry, and dry will cause gray water to be mixed in place, which will cause dry, empty, cracked, sand and other problems, and the solidification strength will also be greatly affected. If there is more water at the top, the lower strength will cause sand and slurry, and if there is less water at the ground, it will burn the material.

<> floor heating backfill smoothing and solidification, you can pave tiles and lay wooden floors, it is recommended to do floor heating with plastic pipe or Jinde pipe, both kinds of pipes are branded, quality, do not worry about the quality of the follow-up floor heating. That's because in the home floor heating, cement, sand, and bean stones are not easy to transport to the owner's home after being mixed with water, and the floor of the owner's home is nowhere to stir because it is covered with floor heating pipes, and directly stirring the sand and ash on the ground will cause local water infiltration.

Of course, it is good to mix the cement and then wipe it, because the effect of sand and cement is better after mixing with water, that is, because the cement and sand can be fully combined well when stirring, so as to avoid the phenomenon of drying up, it is recommended to stir first and then wipe well. There must be secondary drainage in the sedimentation tank, and if there is none, call the plumber to do one, if it is a regular decoration company.

will do it! After all, there are gaps in floor tiles! After a long time, there is a little water seepage into the sinking tank, and the secondary drainage is to drain this water.

Cement and sand reconciled, and then plastered, by the way, leveling, the floor heating will be warped, which will remember to press the warped place. Smooth it in and exit it after wiping it. Do not step on it for 12 hours.

Wait for the fixed to step on it, remember to water it twice. Let the cement drink enough water, it will be harder and stronger. Remember, it is better to be able to level the surface when operating, and the floor is directly laid.

It is best to use dry cement sand, because this can ensure that the heat can penetrate well into the ground after the installation of underfloor heating.

It should be dry cement sand, because this method will be stronger and less prone to problems.

1.Wet cement sand is good. The reason is that after the installation of floor heating is completed, it is necessary to backfill the wet ash of cement sand with fine stones, because after the cement is solidified, the floor heating can be protected.

Backfill dry plaster is easy to cause unnecessary damage to floor heating pipes when plastering or laying floors or tiles. Therefore, it is better to fill in wet ash. Dry or wet materials can be used.

The biggest advantage of dry backfilling is that it does not increase the weight of the floor itself, occupies less floor height, and has low heat dissipation loss, so it is more suitable for families with low floor height. When installing underfloor heating, you can ask the HVAC company to specify this process.

2.Wet backfill is mainly made of cement or concrete, because cement has a certain heat storage capacity. Stir the ingredients evenly according to the stirring order and proportion, and the time shall not be less than minutes.

After the mixing is completed, the floor heating pipe should be tested for pressure, and there should be no height difference in the backfill layer. After leveling, the paving begins, starting from the corner of the room, and the backfill layer is upside down. Check the pressure gauge at any time while laying.

Maintain the pressure, once the abnormality is found, deal with it in time, and avoid the phenomenon that the floor heating pipe is not hot due to insufficient pressure in the future.

3.In terms of thermal uniformity, "wet" traditional underfloor heating is to heat the concrete filling layer through hot water pipes or heating cables, and then the concrete filling layer evenly and slowly dissipates heat into the room, which is equivalent to the "ground" heat dissipation of the whole home. In the case of thin underfloor heating, because there is no backfill, the pipes are basically directly tiled.

and floor covering, which corresponds to the "line" of pipes for heat dissipation. In particular, the use of embedded "dry" floor heating modules is strongly discouraged – extruded panels.

The role is to keep warm. You have the water pipes embedded in the insulation panels, and at least three-quarters of your water pipes are in a state of ineffective heat transfer.

4.In addition, in order to satisfy the gimmick of not taking up the height of the floor.

Built-in insulation boards are generally thinner, and the grooves embedded in the pipes are thinner, so the floor heating dissipates more heat downward, which is why some homes have such floor heating. In the same way, the wet laying method is the first 8-10 hours of full power heating, so as long as the temperature is reached, there is no need to work hard, and only need to work hard for these 8 hours in a winter. Therefore, the wet laying method at home for a long time is more energy-efficient, and the dry laying method is suitable for vacations or short periods of time that are not often used at home.

It is better to use dry backfill, because it does backfill well and can prevent the surface layer from being pulled out.

Dry, I'm afraid that the cement is easy to agglomerate, resulting in poor backfill of floor heating and easy leakage.

No, it is not so fragile, but it is best not to have hard objects in the cement and sand in the backfill process, if you talk about the floor heating backfill, this dry mixing method is relatively better, and it is best to lay a layer of heat dissipation film and protective net on the upper layer of the floor heating before backfilling.

In addition, the current floor heating technology, which is still using the old technology of backfilling, has relatively high energy consumption, and you can learn about other more energy-saving technologies or products.

The so-called wet geothermal, there is cement backfill, also known as the traditional geothermal mode, geothermal began to use, adopted for this mode, the backfill layer mainly plays the function of heat storage and heat dissipation, and the geothermal pipe radiates heat dissipation through the heating backfill layer. Dry underfloor heating refers to the thinning heating that is set up to avoid landfilling without concrete landfill, and the floor is covered like that, also known as thinner underfloor heating. Generally speaking, dry underfloor heating is mostly used to clean rooms with low space.

The infrared thermometer continuously measures the ground temperature, and the "wet" traditional geothermal heat fluctuates within 5, and the thicker the concrete filler, the smaller the temperature difference, and the more uniform the heat dissipation. The floor temperature of a "dry" thin underfloor heater fluctuates greatly, and is basically around 10. So from a comfort point of view, the "wet" traditional underfloor heating is much better than the "dry" thin underfloor heating.

In terms of heat storage capacity, the cement layer of "wet" geothermal has a good heat storage function, for example, when both are started at the same time and set at 22, and then stop the heat source at the same time, the wet geothermal temperature in the enclosed space is only reduced by 3 4 within 24 hours. Dry underfloor heating loses temperature very quickly due to the lack of thermal storage.

In terms of the ability to withstand pressure, the wet traditional geothermal cement backfill layer is a whole, and the pressure such as furniture directly acts on the cement backfill layer, and the cement layer can evenly disperse the force throughout the backfill layer; Dry thin floor heating cement backfill layer is insufficient, the surface layer is not a whole, furniture movement is a direct stress, long-term effect, on the local insulation layer, after a long time, the insulation layer is lost elasticity, and the floor is locally deformed.

In terms of heat dissipation capacity, the wet traditional floor heating concrete filler evenly wraps the pipeline, and the heat dissipation ability of the concrete is relatively strong, exceeding three-quarters of the surface of the pipe for heat exchange. Dry thin floor heating only exchanges heat in the upper part of the pipe, which accounts for less than a quarter of the overall pipe. In contrast, conventional underfloor heaters are more thermally efficient.

It is better to use wet cement, this thing is hard after solidification, which can better protect the floor heating and have a very good use feeling.

It is good to be wet, so that the floor heating pipe can be well protected, and the floor heating pipe will not be damaged, and the cement and floor heating pipe can be well matched.

Summary. Is the floor heating backfill only cement, sand lined?

Precautions for the construction of concrete filling layer: 1. After the installation of the floor heating pipe is completed and the hydraulic test is qualified, the construction of the concrete filling layer will be completed within 48 hours. 2. The construction of the concrete filling layer should be undertaken by the qualified civil construction party, and our unit should cooperate closely.

3. In the construction of the concrete filling layer, the water pressure in the heating pipe should not be lower, and the water pressure of the system should not be lower than in the curing process of the filling layer. 4. The filling layer is a structural layer used to protect the plastic pipe and make the ground temperature uniform. Generally, it is bean stone concrete, the particle size of the stone should not be greater than 10mm, and the volume ratio of cement mortar should not be less than 1:

3. The concrete strength grade is not less than C15. The thickness of the filling layer should meet the design requirements, and the flatness should not be greater than 3mm.

Just don't add any stones.

Dear, yes.

Advantages of floor heating: 1. Comfort, sanitation and health care: ground radiant heating is the most comfortable heating method, the indoor surface temperature is uniform, and the room temperature gradually decreases from bottom to top, giving people a good feeling of foot temperature and cold head; It is not easy to cause polluted air convection, and the indoor air is clean; Improves blood circulation and boosts metabolism.

2. Save space and beautify the living room: the radiator and its branch pipe are canceled indoors, increasing the usable area, facilitating decoration and home layout, and reducing sanitary dead ends. 3. High efficiency and energy saving

The radiant heating method has higher thermal efficiency than the convection heating method, and the heat is concentrated in the height of the human body. Small heat loss during transmission; Low-temperature radiant ground heating can be controlled by layering, household and room, and users can regulate and control according to the situation to effectively save energy. 4. Good thermal stability: the ground layer and concrete layer of ground heating have large heat storage and good thermal stability, and the indoor temperature changes slowly under the condition of intermittent heating.

5. Low operating costs: about 20% energy saving compared with other heating equipment, which can make full use of low-temperature hot water resources or use electricity price policies to reduce operating costs. 6. Long service life

In low-temperature floor heating, plastic pipes or heating cables are buried in the ground, with good stability, no corrosion, no human damage, and the service life is synchronized with the building. Save maintenance and replacement costs compared to convection heating.

Only 1:3 cement mortar was used.

Dear, is it okay?

Pro, you can use a one-to-three cement mortar.

Is the floor heating backfill only cement, sand lined?

Dear, hello, I am happy to answer for you, only cement is used for floor heating backfill, sand is feasible, floor heating backfill needs to use concrete, and some will use sand, stone and cement These materials. The cement use mark shall not be lower, and the sand is recommended to choose medium sand or coarse sand, and the surface of the stone particles should be smooth, and the size and diameter should be controlled at about 5 to 15 mm. The height should be determined according to the structure of the room, and should be controlled between 2 and 4 cm, and the ratio should be carried out in a ratio of 1 to 1.

Summary. Hello, dear; The sand used for floor heating backfill is not allowed; Kiss, don't conduct heat; It is better to backfill with sand + cement concrete. Concrete materials are environmentally friendly and healthy, which can not only protect the floor heating pipes, but also store heat and save energy.

Although the floor heating backfill can prolong the service life of the floor heating to a certain extent, it needs to be constructed correctly, among which the traditional materials of the floor heating backfill are generally the concrete used for floor heating backfill, that is to say, the materials of cement, sand and sand bean stone particles need to be used.

Hello, dear; The sand used for floor heating backfill is not allowed; Kiss, don't conduct heat; It is better to backfill with sand + cement concrete. Concrete materials are environmentally friendly and healthy, which can not only protect the floor heating pipes, but also store heat and save energy. Although the floor heating backfill can prolong the service life of the ground side material heating to a certain extent, but the construction needs to be carried out correctly, wherein the traditional macro tremor material of the floor heating backfill, it is generally the concrete used for floor heating backfill, that is to say, the materials that need to be used to cover the use of cement, sand and sand bean stone particles.

If the grey water is not mixed in place, it will cause problems such as dryness, emptiness, cracking, and sand, and the solidification strength will also be greatly affected. If there is more water at the top, the lower strength will cause sand and slurry, and if there is less water at the ground, it will burn the material. The ground is not very firm if the sand used by the Ministry is not very firm, and it is easy to appear empty, and after a long time, it is easy to break if it is hammered with heavy objects.

Floor cleaning and heating backfill can prolong the service life of floor heating to a certain extent.

Yes. Underfloor heating backfill is generally concrete or mortar (cement, sand and water mixture).

It is best to add waterproof materials to prevent water seepage from the floor heating pipes. Just do it right away. Luoyang Jiadeli ground anti-skid and seepage-proof.

No, according to the JGJ142 floor heating standard, melon seed slices or bean stones must also be used.

When backfilling for underfloor heating, should wet cement sand or dry cement sand be used?

Hello dear, glad to answer for you, <>

When backfilling for underfloor heating, should wet cement sand or dry cement sand be used? A: Wet cement sand is good. Wet ash is good, the so-called dry floor heating is no cement backfill, the floor can be directly laid on it, digging cherry because it has no backfill layer so thin, also called thin floor heating lack of early.

In general, dry floor heating is mostly used in rooms with low net space. Whether it is the first or second generation, or even the cement-filled "wet" or the insulation module "dry". The biggest difference between the two is:

The cement filling "wet" heating is slow, and once it is turned on, the heat source (boiler or air source heat pump host) is not turned off; The "dry" module heats up quickly, but the heat source is turned off and cools down quickly. Personally, I think that the heat source should be turned off at night in the office, so it is more appropriate to choose the "dry" insulation module, and it is recommended that the traditional cement filling "wet" is better for other home uses.