Can commercial housing be grooved on the ground? Floor slab floor grooving effect

Commercial houses generally complete the 20 mm floor plastering surface layer before delivery. Concrete floor slabs are generally designed with a 15-20 mm thick steel cover.

Therefore, under certain conditions, it is allowed to open a 35 mm slot. The conditions are:

1. Be careful not to cut off the steel bars in the slab;

2. After laying the pipeline, rinse the tank with clean water, and then use 1:2 cement mortar.

Carefully fill the dense to protect the rebar so as not to accelerate corrosion;

3. It is best to groove along the direction of the parallel main reinforcement, so that the damage to the mechanical performance of the floor slab is minimal;

4. After slotting, draw the as-built drawing of the accurate slotting position.

It is used as the basis for subsequent floor laying or pipeline maintenance. In order to avoid damaging the pipeline during nail shooting or maintenance, it will be a little troublesome.

In the actual project, the thickness of the ground plastering is more than 20 mm as designed, and I have seen some even get 50 mm in some parts (which is not good for loading). At this time, you can open the groove deeper, but be careful not to open it to the end at one time, so as not to touch the main reinforcement.

Generally, the outer diameter of the water supply pipe is 20-30 mm, and the depth of the 35 mm groove can meet the requirements. Although there is some impact on the life of the floor slab, it is relatively small. As long as the construction is done carefully, there is no need to worry too much.

Yes, but you must communicate with the property company in advance, and you must grasp the depth. You know.

The protective layer of the steel bar of the floor slab is generally 2-cm, and it is possible to chisel the steel bar and crack the floor slab. The first floor is no problem, and above the second floor, I suggest that you do not slot, and lay it directly on the concrete floor slab to make a high leveling layer. In addition, it is best to make a layer of waterproofing where the pipe passes, and you can walk along the foot of the wall for fear of affecting the appearance.

It is recommended to be careful in the actual decoration construction, as far as possible to avoid laying pipelines in the span of the slab, and do not touch the main reinforcement on the upper part of the slab. Although it is not a big problem to touch some of the distribution ribs, it is better not to touch or touch less.

No, there is a 3-5 cm cement concrete backfill layer on the ground and the floor slab, as long as you don't dig the floor slab (that is, reinforced concrete) within this range, it will be fine. If it's north, be careful with the geothermal pipes. Planing to about 3 cm enough to get down the pipe, there is no heating in the south, there is no geothermal heat, find a professional plumber, you must prevent the pipe from leaking.

According to the materials used, the floor slab can be divided into several forms, such as wood floor slab, brick arch floor slab, reinforced concrete floor slab and steel liner load-bearing floor slab. It is a kind of separation load-bearing member, which transmits the vertical load of people and furniture and the self-weight of the floor slab to the foundation through walls, beams or columns.

Generally speaking, slotting will definitely adversely affect the floor slab, which is a reduction in bearing capacity and a risk of collapse. The key to the risk depends on the depth, width and length of the slotting and the location of the slot. The hazards of floor slab slotting are as follows:

1. The surface of the reinforced concrete floor slab has a thin shell structure made of a layer of cement, with a thickness of about 2cm. If the slotting only destroys the structure and does not destroy the steel bar, it does not affect the main structure, as long as a layer of cement is carefully smeared;

2. If the slotting depth of reinforced concrete does not exceed one-quarter of the thickness of the slab, and the width and length are small, it should not cause collapse, but it is very likely to cause cracking, after all, the cross-sectional size of the floor slab in the slotted area has changed greatly.

3. If the reinforced concrete floor slab is slotted deeper, touching the main beam, secondary beam and other steel structures will seriously affect the main structure, and the risk of collapse will be greatly increased.

4. The reinforced concrete floor slab is slotted to arrange the water pipe, there is a risk of water leakage, when the water pipe is corroded through, or because the joint is not tightened when connected, it will cause water seepage, and the water seepage will slowly corrode the steel structure, resulting in a decrease in the strength of the steel bar and a decrease in the bearing capacity of the floor slab.

5. Slotting is not allowed for wooden floor slabs, and the risk of collapse is very high.

6. For other floor slabs, as long as the main beam is not injured, the risk of collapse of the overall slab layer is small, but due to local damage, the risk of local collapse increases.

If you just open a water pipe slot, it will have no impact on the safety of the building.

Hydropower slotting finally caused a big disaster, smashed the floor panel, directly hit the ceiling downstairs, although the final decoration company to repair, but the owner finally compensated for the loss of the downstairs, but in the future? Do you dare to live in this house? The structure of the floor slab is now damaged, and it may collapse one day.

In foreign countries, this kind of construction that damages the structure of the building is punishable by imprisonment. So will the ground slotted floor collapse, and is the ground slotted good? Let's take a look at it today.

Will the floor slab collapse if the ground is slotted:

1. Skilled personnel who have done construction know that whether it is a new construction or a secondary decoration, the ground roots do not need to be horizontal and vertical, and there has never been such a request for planning specifications and national specifications. Those who say that hydropower should go to the ground horizontally and vertically are laymen, not to mention the cost of labor, which damages the construction structure and causes endless troubles. But there are still so many people applauding this in the headlines, and it is really difficult to explain these explanations to the layman.

2. The principle of relatively simple is that the pipe arc is large to thread, and the line will be changed in the future. Horizontal and vertical slotting regularity, this is an unscrupulous decoration company in order to deceive the owner of the trick, is the local brick floor on the paving, you can see nothing.

3. The principle of wiring and laying pipes of real professional indoor planners is to be able to walk on the wall, and must not be slotted, and people build embedded in the time of doing steel bars to wear into, what is going on with the slotting of the wall now, and there is a principle that the top does not go to the ground, and the top can not think about the wall.

4. The finished cement of the floor of the high-rise building is a high-stress structure, and once the groove will affect the overall strength. It will have a safety impact on the entire building. This is a violation of the construction law.

5. Those who have been engaged in the construction of hydropower know that in the construction of the building, the hydropower pipelines are separated from the structure of the building, once it touches the wall construction or piercing, the construction method is not indicated on the drawings, and the construction must be approved by the civil engineering and the planning party before the construction, and the first time after the construction should also be repaired by the civil engineering. 

If the boss has a groove on the floor, it will have a little impact on the whole building. If you don't do it, it will collapse.

Will ground grooving destroy the floor structure? What are the benefits of this construction? See what the decorating guys have to say.

It depends on what thread you bury! What a floor!

By the rules! Buried wires should be laid with metal pipes and then threaded! for later repairs and line changes! The most taboo bare wire is buried! There is nothing to be done about the failure in the future!

If you lay pipes, don't make a thick floor! You can only groov! If you lay a stone hard floor, you can bury it along the way!

I think it's better to walk the wires on the wall and the pipes for all kinds of water underground. It mostly depends on personal preference. If the underground wiring is best with steel pipes, the ground is grooved.

Generally, it is necessary to groove the ground and route the wires, and then lay the floor.

No, you don't. Generally, it is grooved in the ground, or made keel, which will not hurt the floor you bought.

Of course, it needs to be beautiful, so that the wires need to be buried.

It should be on the wall and ceiling. How can anyone walk on the floor?

I should put the thread before laying the floor.

1.The ground is covered with composite flooring (the floor mat treasure is not paved below or the floor mat treasure below 2 cm) The ground is slotted, and the groove after the pipe is lined up should be flattened with cement powder, which is convenient for the later floor laying.

2.The floor is covered with laminate flooring (paved with more than 3 cm of floor mats), and the floor can be slotted without slotting.

3.The floor is covered with solid wood floors or multi-layer boards (the ground is equipped with wooden keels), and the floor can be ungrooved.

4.The floor tiles can be laid without slots.

5.The wall surface of the latex paint wall must be slotted.

6.The wall is tiled, and the wall must be slotted.

7.There is a ceiling line pipe on the top surface, and there is no need to slot it in the roof directly.

8.There is no ceiling on the top surface, and the top surface can not be slotted, and the top surface cannot be PVC pipe. You can wrap the wire with adhesive tape or go directly to the top with a sheath wire.

Now the kitchen and bathroom waterproofing are concrete poured at one time, and then coated with a layer of waterproof paint like something, if slotted it is easy to leak, and now the new commercial housing floor is 12-15cm thick, please think twice, if it is broken to repair it will be very troublesome.

Why grooving? It's not a problem of waterproofing, it's about affecting the structure of the floor slab, how thick is the floor slab? 100mm?There are steel bars on the surface, you slot, the steel bar on the surface is broken, the floor slab is thin, and it is going to break, who have you ever seen slotted upstairs?

At present, the general process is that the hydraulic engineer should wet the inner groove with water after slotting, and then bury the pipe after the draft is full. After the embedded pipe is pre-embedded, the groove should be sealed with mortar, and the waterproof layer should be made twice after drying.

If you slot, you'll have to redo the waterproofing.

Real estate slotting requires five certificates and two books.

1. Planning Permit for Building Land

Before the construction unit applies to the land management department for the requisition and allocation of land, it shall be confirmed by the urban planning administrative department that the location and scope of the project conform to the legal certificate of urban planning.

2. "Construction Project Planning Permit".

Legal documents related to the construction project meeting the needs of urban planning.

3. State-owned Land Use Certificate

The legal certificate of the state-owned land use right promulgated by the people at all levels of the city upon the application of the land user. The certificate mainly states the name of the land user, the location of the land, the use, the area of land use, the service life, and the scope of the "four to".

Fourth, the "Construction Project Commencement Certificate".

The legal certificate of the construction unit for the construction of the project is also one of the main bases for the registration of housing ownership, and the building without the construction certificate is an illegal building and is not protected by law.

5. "Commodity Housing Sales (Pre-sale) License".

Municipal and county people's ** real estate management departments allow real estate development enterprises to sell commercial housing approval documents.

6. "Two Books".

Commodity Housing Quality Assurance Certificate, "Commodity Housing Instruction Manual".

Architectural qualifications are also required.

This is a slot directly cut out of the woodworking knife, which is very efficient. There are many such small factories in Jiangsu and Zhejiang.