What are the flatness detection methods? What needs to be paid attention to in the acceptance of ind

In many places in the countryside, the method of punching tendons is also called "cramping". However, it is still necessary to use long wood or long aluminum alloy square. In the past, when there was no aluminum alloy, long wooden squares were used, and a long ruler was planed out of woodworking wood to scrape the freshly painted wall.

The length is generally not less than 3 meters, and it can be horizontal, straight, or even back and forth on the wall. Long wood, although the volume is about the same as aluminum alloy, but the wood is much heavier, especially when the wood is scraping the mortar on the wall, the excess mortar on the wall is pasted on the wood, scraping it down, the wood will weigh 20 30 pounds, and the mortar ash pasted on the wood will be shoveled off with a plastering board.

The wood is not only heavy, but also easy to wipe and wear, hair, a house down, to use several such wood. And later there came aluminum alloy doors and windows. Because it is light and not easy to wear, the bricklayers smooth it on the wall.

This kind of many masters who have been working for many years will only use it. Usually apprentices and novices will not use this method. It is difficult to level the walls.

Painting the wall requires strength, experience and technique, and the apprentice at the beginning will have insufficient strength and technique. The larger the area of the wall, the more difficult it is to level the wall.

When the masters plaster the wall, they usually use the light of flashlights and electric lamps to lean the wood or aluminum alloy square against the wall. Look at how big the gap is between the wall and the wood, the tighter and dull the wood and the wall, the flatter the wall. On the contrary, it is necessary to use mortar ash to make up little by little.

The flatness of the wall is more difficult for interior decoration, and the requirements for the process are higher, and if it is not up to standard, there will be a sense of concave and convex, which will affect the appearance very much! There are several ways to inspect wall flatness. Use a two-meter special ruler to test the wall one by one, lean the ruler against the wall, and use a newly bought unopened card to see if it can pass through, and it proves that the flatness of the wall is not up to standard.

If the flatness of the wall reaches the above mentioned a card can not be passed, it proves that the height difference of the wall has been within 2 mm, and reaching this standard can deceive people's vision, and the wall can not be seen from any angle under strong light. When the room is dark, use a flashlight to shine on the wall obliquely, and you can see the flatness of the wall by looking at the light obliquely. Buy a 3-meter-long ruler and lean directly against the wall, if there is no gap between the ruler and the wall, it proves that the wall is relatively flat.

On the contrary, there are gaps to prove that the wall is uneven. If you don't have strict requirements, use a light to shine and look at the wall obliquely. If the requirements are high, find a straight benchmark and put it on the wall.

Then prepare three new pieces of 100 money. Place it in the middle and both ends of the pole at the same time. If you can't draw out three pieces of money, you will be qualified.

1.Pay attention to the verticality and flatness of the wall For the verticality and flatness of the wall, you need to pay great attention, you can use the yin and yang angle ruler to measure whether it is square, according to the relevant domestic requirements, the error of the yin and yang angle can not be greater than three millimeters.

2.Pay attention to the appearance of the wall When inspecting the wall, you should pay attention to check its perception, check whether there will be quality problems such as color difference, cracks, falling off and spots, and if so, it should be repaired.

The fixed-length ruler method uses a flat ruler of a specified length to rest on the surface of the road surface, and directly measures the gap between the ruler and the road surface as a flatness index.

Attention should be paid to the verticality and horizontal flatness of the wall during the acceptance of the wall, the error of verticality should not exceed three millimeters, and the error of horizontal flatness should not exceed two millimeters.

It can be carried out with professional instruments, and the verticality of the wall needs to be checked, which can be detected by some flat rulers, and must pay attention to whether there is cracking when testing.

The acceptance criteria for wall flatness are based on the quality of the wall and the acceptance criteria for judging the flatness of the wall in many places such as the quality of the wall and the base layer of the ash layer.

The plastering surface of the wall should be smooth, no hollowing, no missing brush, no peeling of the surface layer, no obvious cracks, and no stains. The plastering layer of the wall and the base layer must be firmly bonded, the plastering layer should be free of delamination and hollowing, and the external wall shall not have water seepage. For the verticality and flatness of the wall, use a yin-yang angle ruler to detect the squareness of all yin-yang angles, and the deviation of the yin-yang angle should not exceed 3 mm according to national requirements.

Introduction to the acceptance criteria

1. The acceptance standard refers to a comprehensive acceptance of all projects after the completion of the project. It should be pointed out that the completion acceptance is based on the phased acceptance, and the projects that have completed the acceptance before are generally not re-accepted when the completion acceptance is completed.

2. The overall visual effect of the accepted wall is fresh and tidy, and thoroughly check whether there are defects such as color difference, cracking, peeling, and penetration, and repair or rework in time.

3. Use a yin-yang angle ruler to detect the squareness of all yin-yang angles, and the deviation of yin-yang angles should not exceed 3 mm according to national requirements. Secondly, use a 2-meter ruler and feeler gauge to check the flatness and levelness of the wall, and the national code requires that the deviation should not exceed 3 mm.

Wall decoration design is an important item of home decoration, which has a great impact on decoration design. If it is in the case of decoration, the decoration of the wall will not be easy to put in place, and the subsequent series of processes will be affected. Therefore, it is necessary to be careful when decorating.

So, what are the common problems in the wall flatness testing regulations and their testing? I'm going to let everyone know about it next.

The wall flatness test stipulates that the allowable deviation of the wall surface is 5 mm, and the allowable deviation of the mixed boundary layer is 8 mm. In the decoration of our home, generally speaking, the flatness of the wall is only considered basically qualified. The key processes that affect the flatness of the wall are the two processes of large-scale and sanding and polishing.

Nowadays, the special tools used by the renovation workers are very good. For example, the electric sander, this machine also has a vacuum cleaner to reasonably improve the flatness of the wall.

When inspecting the wall, check your perception to see if there are any quality issues such as color casting, cracking, peeling and rust. If it exists, it must be corrected.

In the case of project acceptance, it is necessary to pay attention to the vertical angle and flatness of the wall. Yang and yin can be used to detect its squareness. According to the relevant requirements of China, the error of the positive angle line should not exceed 3mm.

When inspecting the roof walls, look for cracks. If this happens, it will be corrected at a later date. It should be scratched 5 cm along the void, then the wooden floor should be completely removed, and then the cloth structure should be reinforced.

When you check that the wall is not hollow, you can use a telescopic hammer to tap the wall to see if there is a hollow drum. In home decoration, the wall is not balanced is required to be very strong, which will affect the overall beautiful effect of the house, casually in the decoration must master some testing regulations, the above is my summary of the wall flatness testing regulations and their common problems when testing, I hope you can also use it in the decoration.

When inspecting the wall, you should pay attention to check its perception and check whether it will have color difference, cracks, and falling off. Measuring with a spirit level and yielding high accuracy, feeler gauge measurement method Only one set of feeler gauges can be carried out to make a rough measurement of flatness anytime and anywhere.

Wall decoration is an important item of home decoration and has a great influence on decoration. If it is during the renovation process, the decoration of the walls will not be in place, and the subsequent series of processes will be affected. Therefore, care should be taken when renovating.

So,Wall flatness testing requirements

Wall flatness testing requirementsThe allowable deviation of the wall is 5 mm, and the allowable deviation of the mixed wall is 8 mm. In the decoration of our home, generally speaking, the flatness of the wall can only be regarded as basically qualified. The main processes that affect the flatness of the wall are the two processes of large-scale and grinding.

Nowadays, the tools used by renovation workers are good. For example, an electric sander, this machine also has a vacuum cleaner to effectively improve the flatness of the walls.

1.The appearance of the wall.

When inspecting the walls, take care to check your perception to see if there are any quality issues such as color difference, cracking, peeling, and rust. If it exists, it needs to be corrected.

2. The degree of balance and perpendicularity of the wall.

During the acceptance process, it is also necessary to pay attention to the verticality and flatness of the wall. The yin-yang square can be used to detect its squareness. According to the relevant requirements of China, the deviation of the yin and yang angles should not exceed 3 mm.

3. Check the ceiling wall.

When inspecting the roof wall, look for cracks. If this phenomenon occurs, it will be corrected at a later date. It should be scratched 5 cm along the gap, then the floor should be completely removed and reinforced with a cloth.

4. Verify the hollowing phenomenon.

When you check that there are no hollow drums on the wall, you can use a telescopic hammer to tap the wall and see if there are any hollow drums.

In home decoration, whether the wall is balanced is very demanding, which will affect the overall aesthetic effect of the house, feel free to understand some testing requirements in the decoration, the above is a summary for everyoneWall flatness testing requirementsAs well as the precautions for testing, I hope you can use it in the decoration.

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How to check the flatness of the wallAnd what are the acceptance criteria for wall decoration?

How to check the flatness of the wall- Prepare test rules, the ruler can also be used to detect the flatness of the tile. When performing the test, be sure to see if the pointer on the meter can be reset before use.

How to check the flatness of the wall- Open reading rules. The opening method is very simple, just gently press the outer cover with your hand to see the reading rules.

How to check the flatness of the wall- Open the test rule by hand and then loosen the clamping bolt before opening.

How to check the flatness of the wall- Tighten the fixing nut by hand.

How to check the flatness of the wall- Place the test rules against the wall. Pay attention to the regular direction when approaching the wall.

How to check the flatness of the wall- Look at the reading rules in the test rules, you can detect the readings of the wall plane.

Wall Decoration Acceptance Criteria:

Method 1: Check whether the wall is hollow.

Owners can use a small wooden hammer or similar object to gently tap on the wall. If the sound of the wall is incorrect, it means that the wall is empty. Responsibility is usually easy to hear. The industry is mainly to make a mark so that the putty can be repaired and refilled during the renovation process.

Method 2: Inspect the wall for water leakage.

Before delivery, the owner must verify that the wall is not leaking. It is best to check the day after a heavy rain, especially the location of eaves, facades, bathroom and kitchen ceilings. Water spots appear on the wall, which means that the wall waterproofing function is not good, and the decoration company should be contacted in time.

Method 3: Accept the quality and flatness of the latex paint on the wall.

The way to check the flatness of the roof is very simple, so the room is kept in a certain amount of darkness, and then illuminated with relatively high-powered light, the flatness of the walls is so that you can tell by the shadow of the light. If it's not soft, you can brush it once with putty. The flatness of the wall can be checked with a long ruler.

Method 4: Accept whether the putty is waterproof.

The shopkeeper goes to inspect the mineral water bottle before pouring it, sprays it on the wall, and touches it with his hand to see if there is mud in his hand. If not, it means that the waterproofing effect and standards of putty on the wall are met.

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Interior wall flatnessVery important. Next, let's talk about how to do wall acceptance?

Interior wall flatnessVery important. The verticality of the wall? The national standard for the flatness and perpendicularity of the wall requires the use of a 2-meter rule measurement with an error of plus or minus 3 mm.

This big mistake will have a significant impact on the aesthetics of subsequent decorations.

In general, the decoration of the walls is basically the work of latex paint and putty. It's not very important to look at it. However, if the work is not careful, there will be several cracks, peeling, mold and other phenomena after the new house is used. Therefore, the acceptance of the wall is also a key point.

Interior wall flatnessVery important. Hollow walls? Use a special steel needle hammer (10 g) to place some layers of paper on the walls and inspect the empty walls.

Check if there is a hollow drum on the wall, hit the wall with a small wooden hammer or something, the sound made when hitting the hollow drum is not easy, you can easily hear it. Fill the mark with putty.

Is the wall leaking? In order to check the walls for water leaks, it is best to do this on an observation day before the delivery of the house and the day after heavy rain. In particular, check the walls for water spots, especially some tiles, kitchen countertops, godly facades, etc. If there is a water spot, there is a leak.

Interior wall flatnessVery important. Cracks in the wall? In addition to water filtration, there is also the problem of walls, i.e., whether the walls are cracked or not. In general, it is better to inspect the cracks in the walls.

Latex walls, paint quality and wall flatness? When the surrounding light is low, use a high-power bulb (200 watts) to illuminate. If the lights are on, the ceiling of the wall will be flat.

It will be seen immediately through the shadows of the light. If it is not necessary to fill putty, if it is partially painted (patched), it will differ from the original color of the wall.

Is wall putty waterproof? Check if the putty on the wall is waterproof. You can bring a bottle of mineral water, pour it on the wall and touch it with your hands to see if there is mud in your hands. Otherwise, check whether the waterproof cement on the wall is qualified.

Interior wall flatnessVery important. Today, about the vertical flatness of the putty wall wall acceptance, I hope you can pay attention to the wall acceptance.

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