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Local grouting treatment, the part of our perforation should be chiseled out of a hole, and the size of the hole meets the later installation of expansion bolts. Then we pour concrete into the hole. This allows the concrete to completely fill the inside of the hollow brick, or to replace some loose material with concrete.
In this way, when the concrete has set, we can make holes in the concrete. At this point, it is very sturdy.
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You can first reinforce the wall, after the reinforcement layer is dry, and then drill the wall, if you do not reinforce the hole, then it may cause the loosening of the wall, and cause harm in the subsequent decoration process.
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If it is to hang something light, use an iron plane to expand the screws. If it's anything else, you'll need to fill the wall, put it in the cork, and then screw it.
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For load-bearing items, use expansion screws.
And use bamboo chopsticks to fix around the expansion screw. Chisel off part of the wall, add building materials such as cement, sand and plaster, and perforate and bear weight after solidification. The inability to hit expansion screws on hollow walls is not necessarily a problem with expansion screws. hollow bricks.
Maybe the material is too soft, after punching, when installing the expansion screw, tighten the nut hard, and the expansion screw expands open, but the brick is broken. At this time it is not tightly fixed on this wall.
<> can be corked, disposable chopsticks can be split, and the expansion tube can be wrapped with tape to increase its practical diameter with the wall hole. If there is a problem with the flatness, the new wall will be much stronger and more durable, and the novice master can do it. Moreover, if the wall area is too large, it is obviously faster to rebuild than to shave half of the wall, and the cost is also more economical.
After the hole is drilled, fill in some stone glue, and then stuff it into the expansion screw for fixing, and the third is not to hit the bottom of the screw: hang small pieces with steel nails, you can go to the hardware store to buy some expansion screws, see what you want to fix, if it is heavy, you can buy some large expansion screws, remember that the drill bit is two sizes smaller than the expansion screw. Then you should choose the appropriate drill size for drilling according to the actual size of the expansion screw.
In general, you should choose a drill bit diameter similar to the diameter of the expansion tube and then use an electric drill.
Drill holes at marked punch locations.
The expansion plug wall hole is loose, the wall hole is large, at this time, you can use cement and water to mix wet, knead into a ball, and stuff it into the wall hole to fill. The plastic expansion is first swung in with wood moth silk.
In the expansion tube, grab the screw wire and stuff the expansion tube in, if it is an iron expansion, grab the screw rod part, and the iron expansion with the socket eyelet is too loose to do, one is to disassemble the copper insert to adjust to the appropriate position, if it is simple, do not need to disassemble it directly with a knife to deal with it. If the wall nails are loose, under normal circumstances, we can use a wall nail with a larger diameter to fix it, clean up the original wall nails, so that it is stronger, and you can also smash the wall nails into it a little more.
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1.Local grouting treatment. The so-called local grouting refers to the hole to be chiseled out of the part we punched, and the size of the hole meets the later installation of expansion bolts.
2.Partial changer blocks. The so-called partial replacement of blocks here means that we need to hit the expansion bolts and chisel off the hollow bricks inside.
Then the chiseled hollow brick position is repaired with solid bricks.
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If the wall is loose, you can build some red bricks, and then drill the holes, and the red bricks can withstand a certain force.
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Partial grouting treatment is possible. Partial replacement. Air cut into cubes. Punch through holes. The so-called cupping piercing means that we need to punch the hole through the wall at the punching position.
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At this time, you can choose to change the position of the hole, you can choose a smaller drill bit when punching, if the wall is too soft, you can also choose to change a wall, fill a little stone glue appropriately, and then choose to use the expansion screw to punch the hole.
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If you want to solve this problem, you need to use our cement directly, and then lay it on the wall, and you also need to use some coagulant, you can change a wall to the jungle, so it will be more suitable.
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At this time, you should scrape an extra layer of putty, you can choose an expansion screw, you can use a hook, you can choose a sticky hook, or you can choose a drill bit with a relatively large power.
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The wall can be fixed, the wall can also be reinforced, and holes can be drilled in other walls, so that the problem can be solved.
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During or after renovation, many families want to make holes in the wall. For example, when we install a storage electric water heater in our home, we need to punch holes in the wall and install expansion bolts. In the same way, if we install curtain rods or other pendants at home, we must punch holes.
But you will find that the material inside the wall is out of the space, and the punching does not work. For example, the most common hollow bricks. So what to do at this time?
Take the following question as an example to analyze this problem for you. What to do if the wall is too loose? How to install a storage type electric water heater?
We have to deal with it according to the role that the punch needs to play. Because we punch holes to install some items, we have to take different approaches to different items.
The need to install heavy objects here has been introduced to you above, for example, our home needs to install a storage electric water heater. Because the storage type electric water heater tank is relatively large, it is heavy. If it is not installed securely, there is a chance that the storage electric heater will fall off the wall.
This situation is dangerous. Like any other wall-mounted weight, it needs to be carried. For this situation, I personally recommend the following way of dealing with it.
Local grouting treatment. The so-called local grouting is to chisel a hole in the punching part, and the size of the hole should meet the requirements of installing expansion bolts in the future. Then we poured the concrete into the hole.
In this way, the concrete can be completely filled with hollow bricks, or some loose materials can be replaced with concrete. In this way, after the concrete has set, we can punch holes in the concrete. At this point it was already powerful.
Some converter modules. The so-called local block change here is that we chisel out the hollow bricks at the position where the expansion bolts are needed. Then fill the cut hollow bricks with solid bricks.
For example, we can patch with red bricks or small gray bricks. In this way, the fake parts of the original hollow bricks are replaced with solid bricks. The surface is then coated with cement mortar.
So that we can punch holes in this position normally. Of course, there are no problems with installing expansion bolts. Loosening of the tiles themselves.
For example, if we touch this tile with our hands, we will find that this tile is separated from the wall, and the back of the tile is very clean. This situation is called loosening of the tile itself.
The tile and adhesive layer are loose. For example, we use cement mortar when we put tiles, and cement mortar when the tiles are loose. What we see is that there is a lot of cement mortar on the back of the tile, but the cement mortar is separate from the wall.
The plastering layer of the wall is loose. This is more serious after the tiles are loosened. What we see is that when the tiles are loosened, the plastering layer separates from the wall when the tiles are removed.
We can clearly see the bottom of the original wall. For example, see concrete or brick walls.
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It is very common for the wall to be too loose to drill holes, we generally find an expansion screw to put in it to increase stability, and you can also put some wooden strips inside to increase stability.
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It can be treated by local grouting method, first chiseling out a hole in the part to be drilled, and then pouring concrete into it, and then it can be fixed by punching a hole in the part after it solidifies.
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Replace the punch position.
Knock the wall straight down and rebuild it to half the thickness.
Use rubber stoppers or wooden stoppers to increase the friction area and reduce the hole area.
Use expansion screws.
For load-bearing items, use expansion screws.
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