What are the good ways to deal with the perforated brick insulation nails?

First of all, there are a lot of perforated bricks in life. Everyone should have heard of perforated bricks, they are everywhere on the market, and the efficiency and practical significance of perforated bricks are also very good. What is the way to deal with the instability?

I'll talk to you about it here.

1. Perforated bricks.

First of all, we must know that perforated bricks are actually divided into two categories, one is load-bearing bricks, that is, porous small holes, and the other is non-load-bearing thermal insulation filling commonly used bricks, which is a large hole B class with a small porosity greater than or equal to about 25%, which is a perforated brick used for load-bearing bricks, and the porosity of the second type is not less than that of hollow bricks for non-load-bearing bricks. In fact, perforated bricks are divided into p-type bricks and m-shaped bricks, the size of these two bricks is mainly distinguished by the shape, these perforated bricks are mainly concrete perforated bricks and sintered perforated bricks two types are mixed together. <>

2. Insulation nails.

Insulation nails are different, insulation nails are a special project to fix the insulation board on the wall, plastic expansion nails, insulation nails are special second firmware for exterior wall temperature protection is widely used in building decoration, the wall insulation house is composed of galvanized screws, nylon expansion pipes and fixed discs, according to the thickness of the insulation layer is divided into a variety of specifications, three parts of the general insulation pad, one is the casing made of nylon, the first is the galvanized steel screws in the casing, and the third is the nylon disc in front of the casing, Its length and insulation thickness are different, so in general, the problem is divided into many types. <>

3. What should I do if the perforated brick insulation nail is not firm.

Perforated brick insulation drops, if you can't play it for a long time, you can only replace the insulation lamp, or replace the perforated brick again, one of the two can be one of the same, because most of the insulation lamps on the perforated bricks are firm, there are two main reasons, one is that the insulation nail is not good, the other is the type of perforated brick is wrong, these two need to be checked, of course, if there is no problem with the size of the two, it can only be said that the insulation nail is rusty, or other reasons, it is possible. So it needs to be replaced. <>

Perforated brick insulation nails, if you can't play it firmly, you can only replace the insulation lamp, or replace the perforated bricks again, one of the two can be replaced, because most of the insulation lamps on the perforated bricks are firm, there are two main reasons, one is that the insulation nails are not good, the other is that the model of the perforated bricks is wrong, these two need to be checked, of course, if there is no problem with the size of the two, it can only be said that the insulation nails are rusty, so they need to be replaced.

The porous brick wall is general, most of the compressive strength is low after masonry, the cavity in the brick body is very large, and the brick wall is very thick. It can be tightly fixed on the wall of various materials, especially suitable for the anchorage of perforated bricks.

Screw-in insulation anchors (also known as knotted insulation nails).

Can't nail, there are special insulation nails such as Tox nails, it seems to be a product of a German company, and the nails and nylon plugs work very well.

What I don't understand is why there are still a lot of insulation nails when hanging nets. Later, I learned that the original insulation nails were divided into many specifications, one was a hanging insulation nail, and the other was an external wall insulation anchor. In general, most of them are used for architectural decoration.

Exterior wall insulation anchorage plays an anchoring role in the insulation layer of the house, and the flatness of the cement nail hanging net is not as good as the insulation nail. If the net with the insulating nails is flat, it is relatively flat. After the renovation of my house, it seems to be quite firm to be honest, but some other masters say that it is not recommended to hang a net on the whole wall, as long as it is laid in the place where the old and new walls are combined.

Galvanized mesh has metal toughness, and when using cement plastering, large areas of protection may be hollowed out, losing their anti-cracking function, causing new problems.

The workability of mortar is not good, and the mortar is not easy to spread and extrude during masonry, which affects the fullness of the ash joint and weakens the adhesion between the mortar and the brick. Mortar has poor water retention and is easy to leak water in layers. The mortar in the ash tank is stored for too long, and finally the mortar sinks to the bottom and hardens.

Even if water is added and re-stirred, the strength of the mortar will be severely reduced. The low-strength grade cement mortar adopts high-strength grade cement and ultra-fine sand, which reduces the amount of cement, and cement is a cementing material for lubrication between sand particles, so the friction between the sand particles is large, the mortar workability is poor, and it is difficult to thin the ash joints during masonry. Moreover, due to the lack of sufficient cementing material between the sand particles to play the role of suspension support, the mortar is prone to precipitation and surface grouting .

The plasticized materials such as lime paste mixed into the cement mortar are of poor quality, contain more ash and sundries, or are dry and polluted due to poor preservation, and the workability of the mortar cannot be improved. The mortar stirring time is short and the mixing is uneven. The mixed mortar is stored for too long, or the mortar in the ash tank is not cleaned for a long time, which makes the mortar sink and harden.

The stirring mortar is unplanned and cannot be used up within the specified time, but the remaining mortar will be mashed and mixed with water and continued to be used. Low-strength grade mortar should be made of cement-mixed mortar. If there is indeed difficulty, it can be mixed with 5% 10% cement amount of microfoaming agent or fly ash to improve the workability of the mortar.

The mortar should use low-strength grades of cement and medium sand. When mixing, the construction mix ratio should be strictly implemented to ensure the mixing time. The mortar in the ash tank should be turned over frequently and cleaned with a shovel during use, and the mortar at the four corners of the ash tank should be scraped clean and piled aside to continue to use, or mixed with fresh mortar for use.

The mixing mortar should be planned, the mixing amount should be determined according to the needs of masonry, and the mixing should be used as soon as possible, and the small amount of storage should be as small as possible, so that the new mixing mortar often appears in the ash tank. The service time of mortar is related to the variety of mortar and temperature conditions, etc. Under general temperature conditions, cement mortar and cement mixed mortar must be used up within 3h and 4h respectively after mixing; When the temperature exceeds 30 during construction, it must be used up within 2h and 3h respectively.

Excess mortar beyond the above time shall not be reused.

Generally, the aperture is enlarged, and then concrete is injected into it, and after the concrete is formed and solidified, the insulation nail can be made here.

Special hollow brick expansion screws are needed, but they don't feel very strong and can only be hung, which does not make the expansion screws have expansion force.