Dowel for hollow bricks: features, types and recommendations

Recently, various hollow and sheet materials have been widely used in construction. This can be plasterboard, plywood, particle board and OSB, hollow brick. These materials are widely used for the construction of buildings, the construction of partitions in the premises. Without them finishing works do not do. Recently, new and more technologically advanced materials have been searched for, which could replace the usual full brick, wooden beams, concrete and even foam blocks. In this regard, in the construction industry, it becomes very important to use fasteners for such structures and sheet material. Here, for example, a dowel for hollow bricks. This is one of the possible options.

Hollow brick

What is this material? In modern construction, two types of bricks are used - it is hollow and full-bodied. The main function of the first materials is the construction of buildings, which must be as strong and durable as possible.

This brick is good in all respects. The material is lightweight, sturdy, easy to install. However, he has a significant drawback. It does not keep heat in the rooms. Although hollow brick practically does not differ in strength from solid, but it is often used in finishing works. The internal emptiness in such a building material can be 30 to 50% depending on the type and manufacturer. As a raw material for such blocks, low-melting grades of clay are used. It is from this that a red brick is produced. There is another option. This is a silicate hollow white appearance. Let's look at the features and properties of the mounting blocks.

Features of hollow block

This building material has some features. Due to the voids in the rooms, the heat is perfectly preserved. Using this brick in the construction of a residential house, you can ensure a high level of conservation of thermal energy in the cold. In addition, hollow materials are characterized by good sound insulation. These types of bricks are resistant to various climatic conditions.

Blocks are able to withstand 40-degree frosts without problems. Hollow brick has a good appearance. In the modern market, there are many options for facing material. Available in various colors and textures. In the construction of hollow bricks, there is no need to create deep foundations. This greatly simplifies the work process. This type of brick is much lighter than all other materials. Therefore, the construction of it will withstand even the simplest foundation. It is very advantageous to buy this brick - its price is much lower than solid analogues. There is a build from such a block, you can save up to 30% of the funds. Also hollow blocks are inexpensive in transportation, since their weight is much lower than solid cores.

Types of fasteners for hollow materials

But do not think that such materials are too fragile. Through them you can even build various types of communications.

For this building material, more and more different fasteners have been invented and created. For example, it is a dowel for hollow bricks. And this is only one of the species. There are many varieties of fasteners. каждого из них. Below we will consider the features of each of them.

Dowels: characteristic

Fasteners in the form of dowels - this is probably the most common and cost-effective option. Its shape is non-standard and looks like two uniform thickenings. One of the most popular types of this fasteners is a dowel for hollow brick type "butterfly". The main element of this product is a special piece in the form of a sleeve. A special locking screw or screw is screwed into it.

Types of dowels

There are several kinds of elements. All of them are designed for fastening. With hollow bricks, you can use a universal dowel-nail. It is made of aluminum or steel. There are analogues of plastic (for example, a plastic dowel for hollow brick ML Mungo). Its price is from 6 to 11 rubles per unit.

Dowel nail

So, the classic version of the dowel-nail is the most universal solution. With its help, you can perform the installation of various frames, attach pieces of furniture to the wall, fix household appliances and solve a wide range of tasks.

However, experts do not really recommend using these fasteners with hollow building materials. In this case, other elements should be applied. Fasteners for brick masonry differ from the nail in the increased size and the presence of a double-extension mechanism. Such fastening element can be made of metal or plastic. With regard to the reliability of fasteners, it is provided by spacers, which in the process of clogging will not fall into the void, but into the solid part. It is through this that the required fixation is provided. Spacers are unclamped by screwing a threaded screw or stud into it. An example of such fasteners is the Mungo dowel for hollow bricks. The device has proved itself in the market as a reliable fastening element.

Facade

These fasteners are used for the installation of hydro and soundproof materials. But also this universal part, which is widely used with any kind of materials in virtually any conditions.

Today, a facade dowel is made for a hollow bricks of two kinds - anchor and plate. The plate variant is suitable for installation of heat-insulating materials. Anchorage is used to install brackets for a ventilated facade.

Mounting of elements in brickwork

How to hammer a dowel into a hollow brick? Preliminary it is necessary to make a hole of appropriate dimensions - along the length and diameter of the fastening element. Then, the plug with the screw is inserted into the clogging tool. Next - install in the hole. After that, the screw is hammered into the hole, and the spacers - automatically divorced.

Anchor

The anchor for working with hollow bricks also has two thickenings on the body. Such fasteners are designed with full consideration of all characteristics and features of hollow building materials. At the heart of such fasteners is a rod with a thread. The length is such that on its basis it is possible to erect even thick structures. This element is fixed by the spring. The latter provides support. Working with anchors is very fast and convenient.

Chemical

A chemical dowel for hollow bricks is a product of modern technology. It uses special substances that need to be introduced into the mounting hole. The connection will gain strength as it solidifies.

Chemical compounds work on the basis of cohesion and adhesion forces. Apply this fastener for joining and fixing various building materials, as well as structures and products from different materials. With regard to the strength of the joint, which can be obtained, it is highly reliable. It significantly exceeds the characteristics of any friction anchors, spacer dowels and other types of fasteners. A chemical dowel for hollow bricks creates joints where the pull force is 2.5 times greater than any traditional one.

Varieties of chemical anchors

This dowel consists of special glue compositions, as well as a metal insert. It is a bushing inside which the thread is cut. Also in structure of a construction there is a hairpin and an armature rod. This element is made of stainless or galvanized steel of different grades. The process of connecting fasteners of this type is carried out at the expense of a special chemical composition - by its characteristics this glue. It must be filled in a pre-drilled hole. And then, due to the polymerization process, a strong bond between the hollow brick and this connector will be ensured.

Types of chemical dowels and installation methods

Compositions-glues are usually two-component. They are prepared immediately before the installation work. Often, this composition can be bought either in ampoules for a certain diameter and length of the hole, or in special cartridges and other packages. Such a package consists of two compartments. In one is the glue itself, in the other is hardened. During the installation work, an ampoule is inserted into the prepared holes, and then the mounting metal rod - it will crush the package with the glue. Next will begin polymerization, which will provide the necessary strength. Mounting with cartridges is performed by extruding the glue and the hardener in the required proportions, mixing the substances. Then the resulting mixture is pumped into the hole. Specialists in construction work are very positive about these products. There is nothing easier, how to fix a dowel in hollow brick, porous ceramic block or in aerated concrete. In addition to such designs, specialists install a perforated sleeve. It prevents strong outflow of adhesive into the voids of the building material. The connection created in this way has high strength and reliability. There are no analogues today.

Pros of using chemical dowels

When using this type of connection, no tensile stresses occur.

The hole after installation will be completely sealed. Simplicity of installation is an important advantage. Another serious plus is the universality and high durability of such a solution. The glue is very resistant to any types of destructive effects. Durability of the joint is about 50 years.

Disadvantages of a chemical anchor

The first and main disadvantage is the price. It is 50% higher than the wholesale, which sells a dowel-nail for hollow bricks. The second disadvantage is the shelf life of the open glue pack. This period is relatively small. And, finally, a sufficiently long process of polymerization.

Conclusion

Hollow brick is a building material that helps to keep heat in the room. Build it inexpensively and efficiently, especially since there are so many different fasteners for it.