Criteria selection of anchors for aerated concrete

It is known that aerated concrete is a fairly lightweight building material and also porous. Ease and porosity are considered the main and most important advantages. But still this structure has its own flaws – for example, in such a block, it will not be completely kept self-sufficiency, it is impossible to even fix the nail. Therefore, to solve the issue with fasteners in a gasket, you need to score anchor.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Peculiarities

Anchor fasteners make up two main details.

  • The spacer, that is, that after mounting changes its own geometry, thus ensuring the strong fixation of the anchor directly into the thickness of the material with the porous structure. If we talk about chemical anchors, the part that is not solid, and the liquid, easily seeps inside the pore, contributing to a sufficiently reliable fixation.
  • The rod inside, that is, the part that is fixed in the most spacer.

The spacer detail has a border and cuffs, thanks to which the mount will not be able to fall into the drilled holes. The design in length is different – starting with 40 mm and finishing 300 mm. The diameter is usually not more than 30.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Varieties

Anchor used for aerated concrete, According to the attachment technique, divided into several separate types:

  • chemical;
  • Mechanical.

Each of the species has its advantages and disadvantages, as well as fasteners. It is worth a particularly part of the features of both types.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Chemical

According to the principle of fixation, each chemical element is based on the following, in such a porous material, like foam concrete or aerated concrete, the binding type of substance penetrates, then this substance is frozen and forms a monolithic compound when frozen. This system is infrequently applied, and yet without it simply can not do when anchors need to withstand a sufficiently large load. One capsule contains polymers with organic resins.

Consider how to spend competent installation.

  • To begin with, a hole is drilled in porous aerated concrete building material. Enable in this work better ordinary drill.
  • Ampoules are inserted into pre-drilled holes, where specialized chemical compositions are contained.
  • It is necessary to divide the ampoules, and then insert into the same hole of the metal rod.
  • Now it remains to wait for the moment of pouring the binder element. Usually allocate for several hours, and sometimes day.

Criteria selection of anchors for aerated concrete

This system has its own advantages:

  • the ability to withstand a colossal load;
  • Under the anchor does not penetrate the dampness and moisture at all;
  • In the place of the attachment will not arise the bridges of the cold;
  • The compound is sealed.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

If you list the disadvantages of this design, then you can attribute here an impossible dismantling of anchors. It is also worth noting that such products are quite a road compared to other types of fixtures.

Massa-Henke and Hilti – the most famous production of chemical fasteners. The products of world manufacturers price is respectively larger, but here you can remain completely sure that the quality of the mounting system will remain at the level.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Epoxy

Chemical anchor bolts created on the basis of epoxy resin are used during installation on the strongest basis or base, for example, on concrete. These bolts with a similar effect can keep the suspension structures that are attached to concrete surfaces and not only, and the bolts perfectly hold the suspended construction attached on the ceiling beam from reinforced concrete. Often use these products for fixing a variety of equipment.

Epoxy type of anchor bolts has its advantages.

  • Mounting data of items is possible even in water or with moisture existence.
  • Installation using bolts data can be inside indoors or from inside.
  • In the mounting hole, the local voltage type is minimized, so there are no cracks in the zone of anchor compound.
  • The resin does not contain styrene.
  • Products are used both to fix smooth studs and for threaded. This property is constantly used when mounting the reinforcement rod.

On the mounting anchors made on “epoxy” will also influence air, or rather, its temperature. The first grasp occurs within 10 minutes, and then the time can delay up to 180 minutes. Full solidification occurs after 10-48 hours. Only after 24 hours of construction can be lit.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Polyester

This type is sufficiently extensively used to fix various parts of the suspended facade on the gas-concrete basis, are also used to mount the translucent facade, communication network and engineering. In the form of a rod use only threaded type studs, they can be metallic or plastic.

To get even more durable compound, recommend applying a special conical mold drill when drilling. In polyestere resins, it is absolutely no styrene, respectively, such resins can be used with confidence to fix the suspended parts located in the building.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Mechanical

Achieve a reliable fixation when installing mechanical anchors helps the strut of fasteners, which tightly holds the body anchor inside the porous building machine. It usually consists of such fasteners from a special tube, which is inserted into the holes. It changes its own geometric shape in the end of screwing or at the time of clogging the inner rod.

Among the advantages of this fastener:

  • Anchor are installed in the fumes of the aerated concrete quite simple;
  • a lot of time to mount the system does not go away;
  • All load will continue to be distributed evenly;
  • After mounting an anchor to performing the installation of mounted elements, you can move immediately;
  • The mounting system can always be dismantled when the need appears.

Criteria selection of anchors for aerated concrete

It is easy to perform and install rods:

  • For the beginning, the opening of the required diameter is drilled;
  • Next, insert the tube inside the finished hole;
  • Upon completion of the work, you need to independently set the spacel view of the rod, that is, the one that can be screwed at any time and score.

Criteria selection of anchors for aerated concrete

Most large manufacturers, for example, HPD, Hilti or Fisher GB, argue that supplies products with guaranteed quality. Usually, this type of anchors is made of sufficiently strong materials – stainless steel. And all the same, these products may be overlooked, and this is perhaps the most important flaw.

If, when erecting houses that build from a gas block, you need to use anchor, that is, flexible ties. Domestic manufacturers are engaged in the manufacture of fasteners.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

Anchor is made from basaltoplastic rod. Sand spraying on anchor allows you to achieve the best clutch with cement. In addition, a flexible connection created from steel material (stainless steel) is produced by the German company Bever.

To the common point of fasteners, which are used when working with aerated concrete, also include an anchor-butterfly. The fixation of this product is carried out with the help of segments of petals, they are fixed firmly on a gas-concrete porous building material. This type of product is supplied by MUPRO manufacturer.

Criteria selection of anchors for aerated concrete

Criteria selection of anchors for aerated concrete

conclusions

Despite the existing opinion, according to which it is impossible to fix anything on a porous concrete, the use of anchors can provide a truly reliable mount. At the same time, the chemical fasteners can withstand quite large loads. That’s just buying products, you should still have a proven manufacturer who gives a warranty on all its products.

Further see an observation review for Fischer FPX – I.

Rate article
( No ratings yet )
Share to friends
Rebuildhom.info - construction and repair, dacha plot, apartment and country house, useful tips and photos
Add a comment