Currently, the installation of chemical anchors is a procedure that has no analogues, and the possibilities that it opens up are quite wide. Let's take a closer look at it.
Chemical anchor
It is worth starting with the fact that now chemical anchors have replaced the usual and familiar fasteners. This is due to the fact that this type of fastening bypassed any others in the field of withstand loads. In addition, installing chemical anchors is a quick way to fix any suspended structure. Due to the fact that the installation of the anchor is a simple, very effective and fast way to fix a heavy suspended structure, this affects the number of possible design options for construction projects.
The general installation process is quite simple and almost instant. Installation of a chemical anchor is carried out using a special chemical composition, which is introduced into a pre-drilled hole. After the introduction of the composition, after a short period of time, it completely hardens.
Using Anchors
The enormous popularity of chemical anchors is due to the fact that they are many times superior to all conventional materials used for fasteners in terms of their technical characteristics. The use of this type of fastening guarantees the most durable fixation of any suspension element, to almost any material.
Simple installation of chemical anchors opens up enormous opportunities for their use. With this product, it is possible to attach a variety of structures to surfaces such as brick, stone, concrete, etc.
It is also possible to use anchors of this type when working with hollow materials. To use the anchor in working with such material, it is necessary to have a nipple with a special hole. Also, thanks to the advent of chemical anchors, it has become possible to fasten structures to materials such as stainless, galvanized or carbon steel.
Anchoring Technology
The technology of installing a chemical anchor is inherently a chemical process between the base material and the anchor itself. A special solution for fasteners is a hardener and a polyester resin.
These chemicals are sold either in ampoules or in tubes (also called cartridges). It is during the mixing of these two substances that physical and chemical processes begin to take place , which lead to the strongest hardening, which ensures reliable fixation.
If we talk about ampoules, then their size is fully consistent with the size of the anchor itself. Between each other, each ampoule differs only in its diameter, and therefore each of them should be used only in a suitable hole size. An ampoule with the substance is inserted into it, and then screwed there or clogs the hairpin.
Cartridges
The cartridge design is also quite simple and convenient. When inside the package, the chemicals are separated. Their mixing occurs only during the extrusion process. This is carried out using a nozzle, which is located inside and is made in the form of a spiral.
The difference between the cartridges is in their size, as well as in the layout of the department with the chemical. It is also worth saying that the process of squeezing the substance out of the cartridge is quite convenient, since a metering gun is used for this procedure.
The main advantage that the cartridge gives out is the possibility of its use for filling holes with absolutely any size. However, it is worth mentioning that in this case, for use, you will have to install a perforated polyester cartridge in the hole. Only then can the filling begin.
Drilling
The installation process of the anchor is a full-fledged operation, which is performed in several small steps:
- First you need to drill a hole in the base. In order to facilitate this process, diamond drill bits are used. Diamond drilling of holes for installing chemical anchors is a quick and high-quality way to make a hole in the right place.
- After drilling is completed, it is necessary to use a construction vacuum cleaner that will collect all remaining dust and debris from the hole. This must be done, since the place must be clean before filling the substance.
- After cleaning, you can start pouring the substance into the hole, as well as the subsequent installation process of the preparatory anchor bolt or the reinforcement bar.
- After completing this procedure, all that remains for builders is to wait for the process of solidification of the chemical composition.
When this step is completed, the installation of the anchor is completed.
Chemical Anchor Installation Act
In order to install a chemical anchor, it is necessary to conduct a technical analysis of the base to determine its parameters. This procedure is quite important for the effective choice of anchor. In addition, it is necessary to conduct static and dynamic calculations for given loads in order to determine whether the selected anchor will cope with them. It is also worth saying that when using this type of fastening, it is necessary to take into account the characteristic of its polymer base.
All these parameters should be present when drawing up an act on the installation of chemical anchors. This procedure is regulated by SNiP 2.09.03-85 “Construction of industrial enterprises” .
Hilt Anchors
It is impossible not to say that among the buyers, Hilti anchors are very popular. If you purchase products of this particular company, it is better to know the nuances of how the installation of the chemical anchor "Hilti" is carried out:
- The installation process begins the same way as when installing any anchor - it is necessary to drill a hole using a drill.
- After that, you need to choose a stud, which will fit in diameter, under the hole made. However, it is worth noting that the hole should still be several millimeters larger. It is also important to note that its walls should be somewhat rough.
- After that, the space is cleaned and purged. It should be said that in order to achieve maximum efficiency from the original Hilti anchor, purging must be carried out only by professional devices. It is not recommended to use any improvised means, since in this case dust may remain on the walls of the hole, and this will reduce the efficiency of anchoring the anchor by about 80%.
Benefits of Anchors
The described mounts have a rather significant number of advantages:
- The tightness of the hole that is created to install the chemical anchor.
- The scope of the devices is quite large.
- The ability to withstand the negative effects of the environment.
- Subject to the installation technology, one can count on a long service life of more than 50 years.
- The composition of the chemicals used to harden the material does not include hazardous to health elements.
- There is no need to have vast experience in construction or a set of complex or expensive tools for installation.
- Drilling holes for installing chemical anchors can be done with a conventional drill.
- The strength and reliability of the joint that is created by the chemical anchor is very high.
However, this type of mount has a significant drawback - the high cost of production.