Concrete fasteners: popular varieties and features of their

Probably, it is not a secret to anyone that fasteners designed for use with ordinary building materials are practically useless when mounting on concrete. It is quite another thing - a special fastener for concrete, which is functional, durable and durable.

That's it about these products and the features of their use, we will discuss in this article.

The choice of mounting hardware

The range of mounting hardware designed to work with concrete and other hard materials is wide and diverse. Moreover, all these products are distinguished not only by price, but also sizes, configuration, strength characteristics and application features.

So, what are the most common types of fasteners hardware and what are they for?

Anchors and their varieties

The most popular fastener for foam concrete and similar materials with greater density is the anchor. Through such hardware, you can fix the majority of various designs, starting with metal cable channels for laying utilities and ending with double-glazed windows and heavy door frames.

The instructions for the functioning of anchors, regardless of their sizes, are the same: as the fastening element is tightened, the seal expands, which opens and cuts into the walls of the hole. Due to this principle of action, the anchor is not only firmly fixed in the concrete wall, but also securely holds the fixed objects.

At the moment, there are several varieties of anchors. Let us consider the most popular types.

Hammering modification

As the name implies, this type of anchors is inserted with their own hands into a pre-made hole and driven in with a conventional hammer.

Important: For high-quality installation, the hole in the concrete must be made with a drill of appropriate size. Moreover, it is desirable to drill, rather than perforate, so that the walls of the hole are smooth and dense.

The technology of installation works with the use of such hardware is simple:

• applied to the surface of the productto be fixed, and mark with a pencil the places in which the anchor will be located;
• drill holes drill with pobedit weld over the required depth;
• blowing concrete dust from the holes (this is a must!);
• we apply a product to an opening;
• insert fasteners and drive them in until they are completely submerged in the surface;
• we screw a special hairpin into the anchoron which the nut is fixed;
• after the object is fixed on the surface, with the effort we check the fixing strength and the quality of the installation.

Important: The use of driven anchors is not recommended for low density concrete surfaces.

V-type anchors

The wedge anchor, in contrast to the driven counterpart, does not require hanging the mounted object before the pin is fixed. In addition, the drilled holes do not have to be cleaned from dust. The mounted object is hung on the anchor mounted in the hole, after which the nut is tightened and the fastener is clamped.

This type of hardware includes zinc plated and stainless mounting elements, the head of which can be flush with the surface of the fixed material. Because of this feature, this type of mounting device is actively used during the installation of door and window frames.

PFG Anchor Bolts

This kind of hardware is designed for installation, as in the usual types of dense concrete, and in the design, made of porous materials. These fasteners are an excellent solution for use in old buildings with insufficiently strong plaster.

The functionality of hardware of this type is explained by a large area of ​​expansion. As a result, if an ordinary anchor can be pulled out of an insufficiently dense base, this type of hardware cannot even be loosened. The main part of the anchor is driven into the wall, after which the object to be mounted is attached, which is fastened by means of a bolt (stud).

There are several varieties of PFG anchors available on the market for fixing cables. The stud on such hardware does not end, as usual, with a bolt head, but is a solid ring or hook. In addition to the cables, a chandelier successfully clings to such hooks.

A separate modification of anchor bolts PFG equipped with a ending in the shape of the letter “G” and is the best solution for the installation of boilers with a volume of up to 100 liters.

Chemical anchor

Such fasteners are not widely used because of the high cost and complexity of installation. The basis of the fixing process is the use of a special chemical composition with an adhesive action.

A chemical anchor is an excellent solution for mounting heavy objects on various types of walls. The advantage of this method lies in the small area of ​​expansion of the fixing element. As a result, the concrete base on which the installation is carried out does not undergo a damaging effect.

Installation is as follows:

• a hole is drilled to fit the ampoule with glue;
• the hole is cleaned and blown from dust, after which the ampule is inserted into it;
• then a hairpin is screwed into the ampoule;
• after the composition dries (on average no more than 5 minutes), the pin is unscrewed, then the item to be mounted is applied, which is finally fixed by the pin.

Other types of hardware for installation work on concrete

In addition to these varieties, other fasteners are also on sale. For example, in the construction of large construction objects, mortgage clamps are used. In fact, this is a kind of anchor bolts that is not used in individual construction due to its large size.

A separate category of fasteners hardware is screws. Self-tapping screws for concrete are made of hard alloys and screwed into a pre-drilled hole without the use of seals. The head of self-tapping screws for concrete surfaces does not have notches for a figured screwdriver, instead of them a hex head or a recess for a hex key is used.

Conclusion

So, now you know how and how to fix the timber to the concrete. It remains to choose suitable fasteners and perform the planned installation work. You will certainly find more useful information by watching the video in this article.