How and what to glue metal to concrete: cleaning of

During construction work, it may be necessary to glue metal or other materials to the concrete surface. In order for such a compound to be strong and durable, it must be made with a suitable adhesive. Let's talk about this in more detail.

Bonding Metal to Concrete Surface

For gluing these surfaces, mixtures based on epoxy resin ED-20 are used, the price of which is on average from 300rub / kg. Besides it, several more components are a part of such glue. Their mass parts are shown in the table below.

Cleaning items

To get a quality mount, you must first carry out thorough cleaning of the surfaces to be joined.

Instructions for its implementation is as follows:

• Flat steel elements are cleaned of rust using sandpaper or sandblaster;
• Details of rounded shape are processed with a metal brush or emery;
• Concrete at the glueing site is brushed, and then blown with compressed air.

Glue preparation

The technology of creating an adhesive composition is as follows:

• The first part of the mix is ​​created. - Epoxy resin is taken and a plasticizer is mixed with it. Then, in the resulting substance is added to the filler. The resulting mass is divided into several parts, designed for a single use, and is packed with its own hands in sealed containers;

• The second part of the mix is ​​created.consisting of a hardener and a thixotropic additive, the volume of which depends on the required viscosity of the adhesive - the higher it is, the greater will be the mass portion of this component. The resulting solution, as in the first case, is packaged in small containers.

Priming concrete

In this case, as a primer, a solution is used, its composition is similar to the first part of the adhesive mixture. The only difference is that it uses acetone, not dibutyl phthalate, as a plasticizer. The prepared solution is applied to the concrete surface with a brush.

Bonding Parts

Mixing the first and second parts of the adhesive mixture, you can begin the installation process:

1. metal and concrete surfaces are covered with a layer of glue, 2-3 millimeters thick;
2. the steel part is installed as required, pressed against the concrete and fixed in this position;
3. After a day, you can proceed to the operation of the glued product.

Recommendations for bonding other materials to concrete

Penophole

To solve the problem of how to glue penofol to concrete, you can in the following ways:

1. the use of special glue, such as Weicon_EasyMix - a two-component composition based on methyl acrylate;
2. application of self-adhesive foam foam.

The first method is more costly because it requires the purchase of Weicon glue. However, it should be recognized that this composition is universal.

This means that its remnants after installation will be useful for other tasks. In particular, if you are looking for, than to glue the isolon to concrete, you can not acquire other adhesive materials, but use the composition of Weicon.

Tip! When deciding how to glue the polyethylene to the concrete, you should give preference to the above composition. With it, you get a quality and durable connection.

Plasterboard

To attach this material to the concrete surface, plaster putty should be used. It is applied to the drywall sheet around its perimeter with a notched trowel. In addition, two or three lines are held in the center of the workpiece.

This method is only suitable for those walls that have a deviation of no more than two centimeters. If this value is exceeded, then a different method of attachment will be required. It consists of using special dry blends, for example, Knauf Perlfix.

The prepared composition is applied in small piles, placed around the perimeter of the sheet every 20-25 centimeters. In the central part of the product, lumps of the mixture are placed at a distance of 30 ... 40 cm between them.

Tip! Before you glue the drywall to the concrete wall, you should find yourself an assistant. This will greatly facilitate the work process, especially given the fact that each sheet of GCR weighs about 30 kilograms.

Ruberoid

One of the difficult issues encountered in the construction process is how to glue the roofing felt to the concrete. For this, bitumen mastic is usually used. It is applied to the concrete surface with a construction roller or brush.

Later, it, along with the roofing material, is heated by a torch, and then the sheet is glued to the concrete. We draw your attention to the fact that before gluing the roofing material to the concrete, you should give the mastic how to dry. This will help to obtain a durable coating.

Plastic

The problem of how to glue plastic to concrete is well solved with the help of construction glue TITAN. This is a ready-to-use one-component composition with good adhesion, as well as water and frost resistance.

Another good option of how to glue PVC to concrete is to use the Moment_Germanment multi-purpose adhesive-sealant. It allows you to glue high quality products from polyvinyl chloride, polystyrene and other plastics.

Rubber

When deciding how to glue rubber to concrete, you can opt for the first of 2 points - this is the use of a special adhesive mixture or mastic. An example is glue 88-CA. It is intended for cold gluing rubber with a concrete, wooden, metal or other base.

Conclusion

For bonding metal to concrete, you need a two-component epoxy adhesive, which can be made independently. The first component is an epoxy resin with a plasticizer and a filler, the second is a compound of a hardener and a thixotropic additive.

Before direct use, these two elements are connected, and the composition is ready for use. If you need more information about the issue - see the video in this article.