Features of laying aerated concrete blocks with glue, correct application technology

Aerated concrete block laying has gained popularity among builders because of its many benefits, which include superior thermal insulation and ease of handling. However, it is essential to use the appropriate adhesive and apply it according to the right procedures to guarantee a sturdy and long-lasting construction.

When compared to conventional mortar, using glue made especially for aerated concrete blocks improves bonding and lowers thermal bridges. Both overall structural integrity and energy efficiency are enhanced as a result. With a little knowledge of the proper application techniques, you can easily achieve a solid, smooth wall.

We will examine the methodical procedure for applying glue to aerated concrete blocks in this guide. We’ll go over every crucial step to make sure your project turns out well, from setting up the foundation to putting on the glue and arranging the blocks. These pointers will assist you in achieving professional results whether you’re an experienced builder or a do-it-yourself enthusiast.

Is it possible to use the material for laying aerated concrete blocks??

When laying walls made of this material, many inexperienced masters frequently forget to use the adhesive mixture meant to hold the blocks together. This is because only those who recognize all of the material’s benefits use it, as it is not yet widely accepted enough.

Traditional masonry mortar, which is made up of the right amounts of cement, sand, and water, is frequently used by builders. However, this kind of solution isn’t helpful in every situation; it works best for the first row of block-aerated concrete because it makes the connection between the first stone row and the foundation more dependable.

When installing walls made of aerated concrete blocks, it is advised to use a specific adhesive composition. Here, we are not discussing tile adhesive; rather, we are discussing the adhesive mixture that is made in 25 kg paper bags. It cannot be used because, in comparison to special glue for block aerated concrete, it will not offer the required adhesion and will be significantly more expensive.

A simple yet very effective way to construct strong and energy-efficient walls is by using glue to lay aerated concrete blocks. By substituting specialized adhesive for conventional mortar, this method ensures a stronger bond, lowers thermal bridging, and expedites the building process. The use of the right application technology is essential, including leveling and cleaning the surface, placing the blocks precisely, and applying enough glue. Builders can achieve the best possible insulation performance and structural integrity in their projects by learning these steps.

Types of compositions

Two composition types are utilized in the construction of aerated stone walls:

• Winter. Available in gray color, as anti-frost additives are added to its composition. Winter glue can be used at temperatures down to -10 degrees – it will not set quickly and will allow construction to be carried out even in the cold season without losing its properties.
• Summer. Available in white powder, it is best used at positive temperatures.

For interior wall installation, summer glue works best, and for exterior work, winter glue.

Here is where you can read reviews and prices of adhesives for laying aerated blocks.

Materials and tools for application

In order to install aerated stone walls on your own with glue, you must also get ready the following equipment:

• several plastic buckets;
• drill with mixer attachment;
• spatula with teeth;
• Master OK;
• building level or laser level;
• rubber mallet;
• square – for laying out corners;
• plumb line and cord;
• grater;
• wall chaser;
• hacksaw with blade for cutting stone.

Consumables like waterproofing and reinforcement bars are also necessary to fortify the walls and hold back water. Water from a tap is ideal; it should be medium-temperature, not hot or cold. River or seawater cannot be used for drinking. When laying the first row of stone, screws or self-tapping screws can also be helpful for installing beacons.

How to lay it yourself correctly?

The master starts by getting the solution ready by gradually adding the contents of the bag to a water container and starting to mix with a drill. Once the solution is ready, it is left to stand for a while (the amount of time usually indicated on the glue bag). After another mixing of the solution, work starts.

Learn a few tricks for using glue to lay blocks:

1. Correct application of mortar to stone. To properly apply the solution, you need to use a trowel and a notched trowel. The solution is taken from the bucket in small portions using a trowel and evenly distributed on the surface of a notched trowel. Using a spatula or a special carriage with teeth, apply a layer of glue to the stone that is already in the masonry. Then the stone used is placed on it and pressed. Correct the position of the stone using a rubber mallet.
2. Stone cleansing. After one of the rows is laid, the stones of this row need to be floated along the upper plane. This will provide better adhesion to the glue and the next block. The grater is passed several times in both directions in the place where the next block will be laid. Then, using a wide brush with stiff bristles, remove all the dust formed from rubbing.
3. Block correction. The block can be adjusted in the first 10-15 minutes after its installation using a mallet. To do this, use a level and the mallet itself, tapping it slightly on the surface of the block. The cord must be pulled on a plane – this will help the master navigate the horizon.

Before placing the next stone, you can use a spray bottle to mist the surface with water to stop the glue from drying too quickly. The side seams receive the same application of the solution as the bottom seams.

Difficulties and errors

There are various mistakes and challenges that you could run into when building:

• improper preparation of the solution;
• lack of grinding and leveling of the block;
• incorrect choice of adhesive mixture;
• lack of cleaning the stone before laying.

You won’t be able to get the right consistency if you misprepare the solution—for example, by adding too much glue or water.

Many people make the error of adding a small amount of water to the solution that has already frozen in the bucket in the hopes that the solution will "restore functionality."

This is not necessary because the adhesive composition will lose its properties, it will still be impossible to achieve a normal consistency, and stone laying will be deemed unacceptable.

The degree of adherence between the stones and the glue lowers if the block is not leveled and sanded before being laid with a specialized trowel. Frequently, a stone’s imperfect geometry requires some minor "correction" of its shape. This process is helpful in the future when aligning multiple blocks, so you shouldn’t skip it.

When selecting an adhesive mixture, it is important to take the temperature of the area where the masonry will be installed into account. If summer glue is used in sub-zero temperatures, the seams will eventually crack and the masonry will need to be redone.

Dusting should be done before the stone is laid. Use a stiff-bristled brush to carefully remove all dust and debris in order to accomplish this. Wetting the block is a smart idea if you want the solution to stay "viable" for longer.

Pros and cons of using the product

When using adhesive compositions to lay blocks, craftsmen observe several key benefits:

1. Complex composition compared to cement-sand mixture. This factor gives a lot of advantages and nuances and allows you to use the glue in different temperature conditions without losing its properties. If the CPS contains only sand, cement and water, then special additives and plasticizers are added to the adhesive solutions, which can retain water, make the solution more elastic, and add frost resistance mixtures. The sand used here must be fine-grained and sifted, which is why the solution is homogeneous and easy to use.
2. Good operating conditions after laying the walls. If you use an adhesive solution, the house will be warmer in winter and cooler in summer. This result can be achieved by a thin masonry seam, about 3 mm, which prevents the appearance of cold bridges.
3. Ease of use. The master does not need to measure, weigh materials, sift sand. Everything is sold in ready-made proportions, you just need to mix the raw materials with water and mix with a drill with a mixer attachment. Manufacturers always indicate on the bags the time for “holding” the solution and the time for correction.
4. Strength of masonry. After using the glue, the strength characteristics of the masonry increase: it becomes resistant to bending and compression, since the composition has a cohesive nature of adhesion between the stone and the glue.
5. Economical consumption. One bag of the mixture is enough to lay 1 cube of aerated stone. This is much more economical than laying blocks on cement-sand mortar.

There is a false belief that the cost of masonry is greatly increased by the use of glue. Its cost in comparison to DSP is not significantly different because of the decrease in raw material consumption.

There are disadvantages to using glue to lay aerated concrete blocks. Quick settings are one of them. The packaging frequently states that it will take 10 to 15 minutes to fix the masonry block.

It implies that in order to precisely adjust the block after it has been placed, the stacker must use a level right away. The block cannot be changed after the deadline if this is not completed. The low "survivability" of the solution is another drawback. The master must therefore combine the raw ingredients in tiny batches.

Aerated concrete blocks laid with glue have many benefits, such as improved thermal insulation, faster construction, and a smoother, more accurate finish. This approach works particularly well for contemporary construction projects where quality and efficiency are critical.

For the structure to be stable and long-lasting, the glue must be applied correctly. It entails priming the surfaces, spreading a thin layer of glue, and making sure the blocks are lined up correctly. By paying close attention to details, common problems like thermal bridges and cracks can be avoided during this process.

With aerated concrete blocks, builders can create a sturdy and energy-efficient structure by adhering to the suggested guidelines and methods. This methodology not only optimizes the building’s operational efficiency but also fosters a more environmentally conscious construction process.

All things considered, utilizing glue to install aerated concrete blocks is a big improvement over more conventional techniques. It expedites the building process, improves the building’s features, and encourages better craftsmanship.

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