What is glue for ceramic blocks: preparation and use

In ceramic block building, selecting the appropriate adhesive is essential to guarantee a sturdy and long-lasting construction. Because of their ease of handling and ability to insulate heat well, ceramic blocks need a particular kind of glue that can adhere to their surface. In order to get the best results, it is important to use the right adhesive when applying ceramic blocks, as this article explains in detail.

Because ceramic blocks are porous and lightweight in contrast to regular brick or concrete blocks, an adhesive that can effectively cling to their surface texture is required. For a strong bond that can endure environmental factors and structural loads, the adhesive used has to be compatible with the material composition of ceramic blocks.

Having everything ready is essential when using ceramic block adhesive. Make sure the surfaces to be bonded are dust- and debris-free, clean, and dry before starting. To maximize the adhesive’s bonding strength and longevity, this step is crucial. Additionally, you can greatly increase the adhesive’s overall effectiveness by learning the manufacturer’s recommended surface preparation and application techniques.

Applying ceramic block adhesive correctly and carefully is necessary. Using a trowel or an approved applicator, evenly and consistently apply the adhesive across the bonding surfaces. Steer clear of excessive adhesive buildup as it may compromise the blocks’ structural integrity and alignment. Before starting any more construction work, make sure the adhesive has had enough time to cure and set in accordance with the manufacturer’s instructions.

In summary, the properties of the material and the needs of the application must be carefully taken into account when selecting the adhesive for ceramic blocks. Builders and renovators can ensure a dependable bond that improves the performance and longevity of structures built with ceramic blocks by adhering to proper preparation and application techniques.

What masonry mixture is used for ceramic blocks?

When laying walls composed of warm ceramics and porous ceramic blocks, it works best to use specialized low-thermoconductive cement mixtures rather than traditional cement and sand. The performance of the solution is enhanced by the addition of additives, which also increase its strength, moisture resistance, frost resistance, and plasticity.

The thermal conductivity coefficient of Perel masonry mixture is lower. Cement, mineral filler, and polymer additives make up the composition.

By applying this brand’s solution, you can improve the walls’ ability to retain heat by 15% to 20%. Three kinds of heated mixtures are provided by the manufacturer to lay porous ceramic blocks:

  1. "Enhanced" – it has an increased level of strength.
  2. "Economical". This mixture is durable and “warm”.
  3. "Effective". The mixture is easy to use and has high thermal insulation properties.

Fundamental properties of Perel solutions

  • Compressive strength – less than 5 MPa.
  • Density: 1000 kg/m 3 for “Reinforced”, 700 kg/m 3 for “Economic” and 600 kg/m 3 for “Efficient”.
  • Thermal conductivity coefficient: 0.2 W/m*K for “Reinforced”, 0.18 W/m*K for “Economic” and 0.17 W/m*K for “Efficient”.

Every solution has a minimum half-life of one hour. In the summer, you can work in temperatures between +5 and +30 degrees, and in the winter, between -50 and +70 degrees.

Using a warm masonry mixture called porotherm minimizes heat loss through joints. Granules of perlite are added to it. In terms of performance, this material’s low thermal conductivity is comparable to the blocks’ own thermal conductivity.

Features of the porotherm solution

  • Strength – M50.
  • Density – 800 kg/m3 .
  • Thermal conductivity coefficient – ​​0.21 W/m*Co.

When a special solution is needed?

In the following situations, choosing a warm solution is advised:

  1. The object is located in regions with severe winters and changeable climatic conditions. The glue has lower thermal conductivity than cement, so its use allows you to keep the house warm.
  2. It is necessary to save on heating. A warm solution is more expensive than a classic cement-sand mixture, but the money spent at the construction stage will return in 1-2 winters in the form of small heating bills.
  3. Absence of a concrete mixer. It is not needed to dilute the adhesive solution. It is prepared in any container of suitable size.
  4. Compared to cement, the glue has better plasticity and increased adhesion to the surface. These properties are especially important when construction is carried out by a person without experience.
  5. The region where you live has a high level of humidity. The glue has increased moisture resistance and does not absorb water.
  6. The surface of the blocks is smooth. The glue is applied in a thin layer, it is not suitable for filling cracks and chips. For this purpose it is better to use cement.
  7. Work is carried out in the cold season. There is glue on sale that can be laid even at a temperature of -50 degrees. Classic cement mortar will not withstand such frost.

Compound

Since the warm adhesive mixture contains unique ingredients, it has a low thermal conductivity. The following additives are used to achieve the desired effect:

Depending on the brand, the adhesive solution’s composition may change. Nevertheless, adding perlite, pumice, or another porous material with a polymer base to the dry mixture lowers heat loss, strengthens seam resistance against frost, and stops moisture from penetrating and destroying the walls.

The primary binding agent is Portland cement. This material is made up of crushed clinker, which is a mixture of slag from blast furnaces, clay, and limestone, and building gypsum. The foundation of any warm masonry mixture is Portland cement.

How to cook properly?

How to prepare glue for ceramic block laying instructions:

  1. Pour the dry mixture into a container of suitable size.
  2. Pour water into it. For 1 kg of powder you will need about 0.4 liters of water. Its consumption is calculated from the total mass of dry matter.
  3. Mix the composition thoroughly. For convenience, you can use a construction mixer.
  4. Start laying blocks.

Crucial! Don’t whisk the mixture too hard. The perlite will crumble and turn into granular shreds if you ignore this advice. Consequently, as soon as the consistency of the solution is uniform, the mixing process is halted.

Flow calculation

The way glue is consumed varies based on the manufacturer.

The layout of the blocks, the location and thickness of the seams, and the characteristics of the surface it is applied to are all significant factors. The following is the average material consumption:

  1. To lay 1 m 2 blocks, about 1.5 kg of dry mixture is required if the joint thickness does not exceed 1 mm.
  2. For laying 1 m3 you will need 15-30 kg of dry mass, that is, 1 bag.
  3. If the masonry layer is 17 mm, then 1m2 will require from 0.9 to 2.2 liters of solution, depending on the format of the blocks.

The numbers provided are merely indicative. Considering every factor that affects the mixture consumption is essential for performing an accurate calculation.

Features of masonry

The following elements need to be considered when placing blocks on a heated adhesive solution:

  1. Before starting work, the blocks must be cleared of debris, dust and ice.
  2. Achieve as smooth a surface as possible. Exfoliated areas are cleaned and cracks are closed.
  3. The presence of mold on the blocks is unacceptable. If it is detected, the area is cleaned and treated with an antiseptic solution.
  4. A properly prepared mixture should stick to the trowel, but not stick to it too much.
  5. When preparing the solution, use only clean water at room temperature.
  6. The mixture hardens in about 60 minutes. Therefore, you need to prepare it in such quantity that you can spend it during this time. It is not possible to re-dilute the composition.
  7. The recommended seam thickness is 2 cm.

Duration of strength development

The components that make up the solution affect the setting and curing times. Twenty minutes is the typical setting time.

In just one day after the blocks are laid, the seams become stronger. But the last hardening happens after about three days.

Weather affects the rate of hardening. This process proceeds more quickly the hotter it gets. In wet weather, the composition solidifies more gradually. As a result, it is advised to lay summer mortar for masonry at a maximum temperature of +25 degrees. On a wet day, nothing gets done.

Main Thesis: Selecting the appropriate adhesive for ceramic blocks in construction is essential to guaranteeing the stability and durability of building projects. Structure longevity and strength can be greatly affected by applying and preparing adhesive correctly. This article discusses the significance of choosing the appropriate adhesive type according to the requirements of the project, offers advice on the preparatory measures necessary for the best bonding, and gives helpful hints for applying adhesive efficiently. Buildings can become safer and more resilient by improving the performance and dependability of ceramic block constructions through mastery of these principles.

Pros and cons of using warm ceramics

There are several benefits to using a warm adhesive mixture, such as:

  • Low thermal conductivity.
  • Homogeneous consistency.
  • Same composition.
  • Reliable and quick adhesion to the surface.
  • Easy to prepare.
  • No need to use a concrete mixer.
  • Frost resistance. The glue does not crack due to temperature changes.
  • The composition does not slip even when applied to a vertical surface.
  • Increased moisture resistance.
  • Good ductility.
  • Thin seams between blocks, which eliminates heat loss.
  • Possibility of use in the cold season (if you purchase a winter composition).

The following are some drawbacks of a heated adhesive solution:

  • High price. However, it pays off in the future due to heating savings.
  • Inability to use glue on blocks with unevenness: cracks, chips, etc. Although builders have learned to circumvent this drawback: if leveling of the surface is required, 2-3 layers are applied to it alternately, allowing the previous layer to harden.

average price

Warm glue costs vary depending on the brand, store markup, and brand recognition. In Russia, the average price for a 20 kg package is 380 rubles.

Winter-use glue is more expensive than summer-use adhesive. You will need to pay roughly 400 rubles for a pack. Purchasing a 50 kg mixture in a large volume is more cost-effective. In this instance, the cost per kilogram will be less.

Video on the topic

The following video explains how to prepare and use warm masonry mixture for ceramic blocks:

Selecting the appropriate adhesive for ceramic blocks is essential to guaranteeing a sturdy and long-lasting assembly. An important factor in the walls’ structural integrity is the adhesive’s application and preparation. It’s crucial to mix the adhesive correctly, following the manufacturer’s instructions. By doing this, the adhesive is guaranteed to reach its peak consistency and bonding strength.

It’s crucial to work quickly when applying the adhesive to ceramic blocks. Using a notched trowel, start by evenly applying a thin layer of adhesive across the block surface. As a result, the blocks are more properly covered and adhered to. Make sure the blocks are properly aligned by applying pressure to secure them in place. It is important to remove any excess adhesive as soon as possible to keep the finish neat.

Make sure the surrounding air temperature and relative humidity remain within the manufacturer’s recommended range while the curing process is underway. This lowers the chance of adhesive failure and aids in achieving ideal bonding. Give yourself enough time to cure before starting any more construction projects. In order to guarantee the ceramic block walls’ durability and stability over time, this step is essential.

It is advised to regularly inspect the adhesive application and curing procedure in order to spot any possible problems early on. By taking this proactive measure, future issues like crooked walls or weak joints can be avoided. These instructions for setting up and applying adhesive to ceramic blocks will help you create a stable, long-lasting structure that satisfies quality and safety requirements.

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Milan Yashina

Design engineer, specialist in development of design documentation. I will help you correctly design your home or other building.

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