Constructing masonry using the thin-bed method - Collomix helps with it

Constructing masonry using the thin-bed method - with a system!

Collomix offers a complete range of tools for the production of high-quality masonry using the thin-bed method.

Whether the masonry is made of plane bricks, sand-lime bricks or aerated concrete, the masonry in modern solid houses is now built using the thin-bed method. In comparison to the classic standard mortar method, which uses brick trowels and has a one centimeter thick layer of mortar between the bricks, the thin-bed method only applies a thin layer of adhesive mortar of up to approx. three mm between the rows of bricks, which is even thicker in the case of hollow bricks. Nowadays, this type of masonry construction is made possible by dimensionally accurate brick formats.

The advantages are enormous: significant savings in the amount of mortar, a dense masonry with high thermal insulation by preventing cold bridges and faster processing due to the dimensionally accurate bricks, plus higher masonry load, low shrinkage behavior and deformation of the mortar joint. The result is a clean and homogeneous masonry with a short drying time. However, there is one thing to bear in mind: the first row of bricks, the so-called edge layer, which is placed in a mortar bed, must be absolutely plumb and level.

Collomix offers the most important tools for creating high-quality masonry using the thin-bed or adhesive method as part of its masonry range:

  • The laying aid with levelling gauges for quick laying of the edge layer (1st row of stones)
    The AQiX water metering device for the right amount of water for mixing mortar
    Proven mixing technology (manual mixers from the Xo series, automatic mixers from the Collomatic series, DLX mixer) for honey-like, lump-free thin-bed mortar
    Mortar rollers with application rollers for bricks, sand-lime bricks or aerated concrete for quick and clean mortar application

Collomix positioning aid

A high-quality contact layer is a prerequisite for the quality of a building and fulfills three central tasks that are essential for the building to be erected: the creation of straight walls through a level contact layer, insulation and protection against rising damp as well as a stable form fit with the base plate and the absorption of static forces. The Collomix laying aid ensures the creation of a level layer and therefore a clean first row of bricks. It ensures that the edge layer can be neatly leveled with the laying mortar. Two levelling gauges can be placed in the water using a laser or in the traditional way with a spirit level using adjusting screws. The mortar bed is then laid out with a laying or facing mortar and leveled using the two gauges. One of the gauges is then moved to the next section of wall, leveled out again and the next meters of mortar bed can be laid quickly. The Collomix laying aid saves valuable working time because not every brick has to be aligned again after setting.

AQiX battery-powered water metering unit for the construction site from Collomix - Measure water quantities accurately, quickly and easily, at the touch of a button.

Water dosing instrument AQiX

Depending on the type of masonry - brick, sand-lime brick or aerated concrete - different thin-bed mortars or adhesives are used. These are supplied in bags and must be mixed on site. A decisive factor here is the exact amount of water to be measured out for the powder material. With the help of the AQiX water dosing device from Collomix, the required amount of water can be set to a tenth of a liter and added at the touch of a button. This prevents the mixture from being over- or under-watered and ensures constant flowability of the adhesive.

Mixing technology

The next factor is the correct mixing technique. While the viscosity of the thin-bed mortar for facing bricks is rather thick-flowing, the adhesive mortar for sand-lime bricks must have a soft-plastic consistency due to other components. For all adhesives, however, it is crucial that the finished mixture is smooth and completely free of lumps. This is the only way to ensure professional processing. This is because lumps in the mix cause partial blockages and therefore problems when applying with a mortar roller. For high-quality mixing of the adhesive, Collomix offers a wide range of mixers with a special mixing rod for the adhesive (type DLX), depending on the type of construction project. The tried-and-tested hand mixers in the Xo-R series include single or two-speed machines for universal use as well as a cordless mixer model based on the manufacturer-independent CAS battery technology for cordless use on the construction site. For mixing with hand mixers, Collomix recommends the DLX mixer specially developed for adhesive preparation. This ensures lump-free mixing. For larger construction projects and adhesive quantities, the automatic mixer type AOX with the DLX mixing tool is used on many construction sites.

Mortar rollers for bricks, sand-lime bricks and aerated concrete

The mortar roller is used to apply the adhesive to the brick or stone row. The respective brick width must correspond to the width of the mortar roller. Once this has been set on the mortar roller and the mortar has been filled into the storage container, the mortar roller can be pulled quickly and flush over the entire length of the row of bricks like a sledge. This ensures the correct application height of the adhesive as well as the correct wetting of the brick surface. There are separate versions of mortar rollers for bricks, sand-lime bricks and aerated concrete in order to achieve the mortar patterns specified by the manufacturers. Whether it is a full-surface, capping application for filled flat bricks or an application in strips as with sand-lime bricks - a continuous, clean adhesive pattern with a constant application thickness ensures a load-bearing and closed masonry with a clean joint pattern. The use of Collomix mortar rollers speeds up wall construction considerably, which is clearly reflected in the costing. The Collomix mortar rollers are also characterized by the fact that at least two brick widths can be coated with each roller. With the sand-lime brick roller, as many as five different brick widths can be coated with one roller.

Nothing works on the construction site without a cord tensioner

Despite the laser - the good old string tensioner still has its place on the building site. Aligning the masonry horizontally and vertically is the be-all and end-all for good quality bricklaying work.

It is not only in masonry construction that "the right tool is half the work". The Collomix masonry range therefore provides masonry professionals with the most important tools for time-saving, high-quality work within the system. This ensures safety and efficiency on the construction site and also impresses customers with a high level of professionalism.