Concrete block masonry - Installation with mortar, for gluing, corners, jambs and architrave - Mecos s.r.l.

Another type of blocks for building walls, load-bearing or not, are concrete blocks, which can be:

- normal concrete blocks;

- expanded clay blocks;

- cellular concrete blocks.

blocchetto di calcestruzzo normale blocchetto di argilla espansa blocchetto di calcestruzzo cellulare

INSTALLATION WITH MORTAR

The installation of the blocks with mortar takes place by forming mortar joints with a thickness of approximately 1 cm, generally arranged in two bands spaced (slightly) apart in the center of the block, thus interrupting the continuity of the mortar bed and a possible passage of humidity from the outside.

An important precaution to make the wall more solid is to insert, every 2 or 3 courses, in the same thickness of the joints either a metal reinforcement of reduced diameter or a flat electro-welded truss. This allows for greater continuity of the wall element and absorbs any shrinkage of the material. This precaution is necessary if sister joints are being used, while the expansion joints which will have the task of absorbing temperature variations must be created with particular care.

example of creating an expansion joint in concrete block masonry

insertion of the electro-welded truss for the execution of the sister joints

insertion of the electro-welded truss in single-layer masonry (a) and hollow-case masonry (b)

positioning of the mortar for the installation of the concrete blocks

INSTALLATION BY GLUEING

This type of installation is carried out by spreading, with a notched trowel, a special glue (usually sold with the blocks themselves) in each course of the masonry. Furthermore, the blocks of the subsequent course must be positioned in such a way that the thickness of the joints is approximately 3 mm.

EXECUTION METHODS OF CONCRETE BLOCK MASONRY

CORNERS OF CONCRETE BLOCK WALLS

Normally the corners of the walls are arranged at right angles. However, there may be cases in which it is necessary to create different angles, and in such cases special pieces are used or the adoption of specific brick arrangement techniques. In the case of exposed blocks it is important to respect the verticality of the grooves of the overlapping courses.

formazione di angoli in murature di blocchi di argilla espansa

INTERSECTIONS BETWEEN CONCRETE BLOCK MASONRY

In this case it is advisable to install anchoring irons, thus improving the connection between the walls.

intersezione tra murature di blocchi argilla espansa

JAMBS AND LINTEL OF THE OPENINGS OF THE CONCRETE BLOCK WALLS

The jambs are made with blocks of suitable shapes, allowing the same solutions as brick blocks.

The lintels are formed using U-shaped blocks containing reinforced concrete ribs, or alternatively pre-stressed beams in expanded clay conglomerate, which are suitable for various types of masonry.