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Keeping the economy and aesthetics in mind, traditional poured foundations have been replaced in the construction industry by such materials as small-sized concrete blocks, ALFA type hollow blocks and formwork hollow blocks.
Concrete foundation blocks are used to erect all types of walls: foundation, single-layer, retaining and basement walls. The blocks are a heavy material, however, due to their small dimensions, their installation is quick and easy. CJ BLOK® concrete blocks are produced in three different dimensions: 30x14x24; 38x12x25 and 39x14x24 cm. In addition, the blocks have no through holes, so they can be laid horizontally and vertically on any side. To ensure the required load capacity, the blocks are available in two compressive strength classes: 12.5 MPa and 25 MPa.
In recent years the formwork hollow blocks have gained popularity and are the most frequently used material for erecting monolithic foundation walls. Formwork hollow blocks can replace traditional methods of making foundations. The walls are built by pouring the hollow blocks with concrete without the use of mortar.
A very common material for the construction of foundation walls is the ALFA type hollow block, which is available in two strength classes: 12.5 MPa and 25 MPa. It is a universal hollow block used in single and multi-family and public buildings. The production of concrete blocks and ALFA hollow blocks takes place on both the Columbia and Rekers machines, which translates into packaging and the number of pieces per pallet.