XELLA offers SILKA calcium silicate blocks for efficient solutions backed up by sound advice. Innovative calcium silicate block products are available in various dimensions for a maximum of useful space and optimized costs through precise, level and quick construction. In addition, SILKA offers timely delivery of a construction material of optimum quality in line with the customer’s budget plus expert advice
XELLA supplies numerous products in a whole variety of sizes and formats under the brand name SILKA. Our most important and best-selling building materials are briefly outlined below. Not all materials are available in all countries, as construction practices differ from one country to the next. Visit the XELLA website for your country to find out which materials are available in your country. The most comprehensive product presentation can be found on the website for our domestic market Germany at www.xella.de.
Calcium-silicate bricks
Calcium-silicate bricks are made from lime, sand and water. Due to their high bulk density, these bricks are real soundproofing bricks, even when used in thin walls. Precise block dimensions and plane surfaces greatly facilitate the brick-laying work. Slender walls of solid calcium-silicate bricks can support extremely high loads. Due to the bricks' high mechanical strength, each calcium silicate block can bear between 40 and 100 tonnes. Virtually no other building material can be used to produce slender, heavy-duty walls so cost-efficiently. Moreover, highly insulated external walls of calcium silicate bricks ensure a constant pleasant atmosphere in which to live. XELLA is the world's leading manufacturer of calcium silicate bricks in a whole variety of sizes and formats for all manner of load-bearing and non-load-bearing walls.
Calcium-silicate building boards
Building boards of calcium silicate give walls high intrinsic stability from the very first moment. The boards' small wall thickness of 7 cm or 10 cm creates additional space for living or other purposes. The boards with tongue-and-groove system are laid in a thin mortar bed. Plane wall surfaces permit application of thin plaster layers. Tiles can be affixed directly to the wall surface on a thin mortar bed. Calcium-silicate building boards can be used for internal and external walls, and it goes without saying that these building boards provide the same soundproofing effect as calcium silicate bricks.
KS-Quadro
KS-Quadro is an octametric masonry system (12.5 cm) with many economic advantages, for instance by speeding up the building work and increasing the useful area available for living and other purposes by between 5% and 7% due to the slender, extremely strong walls (compression strength 20 N/mm_, bulk density 2.0 kg/dm_). The work process is greatly facilitated by the KS-Quadro laying technique and tools optimally adapted to the material. This permits flexibility in assigning jobs on the building site and allows walls to be erected by just one person. KS-Quadro and the use of thin-bed mortar produce absolutely plane and perfectly aligned walls which are outstandingly suitable for application of thin plaster layers. Application of such thin plaster layers leads to considerable savings as compared with conventional indoor plaster renderings and reduces the level of moisture in the building. It dries more rapidly and can be wallpapered after only two days.
Calcium-silicate U-blocks
U-blocks of calcium silicate can be used for a whole variety of purposes and particularly for sloping roofs with jamb wall. They ideally round off the range of calcium silicate building systems. They are also economical to use, as costly formwork and grouting of cross joints in coated masonry are no longer required.
Flat calcium silicate lintels
Our lintels are the ideal, logical and time-saving complement for openings in walls built with calcium silicate systems. They ensure that the vertical loads applied by masonry and/or reinforced concrete floors resting on the walls and openings are reliably diverted into the load-bearing walls. Flat calcium silicate lintels take over a load-bearing function in internal walls and in the internal masonry layer of double-layer external walls.
KS-PLUS
Through the production of wall building sets for specific projects directly in the calcium silicate blocks factory, the KS-PLUS system permits planning freedom without being bound by grid dimensions. The use of KS-PLUS creates up to 7% more space for living and other purposes thanks to slender KS-PLUS wall structures capable of bearing high loads. Reliable execution of the work is ensured by laying diagrams, the supply of complete wall building sets and on-site instruction by our staff if required. All the parts supplied are also used for building. There is no need to saw or cut to size on site. High dimensional accuracy means that plane walls can easily be produced with high quality. Thin plaster layers can be applied to these walls, thus significantly reducing the amount of moisture in the building. Advantageous working-time values reduce labour costs by up to 50% as compared with conventional masonry work. Up to 0.625 m_ of masonry are moved in one stroke. The building work visibly proceeds more rapidly, resulting in shorter overall building times and correspondingly shorter financing periods.
