Xella Italia - Блоки Ytong a U

Ytong Blocchi a U blocks work like disposable formwork, they allow horizontal reinforcement for spans greater than 250 cm, when it is not possible to use a prefabricated lintel.‎ Available from 20 to 40 cm thick, they allow homogeneous masonry to be obtained, preparatory to correct plastering.‎ For greater thicknesses, it is possible to couple several rows of U-shaped blocks, taking care to bond with mortar-bond between the two elements.‎ The U-shaped blocks must rest laterally for a minimum of 20 cm and 25 cm on each side for net spans of openings respectively smaller and larger than 200 cm.‎ The cross-section of the reinforced concrete kerb (height x thickness) is 19x10 cm and 19x15 cm for blocks 20 cm and 24-30-36-40 cm thick, respectively.‎ The U-shaped blocks must be placed side by side lengthwise until they cover the span of the opening and propped appropriately: then reinforcement and concrete are inserted in the formwork thus obtained according to the instructions of the designer calculating the work in accordance with the regulations in force.‎ The shoring is removed once the concrete has cured.‎ U-shaped formwork blocks for stiffening masonry (if required by the static design) or for making lintels for openings in walls at least 20 cm thick.‎ CE marked product in compliance with the harmonised standard UNI EN 771-4, Group 1 element according to EN 1996-1-1.‎ More than 100 years ago, in 1923, architect and researcher Dr.‎ Axel Eriksson invented "vapor-vulcanized gas concrete" in Sweden - now known as autoclaved aerated concrete.‎ Together with Carl August Carlén, an entrepreneur, they started the first production in 1929 in Yxhult, southern Sweden, at a time of great scarcity of raw materials and stricter energy laws.‎ A competitive advantage on the market The sustainability of buildings is increasingly at the center of construction trends, with modern sustainability policies undertaken by international institutions and organizations that have favored the increase of this trend.‎ The choice of materials and construction technologies are fundamental to obtaining homes that consume less and consequently have a lower environmental impact.‎ A sustainable home can cost on average 8% more than a normal home, but this difference is compensated by numerous advantages in the long term: a healthier and more comfortable environment, significant economic savings compared to bills and a higher value of the building; It is estimated, in fact, that the value of a green property can increase from 2 to 10% with sales times halved from 8 to 4 months.‎