|Thickness||75-200mm per 25mm interval.|
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Autoclaved Aerated Lightweight Concrete (AAC) Panels – though largely new to India, is not a new building material. Developed in Sweden in the 1920s in response to increasing demands on timber supplies ACC is a lightweight manufactured building stone. Comprised of all natural raw materials viz., cement, Quick lime, and Silica Sand. AAC is used in a wide range of commercial, industrial, and residential applications and has been in use in Europe for over 70 years, the Middle East for the past 40 years, and South America and Australia for approximately 20 years.
According to one manufacturer, AAC now accounts for over 40% of all construction in the United Kingdom and more than 60% of construction in Germany AAC Product Types AAC, unlike traditional concrete masonry units (“CMU”), is a solid panel /material system with integrated insulative and structural components, and is available in a variety of products that can be used in both load and non-load-bearing applications. Complete load bearing applications, however, are limited to low-rise construction, though cladding and large panels are available to take advantage of AAC’s insulative, fire proofing, and other benefits on mid- and high-rise projects. Additionally, the large wall, floor, and roof panels, measuring up to 10 feet long, 2 feet wide, and in various thicknesses, are also used in load-bearing capacities and are common in commercial and industrial applications. AAC Panels, also called “units” are stacked using thin-set mortar, as opposed to the traditional cement-based mortar used in CMU construction.
Due to AAC’s design flexibility and combined structural and insulation components, an entire structure can be built using the one material. Exterior surfaces can be finished with stucco, traditional veneers or siding, while interior walls can be plastered, painted, or left unfinished, in addition to traditional sheetrock finishes.