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Asbestos cement competed with aluminum alloy, available in large quantities after WWII, and the reemergence of wood clapboard and vinyl siding in the mid to late 20th century. Asbestos cement is usually formed into flat or corrugated sheets or into pipes, but can be molded into any shape that can be formed using wet cement.
Transite originated as a brand that Johns Manville, an American company, created in 1929 for a line of asbestos-cement products, including boards and pipes. [1] In time it became a generic term for other companies' similar asbestos-cement products, and later an even more generic term for a hard, fireproof composite material , fibre cement ...
Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, -toss) [1] is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) [2] being composed of many microscopic "fibrils" that can be released into ...
During the 1980s and again in the 1990s it was suggested at times that the process of making asbestos cement could "neutralize" the asbestos, either via chemical processes or by causing cement to attach to the fibers and changing their physical size; subsequent studies showed that this was untrue, and that decades-old asbestos cement, when ...
Until the legal prohibition of asbestos in 1996, the company produced materials including asbestos, and was the biggest consumer of asbestos in the wider region. Between 1996 and 2016, inhabitants in the area surrounding the factory comprised a majority of cases of asbestosis , pleural effusion , mesothelioma in the country, as well as an ...
Everest Industries Limited was founded in 1934 under the name of Asbestos Cement Ltd. [7] in Maharashtra. In 1983, the company changed its name to Everest Building Product Ltd., in the same year the company went public on the Bombay Stock Exchange. [8] In 1990 the company was renamed Eternit Everest Ltd. It got its current name in 2003.
Asbestos shingles are roof or wall shingles made with asbestos cement board. They often resemble slate shingles and were mass-produced during the 20th century as these were more resilient to weathering than traditional slate shingles for the reason that slate is very soft and prone to weathering.
Occupational health concerns and the protection of workers in the fibre-cement factories have finally led to the progressive elimination of asbestos from these products. [2] For health reasons, it is recommended that existing fibre-cement products that are in good condition are left undisturbed and possibly encapsulated, to prevent fibre release.