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Asbestos cement, genericized as fibro, fibrolite (short for "fibrous (or fibre) cement sheet"; but different from the natural mineral fibrolite), or AC sheet, is a composite building material consisting of cement and asbestos fibres pressed into thin rigid sheets and other shapes.
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 ...
Starting from the seventies, asbestos use became progressively prohibited; however, in several countries, it is still used for building materials. Safer fibre alternatives, based on e.g. cellulose fibers were developed in the eighties and applied to secure the widely known strength of fibre cement.
The concrete was used from the 1950s until the mid-1990s, with the Institute of Structural Engineers saying it will only need to be replaced if it is considered to be of poor condition and at high ...
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 boards, typically used in wall construction. It can also be found in insulation, siding, roof gutters, and cement wallboard. The more prevalent transite found in wall ...
The asbestos fibres are intimately bound to the cement matrix and were considered to be immobilized in the cement and therefore less prone to be released in the environment, suspended in the air, and inhaled in the lung than in other materials or applications, such as thermal insulation or flocking, in which loose asbestos fibres were used ...
It is the most common type of asbestos used in the world, used in car parts such as aftermarket automotive brakes and linings and other vehicle friction products and gaskets. It’s been banned in ...
The U.S. Environmental Protection Agency on Monday finalized a rule that would ban using and importing cancer-causing asbestos, a material still used in some vehicles and in some industrial ...