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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. [4] It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk.
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 ...
To increase the volume of creosote available for wood treatment, Southern Pacific used creosote extenders in the site's treatment process. [18] Concerns arose when it was revealed [17] that some of these extenders were sourced from what are now Houston-area Superfund sites––including Brio Refining, Dixie Oil Processors, and Motco––bringing the extender's safety and toxicity into ...
Ashland County Auditor Cindy Funk talked about concerns dealing with employees and the public who are in building when work is being done.
Two sets of Houston homeowners have been left high and dry after a municipal water tank exploded behind their homes, unleashing thousands of gallons of water that tore down an eight-foot fence and ...
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.
The ban of chrysotile asbestos, the only form of asbestos currently used in or imported to the United States, comes after the EPA under the previous Trump administration delayed banning the substance.
In construction, asbestos abatement is a set of procedures designed to control the release of asbestos fibers from asbestos-containing materials. [1] Asbestos abatement is utilized during general construction in areas containing asbestos materials, particularly when those materials are being removed, encapsulated, or repaired.