2001811 · The impacts of quarrying of the gypsum deposits on the environment at Maqna, Tabuk, were evaluated by intensive field studies including in situ testing, mapping and sampling of gypsum and well water. Field and laboratory tests were made to determine the engineering properties including tensile and compressive strengths, unit weight, …
view more2020131 · US Gypsum mine expansion and modernisation project is estimated to cost $110m. (Credit: Pixabay/Khusen Rustamov) The Bureau of Land Management (BLM), an agency within the US Department of the Interior, has given approval for the modernisation and expansion of the US Gypsum (USG) mine in southwestern Imperial County in …
view more201111 · Download Citation | Gypsum: Properties, production and applications | Gypsum is a very soft mineral composed of calcium sulfate dihydrate and often occurs in nature as flattened and often twinned ...
view more2021410 · The retention pond that held 480-million gallons of wastewater at Piney Point is actually a gypsum stack. A giant dumpster meant to hold waste from phosphate mining.
view more1 · Environmental Impact: Mining and energy-intensive operations are required in the manufacturing of gypsum, which is the main ingredient in Rhino Board. Even though gypsum waste is recycled, consumers looking for environmentally friendly building materials should take the production process’s effects on the environment into account.
view more199611 · Publisher Summary This chapter focuses on the production and the use of by-product gypsum in the construction industry. There are two groups of gypsum by-products that have been identified: chemical gypsum and desulphogypsum. The first by-product is produced by chemical processing and the second originates from the flue gas …
view more2015513 · Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, …
view more201979 · Mining continues to be a dangerous activity, whether large-scale industrial mining or small-scale artisanal mining. Not only are there accidents, but exposure to dust and toxins, along with stress from the working environment or managerial pressures, ...
view more202313 · This paper monitors and analyzes the stability of the gypsum mine goaf, takes the ecological problems of this typical area in the Duodao district of Jingmen city as the research object, studies the planning theory and analysis methods suitable for this coal mine goaf, and draws the following conclusions: 1.
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