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Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...
Gypsum materials consist of calcium sulfate dihydrate (CaSO 4 ·2H 2 O). Sulfate-reducing bacteria convert sulfates to toxic hydrogen sulphide gas; they are killed by exposure to air, but the moist, airless, carbon-containing environment in a landfill is a good habitat for them.
Thermal paste consists of a polymerizable liquid matrix and large volume fractions of electrically insulating, but thermally conductive filler. Typical matrix materials are epoxies, silicones (silicone grease), urethanes, and acrylates; solvent-based systems, hot-melt adhesives, and pressure-sensitive adhesive tapes are also available.
In Canada and the United States the laths were generally sawn, but in the United Kingdom and its colonies, riven or split hardwood laths of random lengths and sizes were often used. Early American examples featured split beam construction, as did examples put up in rural areas of the U.S. and Canada well into the second half of the 19th century.
The predicted overall food price increase of between 3% and 5% in 2021 was the highest "ever predicted by an annual food price report". [19] It meant that an average family in Canada would pay $695 more for food in 2021 than in 2020. [19]
From 2003 to 2018, Canada saw an increase in home and property prices of up to 337% in some cities. [2] In 2016, the OECD warned that Canada's financial stability was at risk due to elevated housing prices, investment and household debt. [3] By 2018, home-owning costs were above 1990 levels when Canada saw its last housing bubble burst. [4]
The temperature of the deep ocean drops gradually with depth. As saline water does not freeze until it reaches −2.3 °C (27.9 °F) (colder as depth and pressure increase) the temperature well below the surface is usually not far from zero degrees. [2] The thermocline varies in depth.
The bread price-fixing scandal in Canada refers to a group of competing bread producers, retailers and supermarket chains reached a secret agreement among themselves to artificially inflate the price of bread at the wholesale and retail levels from late 2001 to 2015 [1] (some sources stated that the price fixing continued into 2017 [2]).