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Sharp sand, also known as grit sand or river sand and as builders' sand, concrete sand, or ASTM C33 when medium or coarse grain, is a gritty sand used in concrete and potting soil mixes or to loosen clay soil [1] as well as for building projects. It is not cleaned or smoothed to the extent recreational play sand is. It is useful for drainage. [2]
Grus is an accumulation of angular, coarse-grained fragments (particles of sand and gravel) resulting from the granular disintegration by the processes of chemical and mechanical weathering of crystalline rocks (most notably granitoids) generally in an arid or semiarid region. [1] Grus sand, when cemented into a sandstone, will form an arkose.
Thornton Quarry, just south of Chicago, Illinois. One of the largest aggregate quarries in the world, 1.5 miles (2.4 km) long, 0.5 miles wide, and up to 450 feet deep, site of a Silurian reef. Quarried since 1836. The quarry also acts as an emergency flood control reservoir as part of Chicago Deep Tunnel project.
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Home prices in the Chicago area climbed 9.6% during August compared with the same time last year, new numbers show. The median sales price in the metro area was $339,000, a $29,000 jump from ...
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Uptown is one of Chicago's 77 community areas.Uptown's boundaries are Foster Avenue to the north; Lake Michigan to the east; Montrose Avenue (Ravenswood Avenue to Clark Street), and Irving Park Road (Clark Street to Lake Michigan) to the south; Ravenswood Avenue (Foster Avenue to Montrose Avenue), and Clark Street (Montrose Avenue to Irving Park Road) to the west. [2]