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Like other concrete formwork, the forms are filled with concrete in 1-foot to 4-foot high "lifts" to manage the concrete pressure and reduce the risk of blowouts. After the concrete has cured, the forms are left in place permanently to provide a variety of benefits, depending on materials used: Thermal insulation; Soundproofing
1901 – Symons founded [15] 1924 – Dayton Sure Grip & Shore founded [10] 1982 – Superior Concrete Accessories acquired – company name changed to Dayton Superior Corporation [12] 1995 – Acquired Dur-O-Wal, Inc. (masonry) [10] 1996 – Acquired Steel Structures, Inc. (paving) [18] 1996 – IPO – Shares traded on the New York Stock Exchange
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Knox County, Maine, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map. [1]
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The Ellsworth Dam is located between two bluffs which flank Maine's Union River, and rise to a height of more than 100 feet (30 m). [2] The dam consists of a series of buttresses, each set on a schist bedrock ledge, three feet thick, and spaced about 15 feet (4.6 m) apart, which provide support for two large slabs of steel-reinforced concrete that span the river between the bluffs.
Landforms of York County, Maine (3 C, 7 P) This page was last edited on 4 July 2014, at 16:54 (UTC). Text is available under the Creative Commons ...
Incorporated as a city on February 22, 1869, [2] Auburn in 1917 would be the first city in the state to adopt a council-manager form of government. [ 6 ] Farms supplied grain and produce, but with construction of the bridge across the river to Lewiston in 1823, and especially after arrival of the Atlantic and St. Lawrence Railroad from Portland ...