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Chipseal (also chip seal or chip and seal) is a pavement surface treatment that combines one or more layers of asphalt with one or more layers of fine aggregate. In the United States, chipseals are typically used on rural roads carrying lower traffic volumes, and the process is often referred to as asphaltic surface treatment .
Tarmacadam is a concrete road surfacing material made by combining tar and macadam (crushed stone and sand), patented by Welsh inventor Edgar Purnell Hooley in 1902. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces invented by Scottish engineer John Loudon McAdam in the early 19th century.
PA Route 28 in Sharpsburg: PA Route 8 in Pittsburgh: State Route 1006: Burchfield Road PA Route 8 (Butler St., William Flinn Hwy) in Shaler Twp Middle Road Klein Road bridge over Little Pine Creek, Indiana: Harts Run Road, Dorseyville Road, Fox Chapel Road, Guys Run Road, Locust Hill Road SR 1013 (Saxonburg Road), Indiana: PA Route 910 ...
Pennsylvania Route 168 (PA 168) is a highway in Western Pennsylvania that runs for 55 miles (89 km) from PA 18 in Frankfort Springs to PA 208 in Volant. PA 168 intersects or runs concurrently with PA 18 at several points, including in New Castle .
One can produce a tar-like substance from corn stalks by heating them in a microwave oven. This process is known as pyrolysis. Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. [1]
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Birch bark tar use as an adhesive began in the Middle Paleolithic. Neanderthals produced tar through dry distillation of birch bark as early as 200,000 years ago. [6] A 2019 study demonstrated that birch bark tar production can be a simpler, more discoverable process by directly burning birch bark under overhanging stone surfaces in open-air conditions. [7]
Buffington Township is a township in Indiana County, Pennsylvania, United States. Buffington Township split from Pine Township in 1867 and was named after Judge Joseph Buffington. The population was 1,242 at the 2020 census. [2] It includes the communities of Blaides, Croft, Dilltown, Rexis, Scott Glen, Stumpf's Mills, and Wehrum. [3]