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pitch |
Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.04 sec. |
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pitch  The slope of a roof, sidewalk, or other surface. The Americans with Disabilities Act has specific requirements for the pitch of access ramps leading to building entrances. Example: Figure A has a 1:12 pitch because the slope rises 1 foot for every 12 feet of distance. Figure B has a 1:6 pitch. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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EHP regrets the incorrect and unintentional inference in "Paving Paradise: The Peril of Impervious Surfaces" [Environ Health Perspect 113:A456-A462 (2005)] that coal tar pitch is used in the actual hot-mix asphalt used to pave roads. Around 1910 the first type of antioxidants were discovered, mainly naturally existing materials like creosote, asphalt and coal tar pitch. Coal tar pitch is instead used in many sealcoat formulations used atop asphalt pavement. |
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