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विवरण
English: Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification.
  • Fly ash is typically finer than portland cement and lime. Fly ash consists of silt-sized particles which are generally spherical, typically ranging in size between 10 and 100 micron (see Figure).
  • These small glass spheres improve the fluidity and workability of fresh concrete.
  • Fineness is one of the important properties contributing to the pozzolanic reactivity of fly ash.
Français : Les cendres volantes sont généralement plus fines que le ciment portland ou la chaux. Une grande partie des particules qui composent ces cendres sont de la taille de celle d'un limon argileux, mais généralement sphérique, mesurant de 10 à 100 microns, incluant de petites sphères qui améliorent la fluidité et la maniabilité du béton frais auquel on a ajouté ces cendres. La petite taille de ces particules expliquent certaines de leurs propriétés qui contribuent à la réactivité pouzzolanique des cendres volantes
दिनांक
स्रोत http://www.fhwa.dot.gov/PAVEMENT/recycling/fach01.cfm
लेखक United States Department of Transportation - Federal Highway Administration
अनुमति
(इस चित्र का पुनः उपयोग करना)
US government: United States Department of Transportation - Federal Highway Administration

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वर्तमान23:35, 23 मार्च 200923:35, 23 मार्च 2009 के संस्करण का थंबनेल संस्करण347 × 274 (22 KB)Shinkolobwe{{Information |Description={{en|1=Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification. Fly ash is typically finer than portland cement and lime. Fly ash consists of silt-sized particles which are gener

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