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Title: Investigation of the use of fly-ash based autoclaved cellular concrete blocks in coal mines for air duct work. Final report, January 25, 1993--December 31, 1994

Coal mines are required to provide ventilation to occupied portions of underground mines. Concrete block is used in this process to construct air duct walls. However, normal concrete block is heavy and not easy to work with and eventually fails dramatically after being loaded due to mine ceiling convergence and/or floor heave. Autoclaved cellular concrete block made from (70{plus_minus}%) coal fly ash is lightweight and less rigid when loaded. It is lighter and easier to use than regular concrete block for underground mine applications. It has also been used in surface construction around the world for over 40 years. Ohio Edison along with eight other electric utility companies, the Electric Power Research Institute (EPRI), and North American Cellular Concrete constructed a mobile demonstration plant to produce autoclaved cellular concrete block from utility fly ash. To apply this research in Ohio, Ohio Edison also worked with the Ohio Coal Development Office and CONSOL Inc. to produce autoclaved cellular concrete block not only from coal ash but also from LIMB ash, SNRB ash, and PFBC ash from various clean coal technology projects sponsored by the Ohio Coal Development Office. The purpose of this project was to demonstrate the potential for beneficial usemore » of fly ash and clean coal technology by-products in the production of lightweight block.« less
Authors:
 [1]
  1. Ohio Edison Co., Akron, OH (United States)
Publication Date:
OSTI Identifier:
110230
Report Number(s):
OCDO--96000306
ON: TI96000306
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 19 Jun 1995
Research Org:
Ohio Coal Development Office, Columbus, OH (United States)
Sponsoring Org:
Ohio State Government, Columbus, OH (United States)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FLY ASH; WASTE PRODUCT UTILIZATION; ASHES; BUILDING MATERIALS; COAL MINES; COAL; COMBUSTION PRODUCTS; UNDERGROUND MINING; VENTILATION SYSTEMS; CONCRETES; DEMONSTRATION PROGRAMS; PROGRESS REPORT