Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SCC for Underground Sprayed Concrete Application
In 2003, the challenge of delivering a wet-mix shotcrete to the underground workings of the Laronde mine, at 2,150m (7,050 ft) below surface was met through careful mix design. Sending the mix through the vertical piping system in the shaft, literally put the mix into a free-fall situation, attaining speeds of 315 km/hr over a distance of 2 km. The friction encountered during the fall, raised the temperature of the mix by 10 degrees Celsius, altering its properties. Segregation and shootability were also concerns. An SCC wet-mix shotcrete recipe was developed to overcome these extreme conditions. Between the completion of testing, and January 2006, Laronde Mine has shot more than 35,000 m3 (46,000 yds3) of the SCC wet-mix shotcrete and is currently expanding their shooting capacity.
SCC for Underground Sprayed Concrete Application
In 2003, the challenge of delivering a wet-mix shotcrete to the underground workings of the Laronde mine, at 2,150m (7,050 ft) below surface was met through careful mix design. Sending the mix through the vertical piping system in the shaft, literally put the mix into a free-fall situation, attaining speeds of 315 km/hr over a distance of 2 km. The friction encountered during the fall, raised the temperature of the mix by 10 degrees Celsius, altering its properties. Segregation and shootability were also concerns. An SCC wet-mix shotcrete recipe was developed to overcome these extreme conditions. Between the completion of testing, and January 2006, Laronde Mine has shot more than 35,000 m3 (46,000 yds3) of the SCC wet-mix shotcrete and is currently expanding their shooting capacity.
SCC for Underground Sprayed Concrete Application
Millette, Dan (Autor:in) / Lessard, Michel (Autor:in) / Vezina, Francois (Autor:in) / Tremblay, Alain (Autor:in) / Leduc, Jean-Claude (Autor:in)
10th International Conference on Shotcrete for Underground Support ; 2006 ; Whistler, British Columbia, Canada
Shotcrete for Underground Support X ; 307-315
25.08.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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