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Does anyone have experience with the use of chemical demolition agents 1

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VoyageofDiscovery

Structural
Apr 7, 2002
614
CA
I am rehabilitating a steel bridge and the concrete end diaphragm has embedded steel bracing utilized during original erection. I am redecking the bridge and reconfiguring the abutment/diaphragm. I need to remove and replace/reconfigure the concrete of the end diaphragm without damaging the steel bracing.

Does anyone have experience with the use of soundless chemical demolition agents (SCDAs)?

VOD
 
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Try Special Breaks at " They specialize in this work. You may be able to do this with 35 lb. chipping guns or why not simply install new bracing before removing the existing?
 
I seemtop haverun across ads for something called Bristar I believe in years past - a chemical agent that causes concrete to expand and crack.

Mike McCann
MMC Engineering
 
I seem to remember running across ads for something called Bristar I believe in years past in the "Civil Engineering" magazine - a chemical agent that causes concrete to expand and crack. It is slow acting, not exposive.

Mike McCann
MMC Engineering
 
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