using salvaged concrete on a new project

Log Out | Topics | Search Moderators | Register | Edit Profile

Author Message Robin E. Snyder Senior Member Username: robin Post Number: 247 Registered: 08-2004 Posted on Thursday, March 26, 2009 - 05:31 pm:    Has anyone had experience with using salvaged concrete on a new job? IE, concrete taken from another project, or a recycling yard, and using it as aggregate or a base course on new construction? Steven Bruneel, AIA, CSI-CDT, LEED-AP Senior Member Username: redseca2 Post Number: 167 Registered: 12-2006 Posted on Thursday, March 26, 2009 - 05:53 pm:    For a large hospital project seeking LEED status, we have demo'd existing cast-in-place concrete buildings and broken the remains on site for use in the mass grading for the new buildings. But we have not tried to use it as part of a concrete mix design as you suggest. Mark Gilligan SE, CSI Senior Member Username: mark_gilligan Post Number: 151 Registered: 10-2007 Posted on Thursday, March 26, 2009 - 06:09 pm:    There was a situation in San Francisco where a concrete supplier used, contrary to the project requirements, recyled concrete on a bridge. There was some concern that the resulting concrete did not conform to the specified properties. I woud expect that in some circumstances that recyled aggregate would be acceptable. The project structural engineer should research this. Check this link http://www.cement.org/tech/cct_aggregates_recycled.asp. Whether this is feasible will depend a lot on the size of the projct and the facilities of the concrete supplier. Lynn Javoroski CSI CCS LEEDŽ AP SCIP Affiliate Senior Member Username: lynn_javoroski Post Number: 858 Registered: 07-2002 Posted on Friday, March 27, 2009 - 12:30 pm:    When Brewer Stadium was built a couple of years ago, they recycled concrete as a base. You might contact Wastecap Wisconsin for details; that's how I learned what had been done. Wastecap Wisconsin, 2647 N Stowell Ave, Milwaukee, WI 53211, (414) 961-1100. There are other Wastecaps in other states that might be able to give you additional information.