Material Reuse

Samy - I can help you with your question #1 regarding salvaged material contributing towards MRc5: Construction and Demolition Waste Management. Please note that the quoted information regarding Option 1 and 2 I am providing is readily available in the Step-by-Step Guidance of the LEED Reference Guide for Building Design and Construction. I would ask that LEEDusers please do their homework by checking available resources like the Reference Guide, Addenda Database (https://www.usgbc.org/leed-interpretations) and Credit Library (https://www.usgbc.org/credits) BEFORE posting to LEEDuser.

Since you are using Option 1 (Diversion) of MRc5, the answer to your specific question regarding chipped stone is yes - "diverted waste includes all recycled, salvaged, reused, and donated materials." (Note: The answer for your scenario is no for Option 2 (Reduction of Total Waste Material) - "materials reused on site do not count as waste.")

Also, I wanted to note that it appears to me that you are actually recycling this brick and concrete material vs. reusing it. Taking a material and modifying it via a process to make a new product is recycling, which is what taking brick and concrete and processing them into a new material (stone chips) seems to be. As a LEEDuser Basic Member, I don't think you can see the LEEDuser's viewpoint section of each credit but there is a good overview in https://leeduser.buildinggreen.com/credit/NC-2009/MRc3:

"It’s not unusual to have some confusion about the difference between “reused” and “recycled”—often the terms are (incorrectly) used interchangeably—but there is a distinct difference, especially for the purposes of LEED.

Recycled refers to anything that contains recycled materials as a result of the manufacturing process—carpet that contains recycled material, for example, could be made from post-consumer recycled plastic bottles.

Reused material is something that has been reused or repurposed from another location or a different role—like antique doors salvaged from an old church, raised floor pedestals saved from one office project and sold to another, or office partitions relocated from a previous office to a new one."

Please post your second question about how to enter this material into the BPDO calculator in the forum related to that credit (BPDO- Sourcing of Raw Materials) - https://leeduser.buildinggreen.com/credit/NC-v4/MRc3. 

Good morning - I just finished editing my comment from yesterday above so I hope it helps you in regards to the LEED definitions for material reuse vs. recycled content materials.

Please note that this is an MRc5 forum so please post your question about MRc3 on that forum - https://leeduser.buildinggreen.com/credit/NC-v4/MRc3. (I'll just note that in LEED 2009 when we recycled a material like concrete and crushed it to use in lieu of a new base or aggregrate material we had to obtain a price for what the new base or aggregate material would have cost to apply it to another MR credit.)

I think you might have missed my answer from yesterday regarding Option 1 - which is yes. You should have a weight or volume for this chipped stone and can use conversion factors to move it one way or the other if needed. See Table 2 at http://www.usgbc.org/node/2695214?return=/credits/mid-rise/v4. 

Please note that your statement about salvaged and reused for Option 2 is not entirely correct as there is an important distinction between on-site and off-site salvaged materials. Materials reused on site for Option 2 do not count as waste. (Only waste materials donated, sent to reuse facilities, or reused on other projects are waste for that option.)