"cold in-place recycling" aka "asphalt milling" aka "cold regeneration"

Joyce Kelly

Architect - Cx Provider - Building Performance Specialist

GLHN Architects & Engineers

LEEDuser Premium Member

25 thumbs up

Project location :

United States

July 10, 2024

This could support this credit and possibly others in the MR and SS categories. Has anyone pursued this within a LEED project?
Our Civil Engineer describes it this way: "There is a process generally called cold regeneration where 100% asphalt milling used as aggregate to make new paving material and you put in right back down. This process uses water-based emulsifier (cleans oil off aggregate), cement, and water! Essentially product is very dense concrete pavement with no VOC, Ozone, or heat island impacts (light grey color)."

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Dave Hubka

Practice Leader - Sustainability

EUA

LEEDuser Expert

510 thumbs up

Wed, 07/10/2024 - 18:52

i have not done this, but i have crushed up existing concrete onsite and reused for the project pursuing LEED. in this instance GBCI required me to claim this within the Sourcing of Raw Materials (SRM) credit. They did not allow me to also count this as waste diversion...although i did try to also claim as waste diversion within the LEED application :) Within the SRM credit, the Reference Guide states "components that are retained either in their original function or in a new role are eligible for this credit". This is a synergistic strategy that contributes to multiple environmental positives, anyone else find a path to get a little more credit for such strategies? great post Joyce!