| Overall Rating | Reporter - expired |
|---|---|
| Overall Score | |
| Liaison | Deborah Steinberg |
| Submission Date | Aug. 1, 2011 |
| Executive Letter | Download |
Carnegie Mellon University
Tier2-4: Snow and Ice Removal
| Status | Score | Responsible Party |
|---|---|---|
|
Reporter |
Donald
Coffelt Associate Vice President for Facilities Management and Campus Services FMS Operations - Management and CEE: Civil & Environmental Engineering |
Has the institution implemented technologies or strategies to reduce the environmental impacts of snow and ice removal?:
A brief description of the snow and ice removal program, policy, or practice:
For campus walkways we use primarily a granular ice melter that is a combination of Sodium Chloride + Postassium Chloride and sometimes it may have Magnesium Chloride added or be coated with Magnesium Acetate.
We use liquid calcium in small amounts to treat masonary surfaces like steps - ramps- etc. This product functions as an anti-bonding agent, preventing water from creating a good "freeze attachment" to the masonary surface.
Roadway Rock Salt is generally pure Sodium Chloride mined and then treated with an anti-caking solution to prevent the salt crystals from binding up into clumps thus preventing their spreader distribution. We use bulk roadway rock salt on roads and parking lot surfaces at the university.
The ice melt products have a quicker melt response time and are effective at low temperatures and is milder to plant growth than straight Sodium Chloride, however they are much more expensive. We use ice melter products on campus pedestrian access areas (walks, steps, ramps, etc.)
The Randy Pausch Memorial Bridge and the Warner Hall Plaza are heated to avoid salt use and to prevent the breakdown of the concrete from the salt.
The website URL where information about the program, policy, or practice is available:
Data source(s) and notes about the submission:
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.