The relative performance and cost effectiveness of different deicers and blends often remain a source of uncertainty for many practitioners, but it need not be. The primary mode of action for chemical deicers is ice melting, and this is now very well understood for the most common road deicers: the chloride salts and their blends. This presentation will provide an overview of how the common chloride salt ice melters perform as dry chemicals, brines, and blends; the effect of “exothermic” vs “endothermic” salts and how important this is. It will also cover the recently developed “mechanical rocker ice melting test” and ways to improve its accuracy, and how the ice melting performance of chloride brine blends can often be determined with high accuracy from readily available freezing point curves with little or no need of additional testing. Proficiency Level: Advanced Session Evaluation: https://www.surveymonkey.com/r/TBCBLJM
By attending this session, participants will be better able to:
• Predict the relative ice melting performance and cost effectiveness of chloride salt blends at different temperatures without the need for testing.
• Define the role that the “exothermic” and “endothermic” effect plays in ice melting performance.
• Recognize and avoid sources of error in the mechanical rocker ice melting test.
Contributor/Source
Scott Koefod-Principal Scientist
Proficiency Levels
Introductory
Focuses on a general or broad overview of the topic, awareness of basic factual recall. Limited experience of the subject matter is necessary to understand content areas.
Applied
Focuses on practical implementation of technical steps or strategies, some prior knowledge and experience of the topic is necessary.
Advanced
Mastery of basic concepts associated with an area has been obtained. Focuses on understanding nuances, advanced concepts, and intricacies with implementation within knowledge area. Strong understanding of how the concept impacts other factors or areas of operations.
Program Types
CLL
Click, Listen & Learn (CLL) are interactive educational webinars. Each program is led by top experts in the field who share new ideas, methods, and technologies in a fast-paced two-hour time frame. These programs are available free to APWA members. CLL programs are eligible for continuing education units (CEUs).
Primer
Primers are used to educate policymakers about public works roles and responsibilities in public rights of way, the impact of federal workforce development policies on the industry and workforce, and the importance of resilient infrastructure.
Public Works Radio Podcast
Public Works Radio is the official podcast of the American Public Works Association (APWA), bringing the stories behind our communities to life. This podcast shines a spotlight on the people and projects that keep our cities running—humanizing the work and the professionals who make it happen. Each episode dives into a wide range of topics designed to educate and inspire, making public works more visible to everyone.
PWX
PWX session recordings cover a wide variety of topics, including integrating modes of transportation, traffic and transit, construction management, emergency management, engineering and technology, fleet and facilities, management, parks and grounds, snow and ice control, and stormwater/flood control, as well as solid waste, roads and bridges and water/wastewater. PWX sessions are eligible for continuing education units (CEUs).
Reporter Articles
APWA Reporter articles are written by public works practitioners on subjects such as solid waste management, water resources, municipal engineering, transportation, equipment services, buildings and grounds, snow removal, and other public works-related topics.
Snow
The Snow Conference session recordings feature public works professionals sharing the latest best practices in managing winter/snow operations more successfully, taking advantage of emerging technologies, understanding and preparing for the challenges ahead, and providing better service to their communities. Snow sessions are eligible for continuing education units (CEUs).
Tech Boxes
A tech box is a PDF take-away that provides information in lists, steps, or defined areas specifically focused on trending technologies.
Virtual Program
Virtual programs are live, interactive educational programs led by top experts in the field who provide timely information or address trending topics within an area. Programs often conclude with an open forum for Q&A.