Smart & Environmentally Friendly Winter Maintenance Solutions for Safe Winter Mobility

PI: Somayeh Nassiri (WSU), snassiri@wsu.edu, ORCID: 0000-0001-5367-2167

Co PIs: none

AMOUNT & MATCH: $45,000 from PacTrans; $45,000 Match

PERFORMANCE PERIOD: 8/16/2018 – 8/15/2020

STATUS: Active

CATEGORIES: Winter Maintenance, Safety

RESEARCH PROJECT HOT SHEET:

UTC PROJECT DOCUMENTATION:

FINAL PROJECT REPORT: will be available once completed

PROJECT DATA: will be available once completed

DESCRIPTION: The primary objective of this study is the investigation of different types of fibers and fiber dosages on conductivity properties of paving concrete, and ultimately evaluation of deicing efficiency. To do so, an experimental matrix with seven concrete mixtures was developed. A conventional paving mixture was selected as a Control mixture. The remaining six mixtures were designed with carbon and steel fibers at 0.25 %, 0.50% and 0.75% volumetric dosages.

Concrete specimens will be cured for 28 days in a fog room after which they will be tested for compressive strength, flexural strength, and toughness index. To assess the electrical properties, electrical resistivity will be measured on 14-, 28-, 49-, 70-, and 90-days age. Additionally, a series of specimens will be cast with electrodes and connected to DC power supply to assess the current flow. This comprehensive experimental framework will enable to determine optimum percentages of carbon and steel fibers which will reduce the electrical resistivity of concrete significantly. As a result, the concrete will gain enough electrical conductivity that will enable current flow and heat development necessary for the intended purpose of pavement deicing.

DELIVERABLE DUE DATE DATE RECEIVED
Research Project Progress Report #1 4/10/2019
Research Project Progress Report #2 10/10/2019
Research Project Progress Report #3 4/10/2020
No Cost Extension Request 6/15/2020
Draft Report 6/15/2020
Final Project Report 8/15/2020