Construction & Materials Best Practice for Concrete Sidewalks

Rapid deterioration of concrete sidewalks has been observed after only a few cycles of freezing and thawing. The causes for this rapid deterioration are not fully known but are believed to be caused by a combination of effects including materials, concrete mixtures, and construction practices. This project seeks to accomplish the following objectives: 1. Determine best construction practices that result in durable concrete sidewalks. These include concrete placement activities, finishing procedure and time, and curing method (moist cure, chemical cure, no cure). 2. Identify the best performing materials (concrete mixture designs) that contribute to durability. The use of deicing chemicals for sidewalk treatment in response to winter storm events is also included among the variables studied. 3. Identify the factors that contribute to decreased durability of concrete sidewalks through a combination of laboratory testing of hardened concrete (scaling resistance, petrographic analysis, air void structure analysis, and chloride content) and photographic documentation conducted at the site.

    Project

    • Status: Active
    • Funding: $180,000
    • Sponsor Organizations:

      Massachusetts Department of Transportation

      10 Park Plaza
      Boston, MA  United States  02116
    • Start Date: 20191001
    • Expected Completion Date: 20210331
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01719614
    • Record Type: Research project
    • Source Agency: Massachusetts Department of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Oct 18 2019 4:14PM