Concrete Surface Topography Due to Freeze-Thaw Exposure and Abrasive Blasting

This study investigated the topography of plain concrete during freeze-thaw exposure and following abrasive blasting. The independent variables included water-cementitious material ratio (0.42, 0.50, 0.56), the number of freeze-thaw cycles (100, 200, 300), and the blasting method (dry ice, sand). Using the 3-Dimensional surface roughness as the response parameter, the analysis of variance (ANOVA) results indicated that the number of freeze-thaw cycles is most influential in governing the measured roughness due to both freeze-thawing and abrasive blasting. The statistical data indicate that the roughnesses created by the blasting methods are not significantly different, which suggests that both dry ice and sand produced equivalent surface topography. However, qualitative examinations revealed that sand blasting generated a relatively uniform surface, while dry ice blasting created localized damage in the form of pitting. This effect may stem from differences in the flow behavior and size of the particles prior to impact with the substrate.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0001022
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • Copyright © 2013 American Society of Civil Engineers.
• Authors:
  • Millman, Lauren R
  • Giancaspro, James W
• Publication Date: 2015-1

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 27
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Analysis of variance; Blast cleaning; Concrete structures; Freeze thaw durability; Pitting; Roughness; Texture; Topography
• Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01504381
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jan 24 2014 2:29PM