Enhancing Mechanical Properties of Pervious Concrete Using Carbon Fiber Composite Reinforcement

Cured carbon fiber composite material (CCFCM) is available from manufacturing lines; however, excess CCFCM has no reuse applications at present. Postindustrial CCFCM was mechanically refined and used as reinforcement to improve the mechanical properties of pervious concrete (PC). Four PC mixtures were included in the study, which contained 0 (control), 3, 4, and 5% CCFCM by volume. Infiltration rates of all CCFCM mixtures were above the acceptable level of 1,200  cm/h. Paired t-tests showed that all CCFCM mixtures significantly outperformed the control mixture in terms of split tensile strength by 57–84% and flexural strength by 36–65% in 28-day testing. Load-displacement curves of CCFCM mixtures indicated increases of 41–54% in toughness indices. Mass loss due to Los Angeles machine abrasion (Cantabro) ranged from 16 to 31% for CCFCM mixtures, while the control lost 50% of its original mass. Overall, within the tested range, up to 4% CCFCM addition to PC presented the optimal result across the entire experimental scope. Higher CCFCM contents may be possible if used as a replacement of aggregate rather than an additive to the mixture.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0002207
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • ©2018 American Society of Civil Engineers.
• Authors:
  • Rodin, Harry
  • Rangelov, Milena
  • Nassiri, Somayeh
  • Englund, Karl
• Publication Date: 2018-3

Language

• English

Media Info

• Media Type: Web
• Pagination: 04018012
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 30
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Carbon fibers; Composite materials; Material reinforcement; Mechanical properties; Porous pavements; Reinforced concrete; Salvage
• Uncontrolled Terms: Pervious concrete
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01657689
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jan 25 2018 9:31AM