Field evaluations of the patch materials for partial-depth repairs

Dar Chen Hao, Moon Won, Qisen Zhang, Tom Scullion

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Spalls and wide cracks represent functional and structural distresses in portland cement concrete pavement. Traditionally, these distresses were repaired by partial depth repair (PDR). The performance of PDR varies substantially. Two types of polymeric patch materials, Material-A and Material-B, were used to repair spalls and cracks. Material-A was used to repair spalls in continuously reinforced concrete pavement. It provided quite satisfactory performance for more than 6 years. Material-B was used to repair cracks in jointed concrete pavement. Its performance was satisfactory when applied to stable slabs. Compared with full-depth repair (FDR), PDRs utilizing polymeric patch materials is much more cost effective, and PDR takes much less time than FDR. It was found that chip-and-patch method would work as well as saw-and-patch method as long as the repair limits include all the delaminated areas.

Original languageEnglish
Pages (from-to)518-522
Number of pages5
JournalJournal of Materials in Civil Engineering
Volume21
Issue number9
DOIs
StatePublished - 2009

Keywords

  • Concrete pavements
  • Cracking
  • Portland cements
  • Rehabilitation
  • Spalling

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