MID TO LONG TERM PERFORMANCE OF FIELD MOLDED SEALANTS FOR REPAIRING CONCRETE JOINTS IN HYDRAULIC STRUCTURES

This four-year project was carried out in an aim to conduct a mid- to long-term, large scale study on selected field-moulded sealants in concrete joints at different hydraulic structures under extremely cold climatic conditions. Other objectives were to specify installation techniques, carry out periodic inspections, evaluate the performance of various types of such sealants that could be of value to all potential users. The project also included a cost effectiveness study. General and specific guidelines were prepared for sealant selection and their installation. Based on these guidelines, different types of sealants, polyurethanes, polysulphides, silicone (1- and 2-component), were selected for the study. They were installed in horizontal, vertical and inclined joints at different locations on five Hydro-Quebec dams, mostly on the crest, and were periodically inspected for their performance. The findings are presented in this paper.

• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Mirza, J
• Conference:
  • Fourth World Congress on Joint Sealants and Bearing Systems for Concrete Structures
  • Location: Sacramento, California
  • Date: 1996-9-29 to 1996-10-3
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: 26p

Subject/Index Terms

• TRT Terms: Concrete; Field strength; Hydraulic structures; Inspection; Joint sealers; Polyurethane resins; Resins; Silicones
• Subject Areas: Highways; Maintenance and Preservation; Materials; I32: Concrete;

Filing Info

• Accession Number: 00779838
• Record Type: Publication
• Report/Paper Numbers: SP 164-62
• Files: TRIS
• Created Date: Dec 16 1999 12:00AM