FREEZE THAW DURABILITY OF STEEL AND POLYPROPYLENE REINFORCED SHOTCRETES: A REVIEW. IN: DURABILITY OF CONCRETE. SECOND INTERNATIONAL CONFERENCE. AUGUST 4-9, 1991, MONTREAL, CANADA. VOLUME II
This paper summarizes the results of several laboratory studies in which both wet and dry-mix fiber reinforced shotcretes have been tested to ASTM C666 Procedure A (Freezing and Thawing in Water). It is shown that both steel and high volume polypropylene fiber reinforced wet-mix shotcretes can be made to be freeze-thaw durable, provided the shotcrete is properly air entrained. Non-air entrained fiber reinforced wet-mix shotcrete deteriorates very rapidly in the ASTM C666 Procedure A test. In the dry-mix shotcrete process it does not appear possible to effectively use air entraining admixtures; in spite of this, it is shown that properly designed and applied steel fiber reinforced dry-mix shotcrete can be made to be freeze-thaw durable. The important criteria for making such steel fiber reinforced dry-mix shotcretes freeze-thaw durable are discussed. It is currently not possible to practically produce high volume polypropylen fibre reinforced shotcrete using the dry-mix process and so the inherent freeze-thaw durability of such a system is not known.
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Availability:
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Corporate Authors:
P.O. Box 19150, Redford Station, 22400 Seven Mile Road
Detroit, MI United States 48219 -
Authors:
- Morgan, D R
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Conference:
- DURABILITY OF CONCRETE. SECOND INTERNATIONAL CONFERENCE.
- Location: MONTREAL , Canada
- Date: 1991-8-4 to 1991-8-9
- Publication Date: 1991
Media Info
- Features: References; Tables;
- Pagination: p. 901-918
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Serial:
- Volume: II
Subject/Index Terms
- TRT Terms: Durability; Fibers; Freeze thaw durability; Polypropylene; Shotcrete; Synthetic fibers
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00616167
- Record Type: Publication
- Report/Paper Numbers: SP 126-48
- Files: TRIS
- Created Date: Oct 31 1991 12:00AM