AIR CONTENTS AND AIR-VOID CHARACTERISTICS IN LOW-SLUMP DENSE CONCRETES

Air-void systems of low slump, low water-cement ratio concretes (LSDC) used for "dense" concrete overlays were evaluated. Dosages of neutralized vinsol resin and alkyl-benzyl sulfonate-based air-entraining agents needed to achieve specified air contents were approximately ten times those used in conventional concrete mixtures. Once the specified air contents had been achieved in the fresh concrete, air content and air-void characteristics in the hardened concrete were satisfactory. Entrapped air contents ranged from 1 to 2 percent and could be reduced to below 1 percent if prolonged internal vibration was employed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0889325X
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • WHITING, D
• Publication Date: 1985-9

Media Info

• Features: References;
• Pagination: p. 716-723
• Serial:
  • American Concrete Institute, Journal of
  • Volume: 82
  • Issue Number: 5
  • Publisher: American Concrete Institute
  • ISSN: 0889-325X

Subject/Index Terms

• TRT Terms: Air content; Air entraining agents; Air voids; Concrete; Concrete hardening; Overlays (Pavements); Slump test
• Uncontrolled Terms: Hardened concrete
• Old TRIS Terms: Air voids content
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00457957
• Record Type: Publication
• Source Agency: Engineering Information, Incorporated
• Files: TRIS
• Created Date: Sep 30 1987 12:00AM