LOSSES IN AIR CONTENT DURING TRANSPORTATION

The results obtained from air content measurements made in conjunction with the casting of 13 large-scale bridges and from material gathered at approved ready-mixed concrete plants have shown that the air content is some 0.7 percent lower on the site than in the plant. Concrete which is to conform to the minimum Swedish air content requirement of min. 4.5 percent on site should, consequently, be proportioned for an average of 6 percent in the plant so as to allow for scatter in the production and loss during transport. This study also presents other observations made in conjunction with investigations concerning the measurement of air content.

• Supplemental Notes:
  • Papers presented at the Conference on Ready Mixed Concrete, Dundee, September 28-October 1, 1975.
• Corporate Authors:

  Cement and Concrete Research Institute

  Drottning Kristinas Vaeg 26
  Stockholm 70,   Sweden 
• Authors:
  • Hellstrom, B
  • Petersons, N
• Conference:
  • Papers presented at the Conference on Ready Mixed Concrete, Dundee, September 28-October 1, 1975.
• Publication Date: 1976-2

Media Info

• Features: References; Tables;
• Pagination: p. 29-35

Subject/Index Terms

• TRT Terms: Air content; Concrete bridges; Concrete plants; Measurement; Ready mixed concrete; Transportation
• Subject Areas: Materials; Transportation (General);

Filing Info

• Accession Number: 00139284
• Record Type: Publication
• Report/Paper Numbers: 8:75
• Files: TRIS
• Created Date: Sep 16 1976 12:00AM