ACCELERATED DETERMINATION OF THE AIR VOID DISTRIBUTION IN FRESH CONCRETE

HURTIG BESTEMMELSE AV LUFTPOREFORDELINGEN I FERSK BETONG

In the investigation described ten fresh concrete mixes with various air entraining agents were studied to determine the size and distribution of air voids. Mixes without any air entraining agents or with aluminium powder were used as reference mixes. The method used is based on the idea that large air voids evacuate faster than small voids when concrete is subjected to vibrations. According to the author the total air void content stipulated in regulations today could often be much reduced if the size and the distribution of air voids were also taken into consideration. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0029130700291307
• Corporate Authors:

  Nordiska Betongfoerbundet

  Fack
  10044 Stockholm 70,   Sweden 
• Authors:
  • JOHANSEN, R
• Publication Date: 1976

Language

• Norwegian

Media Info

• Features: Figures; References;
• Pagination: p. 30-31
• Serial:
  • Nordisk Betong
  • Volume: 20
  • Issue Number: 5
  • Publisher: Nordiska Betongfoerbundet
  • ISSN: 002913070029-1307

Subject/Index Terms

• TRT Terms: Admixtures; Air entrained concrete; Air voids; Fresh concrete; Methodology; Physical distribution; Polymer concrete; Porosity; Size; Vibration
• Old TRIS Terms: Air voids content
• Subject Areas: Freight Transportation; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00149888
• Record Type: Publication
• Source Agency: Swedish National Road and Traffic Research Institute
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Jun 17 1977 12:00AM