EVALUATION OF HYDRAULIC CEMENT CONCRETES CONTAINING SLAG ADDED AT THE MIXER

The study evaluated the effect of ground-granulated, iron blast-furnace slags on the properties of hydraulic cement concretes such as normally used in highway construction. Two cements with different alkali contents and two slags with different activity indices were used. Slags were used as replacements for portions of portland cement at 40%, 50%, and 65% by weight. This interim report presents the data on the properties of the freshly mixed concrete and the test results on time of set, heat of hydration, compressive strength, flexural strength, permeability, resistance to freezing and thawing, air void system of the hardened concrete, and the length change values for 32 weeks. Results of the studies on carbonation and hydration and the additional length change data will be included in the final report. It is concluded from this study that concretes in which up to 50% by weight of the cement has been replaced with a slag meeting the requirements of ASTM C989 and having a minimum activity index of 100 are satisfactory for highway construction. (FHWA)

• Corporate Authors:

  Virginia Highway and Transportation Research Council

  Charlottesville, VA  United States 

  Virginia Department of Highways

  Traffic and Planning Division, 1221 East Broad Street
  Richmond, VA  United States  23219

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Ozyildirim, H C
• Publication Date: 1984-4

Media Info

• Pagination: 29 p.

Subject/Index Terms

• TRT Terms: Air voids; Alkali; Compressive strength; Concrete; Concrete hardening; Concrete setting; Flexural strength; Freeze thaw durability; Heat of hydration; Hydraulic cement; Mixers; Permeability; Portland cement; Slag
• Uncontrolled Terms: Activity; Hardened concrete; Setting time
• Old TRIS Terms: Air voids content; Alkalies
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00387777
• Record Type: Publication
• Report/Paper Numbers: FHWA-VA-84-40 Intrm Rpt.
• Contract Numbers: 1969
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 28 1984 12:00AM