HIGH-STRENGTH CONCRETE FOR PACIFIC FIRST CENTER

Strict testing and quality control insured successful placement of high-strength concrete in the construction of a buliding in Seattle, Washington. The design strength of the concrete was 14,000 psi, and the actual strength achieved was measured at 18,000 psi. The article describes various methods for testing and production to accommodate this very high-strength mix. The high-strength concrete mix used a 3/8-inch pea gravel aggregate and a coarse sand with a fineness modulus of 3.2. Admixtures consisted of a water reducer/retarder, superplasticizer, and condensed silica fume. The cementitious portion fo the mix was made up of Type I cement having low water demand characteristics, together with one sack of fly ash per cubic yard. 4 x 8 inch test specimens were determined to yield the best results. Compressive test results are described. Modifications to conform to field conditions are also described. Quality control, and problems in production and handling are described.

• Availability:
  • Find a library where document is available. Order URL: http://www.aci-int.org/PUBS/JOURNALS/AbstractDetails.asp?srchtype=phrase&date=anytime&searchmonth=4&searchday=0&searchyear=1989&publication=Concrete+International&volume=11&issue=4&title=ECONOMIC+ADVANTAGES+OF+HIGH%2DSTRENGTH+CONCRETES+IN+COLUMNS&ID=3520
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Randall, V
  • Foot, K
• Publication Date: 1989-4

Media Info

• Pagination: p. 14-16
• Serial:
  • Concrete International
  • Volume: 11
  • Issue Number: 4
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0162-4075

Subject/Index Terms

• TRT Terms: Admixtures; Concrete; Concrete tests; High strength concrete; Mix design; Quality control; Silica fume; Strength of materials; Superplasticizers; Water reducing agents
• Uncontrolled Terms: Concrete strength
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00484066
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1989 12:00AM