CHARACTERIZATION OF ADMIXTURE AS PLASTICIZER OR SUPERPLASTICIZER BY DEFLOCCULATION TEST

A deflocculation test based on the method proposed by Verhasselt and Pairon has been applied to different mixes of cement-admixtures to distinguish quickly between plasticizer and superplasticizer. The admixtures used were commercial products containing different proportions of lignosulfonates, sulfonated naphthalene formaldehyde condensate, and sulfonated melamine formaldehyde condensate. Three different cements were used: a low tricalcium aluminate (C3A = 2.5%), a high-alkali content (Na2O equivalent = 0.95%), and a high-fineness portland cement (S.A. Blaine = 500 sq m/kg). In addition, the minimum active dosage of superplasticizer was calculated. The influence of the type of cement on the minimum active dosage is clearly shown by the results obtained through this method.

• Record URL:
  • http://www.concrete.org/Publications/InternationalConcreteAbstractsPortal.aspx.aspx?m=details&i=426
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Supplemental Notes:
  • Financial assistance was provided by CICYT (Project AMB96-0415).
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Macias, A
  • Goni, S
• Publication Date: 1999-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 40-46
• Serial:
  • ACI Materials Journal
  • Volume: 96
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Admixtures; Alkali; Cement; Compressive strength; Concrete; Condensate; Densification; Flexural strength; Flocculating agents; Formaldehyde; Lignosulfonate; Mortar; Plasticizers; Portland cement; Setting (Concrete); Sulfonates; Superplasticizers; Tricalcium aluminate
• Uncontrolled Terms: Deflocculation tests
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00762901
• Record Type: Publication
• Contract Numbers: CMS-9601262
• Files: TRIS
• Created Date: May 1 1999 12:00AM