The chemical composition and microstructure of hydration products in blended cements

Pastes of neat and blended Portland cement (incorporating either 60% ground granulated blast furnace slag, or 30% pulverised fuel ash, or 22% volcanic ash) were cured for one year at temperatures ranging from 10 to 60 degrees C. The hydration products were characterised by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. The apparent porosity of the pastes increased with increasing curing temperature. Chemical analysis data for the hydration products are presented in ternary composition diagrams, where it is noted that in the presence of the replacement materials the composition of the C-S-H shifted towards higher Si and Al contents, whereas that of Ca was lower. (A) "Reprinted with permission from Elsevier".

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09589465
• Authors:
  • ESCALANTE-GARCIA, J -
  • SHARP, J H
• Publication Date: 2004-11

Language

• English

Media Info

• Pagination: 967-76
• Serial:
  • Cement and Concrete Composites
  • Volume: 26
  • Issue Number: 8
  • Publisher: Elsevier
  • ISSN: 0958-9465

Subject/Index Terms

• TRT Terms: Cement; Concrete curing; Hydration; Porosity; Slag; Temperature
• ITRD Terms: 4758: Cement; 4702: Curing (concrete); 7195: Hydration; 5938: Porosity; 4561: Slag; 6722: Temperature
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 01012428
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 20 2005 3:29PM