THE NATURE OF THE HYDRATION PRODUCTS IN HARDENED CEMENT PASTES

An understanding of the performance of portland cement-based materials requires knowledge at the microstructural level. Developments in the instrumentation of several techniques have led to improved understanding of the composition, morphology, and spatial distribution of the various products of cement hydration. In particular, our understanding of the nature of the nearly amorphous calcium silicate hydrate (C-S-H) phases - which are the principal binding phases in all portland cement-based systems - has been advanced by developments in solid-state NMR spectroscopy and analytical TEM. This paper presents an overview of the nature of the hydration products formed in hardened portland cement-based systems. It starts with the most straightforward cementitious calcium silicate systems, C3S and Beta-C2S, and then considers ordinary portland cement and blends of portland cement with silica fume, ground granulated iron blast-furnace slag, and finally alkali hydroxide-activated slag cements. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09589465
• Corporate Authors:

  Elsevier

  The Boulevard, Langford Lane
  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • Richardson, I G
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: p. 97-113
• Serial:
  • Cement and Concrete Composites
  • Volume: 22
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0958-9465

Subject/Index Terms

• TRT Terms: Calcium; Cement; Hydration; Silica fume; Silicates; Slag
• ITRD Terms: 7178: Calcium; 4758: Cement; 7195: Hydration; 4793: Microsilica; 7303: Silicate; 4561: Slag
• Subject Areas: Materials;

Filing Info

• Accession Number: 00793588
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 15 2000 12:00AM