ALKALI-SILICA REACTION OF CONCRETE WITH ADMIXTURES

The effects of calcium nitrite solution, fly ash, silica fume, and their combination on the alkali-silica reaction were studied experimentally according to the American Society of Testing and Materials (ASTM) C 227 (mortar bar test). To explore the mechanism of such effects, chemically combined water tests and x-ray diffraction examinations were also conducted. The microstructural information provided by these experiments was in agreement with the macroscopic observations. A neural network analysis was then conducted to study the feasibility of the prediction of a theoretical model. To solve the consequent nonlinear coupled equations, some globally convergent skills were adopted. The results showed that a cascade-correlation algorithm could produce reasonable outputs that coincide with the experimental results after proper training.

  • Availability:
  • Supplemental Notes:
    • Financial support was provided under the grant NO. CRC 98/01 EG04.
  • Corporate Authors:

    American Society of Civil Engineers

    1801 Alexander Bell Drive
    Reston, VA  United States  20191-4400
  • Authors:
    • Li, Zhihao
    • Mu, B
    • Peng, J
  • Publication Date: 2000-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00789007
  • Record Type: Publication
  • Contract Numbers: CMS-9713944, CRC 98/01 EG04, CMS-9872379
  • Files: TRIS
  • Created Date: Mar 26 2000 12:00AM