Paper Title:
Study on Long Term Performance of Concrete of Slag-Alkali Higher Calcium Fly Ash
  Abstract

The slag-alkali is used to activate the activity of higher calsium fly ash. By the designs of the mixture ratio and the quadratic regression orthogonal design, the best combination is sought out. Several mixture factors which affect the rule of the concrete material properties and long term performance are researched. The mathematic models which are set up by the mixture ratio design with the quadralic regression orthogonal design can be effective. The precision is high. The strength of the concrete of slag-alkali fly ash was still increasing after 8 year. The dispersion degree of those specimens is small. The SEM photo of cracked specimen and early concrete specimen shows the surface of fly ash in 7 days concrete is slick and that in 8 years old specimen has been enwrapped tightly by much hydrate plant.

  Info
Periodical
Key Engineering Materials (Volumes 302-303)
Edited by
Nai-Qian Feng and Gai-Fei Peng
Pages
98-104
DOI
10.4028/www.scientific.net/KEM.302-303.98
Citation
M. Tang, X. Li, "Study on Long Term Performance of Concrete of Slag-Alkali Higher Calcium Fly Ash ", Key Engineering Materials, Vols. 302-303, pp. 98-104, 2006
Online since
January 2006
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Price
$32.00
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