Paper Title:
Preparation and Design of Function Aggregate in Concrete
  Abstract

In order to essentially improve interfacial transition zone between cement paste and aggregate, the concept and ideal model of function aggregate are developed. Function aggregate is composed of a porous matrix with high strength and low water absorption, and a coating layer which can hydrate in cement paste. It can improve ITZ between aggregate and cement paste and control curing range of cement paste. Based on optimization of raw materials and processing techniques, high strength aggregate with low absorption and minor C2S and C4AF phase in coating layer is acquired. Results indicate that cordierite is formed in aggregate when MgO content reaches 2%, and it shows that the presence of cordierite minimizes the potential for micro-crack formation, thus decreases water absorption.

  Info
Periodical
Edited by
Yafang Han, Tianmin Wang and Shaoxiong Zhou
Pages
17-22
DOI
10.4028/www.scientific.net/MSF.650.17
Citation
S. Hu, T. Yang, F. Wang, J. Wang, "Preparation and Design of Function Aggregate in Concrete", Materials Science Forum, Vol. 650, pp. 17-22, 2010
Online since
May 2010
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Price
$32.00
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