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Microstructural alterations of slag and silica fume concretes subjected to short term heat curing



Author(s): M. Santhanam and K. Scrivener
Paper category: conference
Book title: Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. van Breugel, Wei Sun and Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 169 – 180
Total Pages: 11
Language: English


Abstract: This paper describes the microstructural study of slag and silica fume concretes subjected to short term heat curing. Qualitative and quantitative characterization of the microstructure was performed using backscatter electron imaging and image analysis. Significant differences were observed in the composition of the inner C-S-H as well as in the distribution of sulphate and aluminate in the outer C-S-H for the concretes with slag and silica fume as compared to plain OPC. Further, the degree of hydration measured using image analysis was substantially different. The study also explored the role of the initial pre-heating delay period on the microstructure of the heat cured concretes.


Online publication: 2012-05-16
Publication Type: full_text
Public price (Euros): 0.00