Service properties and microstructure of mortars with different contents of slag and fly ash exposed to different hardening environments

Author(s): J.M. Ortega, I. Sánchez, M.A. Climent
Paper category: Conference
Book title: 2nd International conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. Van Breugel, Wei Sun, Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 559-567
Total Pages: 8
Language: English

Abstract: In recent years the use of active additions on cement, like ground granulated blast-furnace slag and fly ash, has become very popular because they have many environmental benefits. In this work, the
behaviour of mortars made with four different commercial cement types, an ordinary Portland cement, a slag cement and two fly ash cements, was tested. These mortars were exposed to two different environmental conditions during their hardening, an optimum laboratory condition and a Mediterranean climate environment with lower relative humidity. The development of the microstructure of mortars and the changes of their service properties, were studied at different hardening ages until 90 days. The mortars made with slag and fly ash cements have shown a good behaviour compared with ordinary Portland cement mortars. As a preliminary conclusion, cements with slag and fly ash hardened under environmental conditions of Mediterranean climate, can have good service properties at early hardening ages, even better than Portland cement.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00

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