Mechanical Properties and Environmental Assessment of Mortars Containing Metallic Oxides
Publication: Journal of Environmental Engineering
Volume 132, Issue 8
Abstract
The aim of this work is to study the effect of metallic oxides additions to mortars on their mechanical and long-term environmental behaviors. Four common metal oxides were selected ( , ZnO, as main oxides and a mix of , as minor oxides) and incorporated in mortars using a fractional factorial design of experiments. The studied variables were: setting time (ST), compressive and flexural strengths (UCS and UFS), availability, effective diffusion coefficient (De), and immission after . The analysis of the results shows that ZnO and are statistically significant on the mechanical properties at short ages. ZnO increases the ST and it decreases the UCS and UFS, whereas shows an antagonistic effect. The metal release from monoliths was low, leading to small values of De. Finally the estimated immission of Pb, Zn, and Cr after were lower than the standard limit of Dutch regulation.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 132 • Issue 8 • August 2006
Pages: 949 - 955
Copyright
© 2006 ASCE.
History
Received: Apr 28, 2005
Accepted: Dec 28, 2005
Published online: Aug 1, 2006
Published in print: Aug 2006
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