Durability performances of concrete with nano-silica

Du, Hongjian, Du, Suhuan, & Liu, Xuemei (2014) Durability performances of concrete with nano-silica. Construction and Building Materials, 73, pp. 705-712.

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This study investigated the durability properties of concrete containing nano-silica at dosages of 0.3% and 0.9%, respectively. Due to the nano-filler effect and the pozzolanic reaction, the microstructure became more homogeneous and less porous, especially at the interfacial transition zone (ITZ), which led to reduced permeability. Tests on the durability properties verified the beneficial effects of nano-silica. The channels for harmful agents through the cement composites were partially filled and blocked. The pore size distribution also indicated that the large capillary pores were refined by the nano-silica, due to the combined contribution of the nano-filler effect and the pozzolanic reaction.

Impact and interest:

23 citations in Scopus
21 citations in Web of Science®
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ID Code: 78135
Item Type: Journal Article
Refereed: Yes
Keywords: Interfacial transition zone, Nano-particles, Permeability, Pore size distribution, Porosity, Pozzolanic reaction
DOI: 10.1016/j.conbuildmat.2014.10.014
ISSN: 0950-0618
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Elsevier Ltd.
Copyright Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials Volume 73, 30 December 2014, Pages 705–712
Deposited On: 30 Oct 2014 00:57
Last Modified: 16 Jan 2017 12:56

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