Durability performances of concrete with nano-silica
| Data(s) |
30/12/2014
|
|---|---|
| Resumo |
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. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Elsevier BV |
| Relação |
http://eprints.qut.edu.au/78135/1/CBM_NS_Durability_Accepted_version.pdf DOI:10.1016/j.conbuildmat.2014.10.014 Du, Hongjian, Du, Suhuan, & Liu, Xuemei (2014) Durability performances of concrete with nano-silica. Construction and Building Materials, 73, pp. 705-712. |
| Direitos |
Copyright 2014 Elsevier Ltd. 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 |
| Fonte |
School of Civil Engineering & Built Environment; Science & Engineering Faculty |
| Palavras-Chave | #090500 CIVIL ENGINEERING #Interfacial transition zone #Nano-particles #Permeability #Pore size distribution #Porosity #Pozzolanic reaction |
| Tipo |
Journal Article |
