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Influence of nano silica on the fresh, hardened and durability properties of self-cleaning white Portland cement mortars

Journal of Ceramic Processing Research
약어 : J. Ceram. Process. Res.
2019 vol.20, no.3, pp.270 - 275
DOI : 10.36410/jcpr.2019.20.3.270
발행기관 : 한양대학교 청정에너지연구소
연구분야 : 재료공학
Copyright © 한양대학교 청정에너지연구소
Atta ur rehman 1 ,  Jeong Bae Lee 2 ,  Abdul Qudoos 3 ,  Sadam Hussain Jakhrani 4 ,  Hong-Gi Kim 5 ,  Jae-Suk Ryou 6

1Hanyang University

2GFC R&D CO., Ltd

3Hanyang University

4Hanyang University

5Hanyang University

6Hanyang University

282 회 열람

In this study, nano titanium dioxide and nano silica have been added in white Portland cement mortars. The dosage of nano-TiO2 was fixed to 3% while the dosage of nano-SiO2 was varied from 0%-3%. Water/binder ratio was 0.45% and binder/sandratio was 1:3. The workability, water absorption, compressive and flexural strengths of mortars was measured. Thepermeability of mortars was measured using Nordest test and the carbonation resistance was measured in a carbonationchamber. The degradation of rhodamine B dye on the surface of mortars was measured after exposure of the white mortarsto the ultraviolet light. Addition of nano-SiO2 increased the compressive and flexural strengths of mortars, reduced the waterabsorption of mortars and resisted the penetration of chloride ions. The self-cleaning of the white mortars was unaffected bythe addition of nano-SiO2 particles.

Nano silica, Nano titanium dioxide, White Portland cement mortars, Mechanical properties, Self-cleaning, Photocatalysis, durability, Chloride penetration, Carbonation.

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