Self-Cleaning and Mechanical Properties of Modified White Cement with Nanostructured TiO2

Title
Self-Cleaning and Mechanical Properties of Modified White Cement with Nanostructured TiO2
Author(s)
주상우알리레자카타이V. Heydari[V. Heydari]L. Moradkhannejhad[L. Moradkhannejhad]M. Safarpour[M. Safarpour]
Keywords
PHOTOCATALYTIC DEGRADATION; TITANIUM-DIOXIDE; BUILDING-MATERIALS; ORGANIC-COMPOUNDS; PORTLAND-CEMENT; VISIBLE-LIGHT; NANOPARTICLES; DYES; IRRADIATION; COMPOSITE
Issue Date
201307
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.7, pp.5109 - 5114
Abstract
In the present study, self-cleaning and mechanical properties of white Portland cement by addition of commercial available TiO2, nanoparticles with the average particle size of 80 nm were investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM) and BET were used to characterize TiO2 nanoparticles. For determination of self-cleaning properties of TiO2-modified white cement, colorimetric tests in decolorization of C.I. Basic Red 46 (BR46) in comparison to unmodified cement samples was applied. The results indicated that with increasing the amount of TiO2 nanoparticles in modified cement, self-cleaning property of the samples increased. The mechanical properties of TiO2-modified and unmodified cement samples, such as time of setting of hydraulic cement, compressive strength of hydraulic cement mortar and flexural strength of hydraulic cement mortar were examined. The results indicated that addition of TiO2 nanoparticles up to maximum replacement level of 1.0% improved compressive and flexural strength and decreased its setting time.
URI
http://hdl.handle.net/YU.REPOSITORY/29488http://dx.doi.org/10.1166/jnn.2013.7586
ISSN
1533-4880
Appears in Collections:
공과대학 > 기계공학부 > Articles
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