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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50380

Title: Improved microstructure of cement-based composites through the addition of rock wool particles
Authors: Wei-Ting Lin
An Cheng
Ran Huang
Si-Yu Zou
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Scanning electron microscopy
X-ray diffraction analysis
Thermo gravimetric analysis
Chloride ion penetration
Date: 2013-10
Issue Date: 2018-10-05T08:53:52Z
Publisher: Materials Characterization
Abstract: Abstract: Rock wool is an inorganic fibrous substance produced by steam blasting and cooling molten glass. As with other industrial by-products, rock wool particles can be used as cementitious materials or ultra fine fillers in cement-based composites. This study investigated the microstructure of mortar specimens produced with cement-based composites that include various forms of rock wool particles. It conducted compressive strength testing, rapid chloride penetration tests, X-ray diffraction analysis, thermo-gravimetric analysis, and scanning electronic microscopy to evaluate the macro- and micro-properties of the cement-based composites. Test results indicate that inclusion of rock wool particles in composites improved compressive strength and reduced chloride ion penetration at the age of 91 days due to the reduction of calcium hydroxide content. Microscopic analysis confirms that the use of rock wool particles contributed to the formation of a denser, more compact microstructure within the hardened paste. In addition, X-ray diffraction analysis shows few changes in formation of pozzolanic reaction products and no new hydrations are formed with incorporating rock wool particles.
Relation: 84 pp.1-9
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50380
Appears in Collections:[河海工程學系] 期刊論文

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