Development of a new alkali resistant coating

The effect of different new sol-gel BaO—TiO2—SiO2 and CaO—BaO—TiO2—SiO2 coatings on long-term durability of glass fiber reinforced cement (GRC) was examined. Flexural strength of GRC was measured after curing for 7 to 150 days. Significant improvement was observed for coated GRC in this study and di...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2003-07, Vol.27 (3), p.309-313
Main Authors: JIJIAN CHENG, WEN LIANG, YINGJIE HU, QI CHEN, FRISCHAT, G. H
Format: Article
Language:English
Subjects:
Applied sciences
Barium oxides
Buildings. Public works
Calcium oxide
Cement concrete constituents
Cement reinforcements
Cements
Coating effects
Exact sciences and technology
Fiber reinforced cements
Fiber reinforced materials
Flexural strength
Glass fiber reinforced cements
Glass fibers
Glass-epoxy composites
Materials
Properties and test methods
Properties of anhydrous and hydrated cement, test methods
Silicon dioxide
Sol-gel processes
Titanium dioxide
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Summary:The effect of different new sol-gel BaO—TiO2—SiO2 and CaO—BaO—TiO2—SiO2 coatings on long-term durability of glass fiber reinforced cement (GRC) was examined. Flexural strength of GRC was measured after curing for 7 to 150 days. Significant improvement was observed for coated GRC in this study and discussed in terms of the hydrate formation at interface. Concerned with the alkali resistance, CaO—BaO—TiO2—SiO2 coating was more effective than BaO—TiO2—SiO2 coating. In special, the 10CaO—10BaO—60TiO2—20SiO2 coating, prepared by sol-gel method, was recommended for the highest flexural strength of GRC and least corrosion at surface of E-glass fiber.
ISSN:0928-0707
1573-4846
DOI:10.1023/A:1024068919754