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http://dx.doi.org/10.15683/kosdi.2019.06.30.239

Resistance to Sulfate Attack of Concrete Containing LCD glass powder Using Industrial By-products  

Kim, Seong-Kyum (Department of Civil Engineering, Daegu University)
Song, Jae-Ho (Department of Civil Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Society of Disaster Information / v.15, no.2, 2019 , pp. 239-248 More about this Journal
Abstract
Purpose: This study aims to enhance the resistance against sulfate attack compared to ordinary Portland cement (OPC) concrete by using liquid crystal display (LCD) as binder. Method: The fundamental properties including compressive strength and porosity of concrete replaced by LCD up to 15% at increments of 5% and in turn, the weight, volume, and strength loss of LCD-mixed concrete was analyzed. Results: For the concrete substituted by 5% of LCD, it showed the highest compressive strength at 28 days of curing, and particular at immersion of $Na_2SO_4$ solution, it was achieved the lowest loss of weight, volume and strength due to an decreased porosity at capillaries. In contrast, there is no distinct difference of the sulfate attack resistance between LCD-mixed concretes under exposure of $MgSO_4$ solution, excepted for OPC concrete. Conclusion: In this study, comparison of resistance to sulfate attack between LCD-mixed concretes, and it would be proposed the possibility of LCD usage as binder through long-term verification with extended replacement ratio and identification of changes of hydrates in the cement matrix.
Keywords
LCD Glass Powder; Concrete Admixture; Pore Structure; Sulfate Attack; Industrial By-products;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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