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http://dx.doi.org/10.14190/JRCR.2019.7.3.187

Characteristic Evaluation of FA-Based Geopolymer with PLA Fiber  

Kwon, Seung-Jun (Department of Civil and Environmental Engineering, Hannam University)
Hwang, Sang-Hyeon (Department of Civil and Environmental Engineering, Hannam University)
Cho, Young-Keun (Korea Confirmity Laboratories, Yeosu-si)
Kim, Tae-Sang (Korea Confirmity Laboratories)
Moon, Eun-Jin (Korea Confirmity Laboratories)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.7, no.3, 2019 , pp. 187-193 More about this Journal
Abstract
Regarding physical absorption mechanism for fine particles(Dust), internal pore-bridging is a major parameter in porous media. In this paper, internal bridging pore system is invented through FA-based geopolymer and incorporated PLA (Polylactic Acid) fiber with biodegradability. With various mix proportions, compressive strength over 20MPa is obtained but PLA is little dissolved in the condition of NaOH 5mole and $30^{\circ}C$ of temperature, which was found that temperature rising accelerates PLA solubility. Within 24hours, beads type PLA is completely dissolved under $90{\sim}130^{\circ}C$ and NaOH 5~12mole of alkali. In room condition, geo-polymerization is limitedly occurs so that the internal pore after PLA dissolution is thought to be effective to absorption and storage of fine particles.
Keywords
Geopolymer; PLA fiber; Dissolution; Internal pore; Pore-bridging; Temperature;
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Times Cited By KSCI : 1  (Citation Analysis)
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