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논문 기본 정보

자료유형
학술저널
저자정보
Jihwan Won (Kyonggi University)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제18권 제2호
발행연도
2017.2
수록면
166 - 171 (6page)
DOI
http://dx.doi.org/

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In this study, geopolymers were reinforced with artificial aggregates, and the effect of the coating of the aggregates with varioussolutions on the strength of the composites was analyzed. The applied alkaline coating solutions were sodium silicate andNaOH. The composites made with coated aggregates had a higher compressive strength than specimens made with pureaggregates, regardless of kinds of coating solutions. That was possible because the geopolymers paste kept their fluidity duringthe forming process; thus, the coating layer of the aggregates prevented the aggregates from absorbing water. In addition, ahigh concentration of NaOH in the vicinity of the boundary between the matrix and the aggregates enhanced the geopolymericreaction, which in turn increased the compressive strength of the composites. In particular, when the geopolymer wascombined with aggregates coated with NaOH of 16 M, the resulting composite had a compressive strength of 32.2 MPa, whichis about six times higher than that of composites with pure aggregates. With the advantage of light weight, the compositesfabricated in this study can be used in various fields, such as insulation boards, sound proofing materials, fire protectingmaterials, and chemically resistant materials.

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