2011
DOI: 10.4334/jkci.2011.23.2.225
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Fundamental Properties of Cement Composites Containing Lightly Burnt MgO Powders

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Cited by 10 publications
(3 citation statements)
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“…Magnesium oxide (MgO) is widely used in concrete manufacturing. Previous studies have demonstrated that the hydration and expansion characteristics of MgO positively affected concrete by reducing the hydration heat, decreasing the shrinkage, and changing the porosity and pore size distribution [ 29 , 30 , 31 , 32 ]. As the anti-washout resistance of concrete depends on the fine fraction of its binder material, various very fine mineral additives have been suggested to control the anti-washout properties of UWC [ 17 ].…”
Section: Introductionmentioning
confidence: 99%
“…Magnesium oxide (MgO) is widely used in concrete manufacturing. Previous studies have demonstrated that the hydration and expansion characteristics of MgO positively affected concrete by reducing the hydration heat, decreasing the shrinkage, and changing the porosity and pore size distribution [ 29 , 30 , 31 , 32 ]. As the anti-washout resistance of concrete depends on the fine fraction of its binder material, various very fine mineral additives have been suggested to control the anti-washout properties of UWC [ 17 ].…”
Section: Introductionmentioning
confidence: 99%
“…특히 G50의 경우 7일에서 28일 사이에 1.4배의 낮은 증가율을 보였으나 28일에서 60일 사이에는 3.4배의 높은 증가율을 보였다. 이는 고화제 내 MgO가 보통 28일 후에 수화반 응을 시작하는 특성 때문인 것으로 판단된다(Du, 2005;Gao et al, 2007;Mo et al, 2010;Jang et al, 2011). 예외적으로 P20의 60일자 강도는 28일보다 1.1배 낮았는 데, 이는 P20 내 80%를 차지하는 MgO가 수화 및 탄산 염화물을 과다하게 생성하여 시료의 건전성 악화 및 강도 저하를 유발시킨 것으로 판단된다(Kwon et al, 2013).…”
unclassified
“…하지만 이러한 플라이애시 사용 및 MgO 분말 치환에 따른 콘크리트의 내구성에 관한 연구는 부족한 실정이다. 일반적으 로 플라이애시는 장기재령에서 수밀성 및 내구성을 향상시키는 것으로 알려져 있으나 (Kim et al, 1991;Lee et al, 1999;Naik et al, 1994) (Liu et al, 1992;Jang et al, 2011;Salomao et al, 2007).…”
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