• 시멘트 심포지엄
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• 32호
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• pp.97-102
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• 2005

• 시멘트 심포지엄
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• 통권37호
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• pp.68-74
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• 2010

• 한국세라믹학회지
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• 제52권6호
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• pp.483-488
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• 2015

Blast furnace slag(BFS) is well known for its hardening mechanism in ordinary Portland cement with alkali activation due to its latent hydraulic property. The possibility of using calcium compound as activator for BFS has been investigated in this study. The hydration properties of calcium compound activated BFS binders were explored using heat of hydration, powder X-ray diffraction and compressive strength testing. Heat of hydration results indicate that the hydration heat of BFS is lower than OPC paste by about 50%. And ettringite as hydration product was formed continuously as the calcium sulfate was decreased. The maximum compressive strength of hardened BFS mortar at 28 days is confirmed to be 83% as compared with hardened OPC mortar.

• 한국세라믹학회지
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• 제39권7호
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• pp.699-703
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• 2002

Ettringite의 생성에 미치는 pH의 영향을 알아보기 위하여 ettringite 합성시 boric acid, hydrochloric acid, nitric acid 및 potassium hydroxide를 첨가하여 pH를 변화시켰다. 이때 XRD, SEM 분석을 통해 ettringite의 생성에 미치는 영향성을 검토하였다. 시험결과 pH10 이하에서는 석고와 aluminate gel이 안정화되어 ettringite 생성이 저해됨을 알수있었다

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
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• pp.154-155
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• 2015

This study was to review the basic characteristics in order to evaluate field application of the emergency road repair materials for development of CAC(Calcium Aluminate Composite) usage. The experiment was conducted with two phases of field and laboratory conditions and the laboratory experiment consisted indoor and outdoor tests for compressive and flexural strength. In the result of an experiment, for the compressive strength test, the specimens that cured in the laboratory conditions were not satisfied the requirement of standards, while the specimens that cured in the field conditions were well satisfied with those. For flexural strength test, the result value was satisfied with the requirement on the standards only in outdoor curing condition of laboratory experiment. Based on these results, it is expected that the CAC can be used as an emergency road repair material for field conditions.

• 한국건설순환자원학회논문집
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• 제11권3호
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• pp.202-209
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• 2023

In this study, microstructures and mechanical properties of repair materials using calcium sulfoaluminate (CSA) and/or amorphous calcium aluminate (ACA) cements were experimentally investigated. By XRD ansysis, the hydrates formed in repair materials were identified. In addition, the microstructures of repair materials were visually examined through SEM observation. Setting time of mortars made with repair materials were measured. The strength development and ultrasonic velocity of the mortars were also evaluated at the predetermined ages. As a result, it seems that ACA showed a benefit effect with respect to mechanical properties of mortars.

• 한국세라믹학회:학술대회논문집
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• 한국세라믹학회 2003년도 춘계총회 및 연구발표회 초록집
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• pp.154.2-154
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• 2003

• 한국세라믹학회:학술대회논문집
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• 한국세라믹학회 2003년도 춘계총회 및 연구발표회 초록집
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• pp.93.1-93
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• 2003

• 한국건설순환자원학회지
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• 제11권2호
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• pp.35-39
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• 2016

• 시멘트 심포지엄
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• 통권40호
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• pp.55-63
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• 2013