Nanostructural evolution of binder gel in alkali-activated cementitious materials exposed to extreme environments = 극한환경에 노출된 알칼리활성 시멘트계 결합재 겔의 나노구조 진화

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dc.contributor.advisorLee, Haeng-Ki-
dc.contributor.advisor이행기-
dc.contributor.authorPark, Sol-Moi-
dc.date.accessioned2019-08-22T02:37:02Z-
dc.date.available2019-08-22T02:37:02Z-
dc.date.issued2018-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=734222&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/264404-
dc.description학위논문(박사) - 한국과학기술원 : 건설및환경공학과, 2018.2,[vii, 123 p. :]-
dc.description.abstractThe pursuit of alternative cementitious binder system has been necessary for extending the performance and lifespan of extreme-engineered structures. The deterioration of cement exposed to extreme conditions poses threat to the entire structures and their integrity. A number of alternatives for conventional Portland cement has thus far been proposed, yet their long-term durability performance, especially in extreme environments is an ongoing topic of studies. This dissertation explores the applicability of alkali-activated cement for extreme engineering by investigating the fundamental degradation mechanism and nanostructural changes in this material induced by exposure to extreme environments. To this end, alkali-activated fly ash, slag and blend of both fly ash and slag were exposed to extreme conditions involving high $CO_2$, high temperature or potential gradient which accelerates leaching upon contact with water. The structural evolution of binder gel in alkali-activated cement exposed to extreme environments was investigated using multi-analytical tools. The obtained results provide new insight into the durability performance of the binder system, which establishes fundamental knowledge of deterioration phenomena driven by extreme conditions. The thesis is concluded by summarizing the implication of the results and potential topics of future studies.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectAlkali-activated cement▼aExtreme engineering▼aDurability▼aCharacterization▼aCement-
dc.subject알칼리활성시멘트▼a극한공학▼a내구성▼a특성분석▼a시멘트-
dc.titleNanostructural evolution of binder gel in alkali-activated cementitious materials exposed to extreme environments = 극한환경에 노출된 알칼리활성 시멘트계 결합재 겔의 나노구조 진화-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :건설및환경공학과,-
dc.contributor.alternativeauthor박솔뫼-
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CE-Theses_Ph.D.(박사논문)
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