Role of Al in the crystal growth of alkali-activated binders under a hydrothermal condition알루미늄이 수열합성조건에서 알칼리활성 바인더의 결정상 형성에 미치는 영향

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The present study investigates the role of Al in the evolution of the crystalline phases of an alkali-activated binder. Samples were synthesized corresponding to the binder composition with various $Al_2O_3/Na_2O$ and MgO/binder ratios in hydrothermal condition. Thermodynamic modelling was carried out to predict the effect of the Al content in the binder composition on the formation of Al-bearing phases. The test results showed that an increasing Al content led to the alteration of the predominant zeolitic crystalline phase in the alkali-activated binder. In addition, MgO incorporation enhanced the reaction degree of hydration in the alkali-activated system and the crystal growth, specifically hydrotalcite-like phase. Consequently, the formed reaction products had a great effect on the pore characteristics of the alkali-activated binder given their variations in the crystal structure.
Advisors
Lee, Haeng-Kiresearcher이행기researcher
Description
한국과학기술원 :건설및환경공학과,
Publisher
한국과학기술원
Issue Date
2020
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 건설및환경공학과, 2020.2,[iv, 56 p. :]

Keywords

Alkali-activated binder▼aHydrothermal condition▼a$Al_2O_3$▼aMgO▼aThermodynamic modeling▼aHydrotalcite▼aZeolitic phase; 알칼리활성 바인더▼a수열합성▼a알루미늄▼a산화마그네슘▼a열역학모델링▼a하이드로탈사이트▼a제올라이트

URI
http://hdl.handle.net/10203/283943
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=910659&flag=dissertation
Appears in Collection
CE-Theses_Master(석사논문)
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