알칼리 활성화제 종류별 페로니켈슬래그를 사용한 3성분계 시멘트 경화체의 내구특성 = Durability Characteristics of Ternary Cement Matrix Using Ferronickel Slag according to the Alkali-Activators

다국어 초록 (Multilingual Abstract)

This paper evaluates the mechanical properties and durability of cement matrix blended with mineral admixtures and ferronickel slag(FNS) powder w hich i s an i ndustrial b y-product during ferronickel smelting p rocess. The h ydration h eat, p ore structure, compressive strength, length change, rapid chloride penetration test(RCPT), and freezing and thawing resistance of ternary blended cement matrix were investigated and compared with ordinary portland cement matrix. The result showed that t he c ompressive s trength of t ernary b lended c ement matrix u sing f erronickel s lag powder a nd m ineral m ixture w as l ow in strength compared to the reference concrete, but recovered to a certain extent by using alkali activator. Length change of cement mortar using FNS powder have shown less shrinkage occurs than the reference specimen. In addition, irrespective o f using the alkali-activators, a ll t ernary mix a re i ndicative of t he ' very l ow' range for chloride i on penetrab ility according to the ASTM C 1202, and the freeze-thaw resistance also showed excellent results.

참고문헌 (Reference)

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