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Title |
Strength and Resistance to Chloride Penetration in Mortar Containing Ferronickel Slag Powder by Vibrated and Rolled Manufacturing Method
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DOI |
https://doi.org/10.4334/JKCI.2017.29.6.633 |
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Keywords |
페로니켈슬래그 미분말 ; 촉진 염화물 이동계수 ; 통과전하량 ; 메카노케미칼 반응 ferronickel slag powder ; rapid chloride migration coefficient ; charge passed ; mechanochemistry |
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Abstract |
FNS (ferronickel slag) is a byproduct from the ferronickel smelting process, because it is a non-ferrous metal, an activation technique is required in order to use as an concrete admixtures. In this study, the strength and durability of mortar using mechanochemically activated ferronickel slag powder and ordinary portland cement were evaluated through rapid chloride migration coefficient, quantities of electric charge passed, compressive and flexural strength tests. Mortar samples are prepared by vibrated and rolled manufacturing method considering 2 level of FNS’s blain (3,560 cm2/g, 4,840 cm2/g) and 6 level of FNS’s replacement ratios (0 %, 10 %, 20 %, 30 %, 40 %, 50 %) and tests were performed considering age effect. According to the test results, the ferronickel powder having a blain 3,560 cm2/g showed a significant improvement in strength and durability within a replacement ratio range of 20 to 30 %, and the ferronickel slag powder having a blain 4,840 cm2/g showed a significant improvement within a replacement ratio range of 30 to 40 %.
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