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http://dx.doi.org/10.5345/JKIBC.2019.19.2.105

Applicability of Ferro-nickel Slag Sand for Dry Mortar in Floor  

Cho, Bong-Suk (Research Institute of Industrial Science and Technology)
Kim, Won-Ki (Construction Material Research Center, Asiacement Corp.)
Hwang, Yin-Seong (Construction Material Research Center, Asiacement Corp.)
Koo, Kyung-Mo (Construction Material Research Center, Asiacement Corp.)
Publication Information
Journal of the Korea Institute of Building Construction / v.19, no.2, 2019 , pp. 105-112 More about this Journal
Abstract
Fine aggregate made of ferronickel slag(FNS) is similar to natural fine aggregates and is used in concrete structures both domestically and abroad, but its applications and research areas are limited. In this research, in order to expand the availability of FNS and improve the performance of cement mortar products, the applicability of FNS on dry mortar for floor was examined. Experimental results show that FNS improves flow of cement mortar because it has low absorption rate, spherical shape, and glassy surface. Also, the high stiffness of the FNS aggregate itself is considered to contribute to the improvement of cement mortar quality such as crack reduction by improving the compressive strength and shrinkage reducing. In addition, when FNS fine aggregate is applied, it was possible to secure the impact sound insulation performance equal to or higher than that of mortar using natural fine aggregate.
Keywords
ferro-nickel slag sand; dry mortar in floor; mechanical properties; floor impact sound insulation;
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