Recycling of tailings from Korea Molybdenum Corporation as admixture for high-fluidity concrete.
The main objective of this study is to develop an eco-friendly and a large recycling technique of flotation Tailings from korea (TK) from metal mines as construction materials such as admixtures for high-fluidity concrete (HFC). TK used in this study was obtained from the Korea Molybdenum Corporation in operation. TK was used as the alternative material to adjust flowability and viscosity of HFC in the form of powder agent which enables adjustment of concrete compressive strength. In this study, we have performed concrete rheological tests and concrete flowability tests to obtain the quality characteristics of TK for using as the admixture in producing HFC. The results indicated that the adequate mix ratio of cement to TK should be 8:2 (vol%). It is more effective to use the TK as admixture to control flowability, viscosity and strength of HFC than the normal concrete. It was found that TK could be recycled construction materials in bulk such as admixture for HFC, in terms of the economic and eco-friendly aspects.
Department of Biological & Environmental Engineering, Semyung University, Chungbuk, Republic of Korea.
Moon Young
MY
Jung
Yun Wang
YW
Choi
Jae Gwon
JG
Jeong
D019245:Compressive Strength; D003252:Construction Materials; D008906:Mining; D008982:Molybdenum; D059027:Recycling; D056910:Republic of Korea; D013718:Tensile Strength; D013997:Time Factors
D008982:Molybdenum