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Engineering performance evaluation of mortar with EOS (electric arc furnace oxidizing slag) as fine aggregate

Title
Engineering performance evaluation of mortar with EOS (electric arc furnace oxidizing slag) as fine aggregate
Author
이한승
Keywords
EOS (electric arc furnace oxidizing slag); β-C2S; Cement mortar; ERS (electric arc furnace reduction slag); Length rate of change
Issue Date
2018-11
Publisher
SPRINGER
Citation
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT, Page. 1-9
Abstract
Electric arc furnace oxidizing slag (EOS), in the fine aggregate form, can effectively be utilized as a construction material. However, its engineering properties vary with the manufacturing processes employed and the producing district, thereby causing observed differences in material performance. In this study, EOS was obtained from steel manufacturing plants in South Korea, and engineering properties of standalone EOS, as well as in combination with cement mortar were separately evaluated. Test results demonstrate that EOS primarily comprises CaO, SiO2, and FeO in combination with 18.2% larnite, which possesses β-C2S crystal structure with a similar cement mineral. The EOS mortar combination demonstrated increasing compressive strength with an increase in EOS content due to the effect of a considerable amount of β-C2S present in EOS. The EOS-based mortar with electric arc furnace reduction slag (ERS) demonstrated unsatisfactory results in accordance with a criterion set for the length rate of change. This implies that more consideration is required toward the use of mixed ERS and EOS in cement mortars due to the swelling effect of ERS on dimensional stability.
URI
https://link.springer.com/article/10.1007%2Fs10163-018-0812-8https://repository.hanyang.ac.kr/handle/20.500.11754/98937
ISSN
1611-8227; 1438-4957
DOI
10.1007/s10163-018-0812-8
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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