| Issue |
MATEC Web Conf.
Volume 138, 2017
The 6th International Conference of Euro Asia Civil Engineering Forum (EACEF 2017)
|
|
|---|---|---|
| Article Number | 03012 | |
| Number of page(s) | 8 | |
| Section | 3-Concrete Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201713803012 | |
| Published online | 30 December 2017 | |
Strength Properties and Micro-structure of Steel Slag Based Hardened Cementitious Composite with Graphene Oxide
1 Ph.D student , Department of Architectural Engineering, 1223-24 Cheonan-daero, South Korea
2 Professor, Ph.D, Department of Architectural Engineering, 1223-24 Cheonan-daero, South Korea
* Corresponding author: jmkim@kongjul.ac.kr
For the rapid hardening of concrete, various types of calcium aluminate composite have been used for special purpose as shotcrete or rapid repairing in construction field. However, high cost of calcium aluminates is demerit in the point of expanding usage. In recent years, a new binder for rapid hardening has been introduced as the pulverized ladle furnace slag (RC-LFS) with main components of C12A7 and β-C2S. Like other traditional cementitious materials, it’s use will preserve natural resources and has high environmental advantage with economic efficiency, by transferring the industry byproducts into high value materials. Even though flake state, graphene oxide has high tensile strength and electric conductivity. Then, it can be used to increase strength and thermal properties of concrete and its efficiency depends on the dispersion in the cement matrix. In this paper, we used graphene oxide for increasing the engineering properties in RC-LFS concrete with GGBFS. Test results showed that the 0.05w% of graphene oxide increase the flexural strength to 26% and compressive strength to 16%.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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