Fabrication of Foamed Glass and Its Properties Using Recycled Blast Furnace Slag

Ju Eun Park; Soon-il Kwon; Seunguk Song; Jinho Kim; Ji-Sun Lee

doi:10.3740/MRSK.2025.35.12.597

All Issue

2025 Vol.35, Issue 12 Preview Page Next Page

Research Paper

Fabrication of Foamed Glass and Its Properties Using Recycled Blast Furnace Slag 고로 슬래그 재활용 원료를 이용한 발포유리 제조 및 그의 특성

27 December 2025. pp. 597-602

PDF XML

Abstract

In this study, foamed glass was fabricated by adjusting the final heat treatment temperature. The heat treatment temperatures ranged from 900 °C to 1,100 °C at 50 °C intervals. Blast furnace slag (BFS) powder was mixed with foaming agent such as CaCO₃, Ca₃(PO₄)₂, Na₂SiO₃ and NaOH, pressed under compression, then heat treated to form a porous and stable glass structure. Their optical, thermal, and physical properties, including thermal coefficient, density, glass transition temperature (T_g) and X-ray diffraction patterns, were investigated. As the heat treatment temperature increased, the apparent density decreased from 1.44 g/cm³ to 1.03 g/cm³ while the porosity increased from 46.03 % to 58.89 %. Thermal coefficient decreased from 9.997 × 10^-6 /K to 9.417 × 10^-6 /K. The main XRD peak gradually shifted toward a lower angle, indicating an expansion of the glass network structure. Results showed that foamed glass based on BFS, developed with a porous structure, can be used as an effective thermal insulation material, suggesting the potential for the commercial utilization of slag.

Keywords

blast furnace slag

foam glass

slag-based glass

foam glass fabrication

thermal expansion

References

J.-M. Park, T.-W. Ohm and J.-K. Park, J. Korean Inst. Resour. Recycl., 19, 49 (2010).

J.-S. Lee, S.-W. Kim, Y.-H. Ra, T.-Y. Lim, Y. Lee, D.-W. Jeon and J.-H. Kim, Korean J. Mater. Res., 28, 763 (2018).

10.3740/MRSK.2018.28.12.763

E. A. Yatsenko, B. M. Goltsman, V. A. Smolii and A. S. Kosarev, in Proceedings of 2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC) (Rome, June 2015), pp. 819-823.

L. Ding, W. Ning, Q. Wang, D. Shi and L. Luo, Mater. Lett., 141, 327 (2015).

10.1016/j.matlet.2014.11.122

G. A. Khater, A. A. El-Kheshen and M. M. Farag, Mater. Chem. Phys., 311, 128564 (2024).

10.1016/j.matchemphys.2023.128564

H. W. Go, S.-Y. Moon, H. S. Kim, S. Y. Jang, E. B. Kang and J. C. Joo, J. Korean Soc. Environ. Eng., 44, 603 (2022).

10.4491/KSEE.2022.44.12.603

L. Thomsen, L. R. Jensen, Y. Yue and M. B. Østergaard, J. Eur. Ceram. Soc., 44, 7936 (2024).

10.1016/j.jeurceramsoc.2024.05.079

T.-Y. Lim, H.-Y. Ku, J. Hwang, J.-H. Kim and J.-K. Kim, J. Korean Cryst. Growth Cryst. Technol., 21, 266 (2011).

10.6111/JKCGCT.2011.21.6.266

C.-T. Lee, J. Korean Ind. Eng. Chem., 16, 440 (2005).

C.-T. Lee, J. S. Lee, M. H. Jang and S. Y. Lee, J. Korean Ind. Eng. Chem., 20, 266 (2009).

T.-Y. Lim, S.-S. Jeong, J. Hwang and J.-H. Kim, J. Korean Cryst. Growth Cryst. Technol., 20, 43 (2010).

J. Ahmad, K. J. Kontoleon, A. Majdi, M. T. Naqash, A. F. Deifalla, N. B. Kalha, H. F. Isleem and S. M. A. Qaidi, Sustainability, 14, 8783 (2022).

10.3390/su14148783

K. S. P. Karunadasa, C. H. Manoratne, H. M. T. G. A. Pitawala and R. M. G. Rajapakse, J. Phys. Chem. Solids, 134, 21 (2019).

10.1016/j.jpcs.2019.05.023

J. König, R. R. Petersen and Y. Z. Yue, J. Eur. Ceram. Soc., 34, 1591 (2014).

10.1016/j.jeurceramsoc.2013.12.020

M. L. Jalaluddin, U. A.-A. Azlan, M. W. A. Rashid, N. Tamin and M. N. Masri, AIMS Mater. Sci., 11, 634 (2024).

10.3934/matersci.2024033

Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 35
No :12
Pages :597-602
Received Date : 2025-10-14
Revised Date : 2025-11-11
Accepted Date : 2025-11-19
DOI :https://doi.org/10.3740/MRSK.2025.35.12.597

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

All Issue