View More View Less
  • 1 Faculty of Technology, Bulevar Cara Lazara 1, 21000, Novi Sad, Serbia
  • | 2 Faculty of Sciences, Trg Dositeja Obradovica 3, 21000, Novi Sad, Serbia
  • | 3 Faculty of Technical Sciences, Trg Dositeja Obradovica 6, 21000, Novi Sad, Serbia
Restricted access

Abstract

The article presents the results of physical and chemical properties of lightweight aggregates (LWA) obtained by the thermal treatments of raw composition based on fly ash, supplied by electric plants from Serbia. The production process of LWA consists of raw material preparation, plastic shaping–extrusion, granulation, and thermal treatment at three temperatures: 1100, 1150, and 1200 °C. The final firing temperature (T = 1150 °C) is chosen based on the mechanical and physical properties of the designed aggregates. The particle-size distribution of the LWAs is unimodal (d ≈ 16 mm) while the density value varies from 0.98 to 1.99 g/cm3. The water absorption values are determined by use of two methods: 24 h of soaking in cold water and 5 h of boiling. The thermal conductivity of unbound, fired LWA particles is determined by measuring the amount of axially transferred heat in the stationary state. The obtained value of the LWA thermal conductivity (λ = 0.0872 W/mK, T = 1150 °C) is suitable for the production of structural concrete blocks with improved thermal insulating properties. Because of their high-porosity and -compressive strength values, the designed LWA could be used instead of the conventional aggregates in the production of concrete blocks. Consequently, a real valorization of the waste material such as fly ash in Serbia was established.

  • 1. Yao, Y, Yang, DW, Zeng, JL, Sun, LX, Li, WJ 2011 Influences of fly ash and fluorgypsum on the hydration heat and compressive strength of cement. J Therm Anal Calorim 106:869874 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 2. Joshi, C, Lothia, RP 1997 Fly ash in concrete: production, properties and uses. Advances in concrete technology Gordon and Breach Science Publishers New York.

    • Search Google Scholar
    • Export Citation
  • 3. Nochaiya, T, Wongkeo, W, Pimraksa, K, Chaipanich, A 2010 Microstructural, physical, and thermal analyses of Portland cement–fly ash–calcium hydroxide blended pastes. J Therm Anal Calorim 100:101108 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Bijen, JMJM 1986 Manufacturing processes of artificial lightweight aggregates from fly ash. Int J Cem Compos Lightweight Concr. 8 3 191199 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Ramamurthy, K, Harikrishnan, KI 2006 Influence of binders on properties of sintered fly ash aggregate. Cem Concr Compos. 28:3338 .

  • 6. Verma, CL, Handa, SK, Jain, SK, Yadav, RK 1998 Techno-commercial perspective study for sintered fly ash lightweight aggregates in India. Constr Build Mater 12:341346 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Yang, CC, Haung, R 1998 Approximate strength of lightweight aggregate using micromechanics method. Adv Cem Based Mater 7:133138 .

  • 8. Majchhrzak-Kuceba I . Thermogravimetry applied to characterization of fly ash-based MCM-41 mesoporous materials. J Therm Anal Calorim. 2011. doi: .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Neville, AM 1995 Properties of concrete 4 Longman Harlow.

  • 10. El-Gamal SMA , Hashem FS, Amin MS. Thermal resistance of hardened cement pastes containing vermiculite and expanded vermiculite. J Therm Anal Calorim. 2011. doi: .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Li, Y, Wu, D, Zhang, J, Chang, L, Wu, D, Fang, Z, Shi, Y 2000 Measurement and statistics of single pellet mechanical strength of differently shaped catalysts. Powder Technol 113:176184 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Hamdhan IN , Clarke BG. Determination of thermal conductivity of coarse and fine sand soils. In: Proceedings of World Geothermal Congress 2010, Bali, April 2010.

    • Search Google Scholar
    • Export Citation
  • 13. Komljenović, M, Petrašinović-Stojkanović, Lj, Baščarević, Z, Jovanović, N, Rosić, A 2009 Fly ash as the potetntional raw mixture component for Portland cement clinker synthesis. J Therm Anal Calorim 96:363368 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Wardlaw, NC, McKellar, M, Yu, L 1988 Pore and throat size distributions determined by mercury porosimetry and direct observation. Carbonate Evaporites 3:115 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 15. Kamseu E , Ceron B, Tobias H, Leonelli E, Bignozzi MC, Muscio A, Libbra A. Insulating behavior of metakaolin-based geopolymer materials assess with heat flux mater and laser flash techniques. J Therm Anal Calorim. 2011. doi: .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Rice RW . Porosity of ceramics. Marcel Dekker Inc., Berlin; 1998.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

For subscription options, please visit the website of Springer.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jun 2021 0 0 0
Jul 2021 3 0 0
Aug 2021 0 0 0
Sep 2021 7 0 0
Oct 2021 3 0 0
Nov 2021 0 0 0
Dec 2021 0 0 0