View More View Less
  • 1 Faculty of Science, Ain Shams University, Cairo, Egypt
  • | 2 Faculty of Science, Al-Azhar University, Cairo, Egypt
  • | 3 Faculty of Science, 7th October University, Misurata, Libya
Restricted access

Abstract

Pozzolanic cement blends were prepared by the partial substitution of ordinary Portland cement (OPC) with different percentages of burnt clay (BC), Libyan clay fired at 700 °C, of 10, 20, and 30%. The pastes were made using an initial water/solid ratio of 0.30 by mass of each cement blend and hydrated for 1, 3, 7, 28, and 90 days. The pozzolanic OPC–BC blend containing 30% BC was also admixed with 2.5 and 5% silica fume (SF) to improve the physicomechanical characteristics. The hardened pozzolanic cement pastes were subjected to compressive strength and hydration kinetics tests. The results of compressive strength indicated slightly higher values for the paste made of OPC–BC blend containing 10% BC The results of DSC and XRD studies indicated the formation and later the stabilization of calcium silicates hydrates (CSH) and calcium aluminosilicate hydrates (C3ASH4 and C2ASH8) as the main hydration products in addition to free calcium hydroxide (CH). Scanning electron microscopic (SEM) examination revealed that the pozzolanic cement pastes made of OPC–BC mixes possesses a denser structure than that of the neat OPC paste. Furthermore, the addition of SF resulted in a further densification of the microstructure of the hardened OPC–BC–SF pastes; this was reflected on the observed improvement in the compressive strength values at all ages of hydration.

  • 1. Hewlett, PO. Lea's chemistry of cement and concrete. 4 London: Edward Arnold; 1998.

  • 2. Cheng-Yi, H, Feldman, RF. Hydration reactions in Portland cement–silica fume blends. Cem Concr Res. 1985;15:585592. .

  • 3. Toutanji, HA, El-Korchi, T. The influence of silica fume on the compressive strength of cement paste and mortar. Cem Concr Res. 1995;25: 7 15911602. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Morsy, MS, Abo-El-Enein, SA, Hanna, GB. Microstructure and hydration characteristics of artificial pozzolana-cement pastes containing burnt kaolinite clay. Cem Concr Res. 1997;27: 9 13071312. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Sha, W, Pereira, GB. Differential scanning calorimetry study of ordinary Portland cement paste containing metakaolin and theoretical approach of activity. Cem Concr Res. 2001;23:455461. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6. El-Shimy, E, Abo-El-Enein, SA, El-Didamony, H, Osman, TA. Physico-chemical and thermal characteristics of lime–silica fume pastes. J Therm Anal Calorim. 2000;60:549556. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Mostafa, NY, El-Hemaly, SAS, Al-Wakeel, EI, El-Korashy, SA, Brown, PW. Characterization and evaluation of the pozzolanic activity of Egyptian industrial by-products. I. Silica fume and dealuminated kaolin. Cem Concr Res. 2001;31:467474. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8. Zelic, J, Rusic, D, Veza, D, Krstulovic, R. The role of silica fume in the kinetics and mechanisms during the early stage of cement hydration. Cem Concr Res. 2000;30:16551662. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Sabir, BB, Wild, S, Bai, J. Metakaolin and calcined clays as pozzolans for concrete: a review. Cem Concr Res. 2001;23:441454. .

  • 10. Karakeci, AY, Temiz, H. An investigation on microstructure of cement paste containing fly ash and silica fume. Cem Concr Res. 2002;32:11311132. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Li, L, Sun, H, LI, C. The comparison between alkali-activated slag (Si+Ca) and metakaolin (Si+Al) cements. Cem Concr Res. 2010;40:13411349. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Uzal, B, Turanli, L, Yucel, H, Goncuoglu, MC, Culfaz, A. Pozzolanic activity of clinoptilolite: a comparative study with silica fume, fly ash and a non-zeolitic natural pozzolan. Cem Concr Res. 2010;40:398404. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13. Elimbi, A, Tchakoute, HK, Njopwouo, D. Effects of calcination temperature of kaolinite clays on the properties of geopolymer cements. Constr Build Mater. 2011;25:28052812. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Abo-El-Enein, SA, Daimon, M, Ohsawa, S, Kondo, R. Hydration of low porosity slag–lime pastes. Cem Concr Res. 1974;4:299312. .

  • 15. Kondo, R, Abo-El-Enien, SA, Daimon, M. Kinetics and mechanisms of hydrothermal reaction of granulated blastfurnace slag. Bull Chem Soc Jpn. 1975;48:222226. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Abo-El-Enein, SA, Abbas, R, Ezzat, YE. Properties and durability of metakaolin blended cements. Materiales de Construccion. 2010;60: 299 2135. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17. Singh, M, Garg, M. Reactive pozzolana from Indian clays—their use in cement mortars. Cem Concr Res. 2006;36:19031907. .

  • 18. Said-Mansour, M, Kadri, E, Kenai, S, Ghrici, M, Bennaceur, R. Influence of calcined kaolin on mortar properties. Constr Build Mater. 2011;25:22752282. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19. Pera, J, Boumaza, R, Ambroise, J. Development of a pozzolanic pigment from red mud. Cem Concr Res. 1997;27: 10 15131522. .

  • 20. Mitchell, DRG, Hinczak, I, Day, RA. Interaction of silica fume with calcium hydroxide solutions and hydrated cement pastes. Cem Concr Res. 1998;28: 11 15711584. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21. Rao, GA. Investigations on the performance of silica fume-incorporated cement pastes and mortars. Cem Concr Res. 2003;33:17651770. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22. Morsy, MS, Galal, AF, Abo-El-Enein, SA. Effect of temperature on phase composition and microstructure of artificial pozzolana-cement pastes containing burnt kaolinite clay. Cem Concr Res. 1998;28: 8 11571163. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23. Klimesch, DS, Ray, A, Guerbois, J-P. Differential scanning calorimetry evaluation of autoclaved cement based building materials made with construction and demolition waste. Thermochim Acta. 2002;389:195198. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 24. Cong, X, Kirkpatrich, RJ. Effects of the temperature and relative humidity on the structure of C-S-H gel. Cem Concr Res. 1995;25: 6 12371245. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 25. Hidalgo, A, Garcia, JL, Alonso, MC, Fernandez, L, Andrade, C. Microstructure development in mixes of calcium aluminate cement with silica fume or fly ash. J Therm Anal Calorim. 2009;96: 2 335345. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 26. Chaipanich, A, Nochaiya, T. Thermal analysis and microstructure of Portland cement–fly ash–silica fume pastes. J Therm Anal Calorim. 2010;99:487493. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 27. Giergiczny, Z. Effect of some additives on the reactions in fly ash–Ca(OH)2 system. J Therm Anal Calorim. 2004;76:747754. .

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

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 29. Amer, AA. Thermal analysis of hydrated fly ash–lime pastes. J Therm Anal Calorim. 1998;54:837843. .

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)