Studies of the Relationship between Morphology and Pozzolanic Activity of Different Micro Fillers for HPC

Linda Krage, Diana Bajare, Aleksandrs Korjakins, Janina Setina, Inna Juhnevica, Inta Kirilovica

Abstract


The given research is devoted to the studies of morphology, particle size and pozzolanic activity of different supplementary cementing materials (SCM) – thermally treated clays as well as waste products – coal ash, waste glass powder, timber and barley ashes. Different properties of SCM have been analysed: specific surface area, surface morphology, particle size distribution, chemical composition and lime-combining capacity in the reaction with Ca(OH)2. The obtained results have indicated that micro additives with larger specific surface are more reactive.

Keywords:
Cementing materials, micro fillers, morphology, pozzolanic activity, surface area

Full Text:

 PDF

References


Li, Z. Advanced Concrete Technology. New Jersey: John Wiley & Sons, Inc., Hoboken, 2011, p 506. http://dx.doi.org/10.1002/9780470950067

Day, K.W. Concrete Mix Design, Quality Control and Specification. 3rd ed., Taylor & Francis, 2006, p 217.

Aitcin, P.-C. Binders for Durable and Sustainable Concrete. In: Modern Concrete Technology 16. Taylor & Francis, New York, 2008, pp. 273–313.

Lea's Chemistry of Cement and Concrete. Ed. Hewlett, P.C., Elsevier, 2006

Kara, P., Korjakins, A. Concrete with fluorescent waste glass suspension. In: Proceedings of 8th International Conference: Concrete in the Low Carbon Era 2012, Dundee, UK, 2012, pp. 719–728.

Vittori, C., Cereseto, A. Solubilizzazione progressiva della silice e R2O3 dei materiali pozzolanici sotto l’azione della calce per valutazione del valore idaulico dei materiali stessi. La Chimica e L’Industria, 1935

Setina, J., Krage, L., Juhnevica, I., Skripkina, T., Shakhmenko, G. The Influence of Different Pozzolanic Admixtures on Structure and Properties of Concrete. In: Proceedings of International Conference on Building Materials "18. ibausil", Weimar, Germany, 2012

Massazza, M.F. Structure of pozzolana and fly-ash and the hydratation of pozzolanic and fly ash cements. In: Proceedings of 7th International Congress on chemistry of cement, vol. 4, Paris, France, 1980, pp. 85–91.

Massazza, M.F., Costa, U. Aspects of the pozzolanic activity and properties of pozzolanic cements. Il Cemento 76, 1976, pp. 3–18.




DOI: 10.7250/msac.2014.005

Copyright (c)