Mater.Phys.Mech.(MPM)
No 1, Vol. 13, 2012, pages 77-84

CARBON NANOFIBER/CLINKER HYBRID MATERIAL AS A HIGHLY
EFFICIENT MODIFICATOR OF MORTAR MECHANICAL PROPERTIES

Larisa I. Nasibulina, Ilya V. Anoshkin, Alexander V. Semencha, Oleg V. Tolochko,
Jari E. M. Malm, Maarit J. Karppinen, Albert G. Nasibulin, Esko I. Kauppinen

Abstract

Carbon nanofiber (CNF) / clinker hybrid material was prepared by a direct synthesis of CNFs on the surface of clinker particles in a fluidized bed reactor using acetylene and carbon dioxide gases at the temperature of 550°C. This allowed us to achieve a good dispersion of CNFs in a clinker matrix and to prepare strong mortar composite. Optimal concentration of the CNFs to enhance mechanical properties of the mortar was found to be around 0.4%, which led to more than 2.5-fold increase in the compressive strength.

Keywords: cement; reinforcement; compressive strength; synthesis

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