INFLUENCE OF MULTILAYER NANOTUBES ON FRACTURE TOUGHNESS
Abstract
Experimental research results of the stress intensity factor at normal separation, КIC, and cross-section shift, KIIC, respectively, of high-strength concrete are presented. Research on the specific power changing inputs on quasi-static destruction is carried out.
The compact structure on the basis of the Portland cement modified with carbon nanodispersed systems has been studied. Carbon nanotubes Graphistrength by «Arkema» dispersed into the hydrodynamic plant in the solution of surface-active agent (SAA) Polyplast SP-1 are used as modifying additives. An increase of the cross-breaking strength of a fine grain concrete up to 45,1 % and of the compressing strength up to 96,8 % was observed. The increase of concrete strength is related to morphological changes of new crystalline hydrate formations providing a less defective structure of cement matrix with high density.
About the Authors
B. M. Khroustalev
Belarusian National Technical University
Belarus
Belarus
S. N. Leonovich
Belarusian National Technical University
Belarus
Belarus
J. Eberhardsteiner
Vienna University оf Technology
Austria
Institute for Mechanics of Materials and Structures
Austria
Institute for Mechanics of Materials and Structures
G. I. Yakovlev
Izhevsk State Technical University, Izhevsk, Russia
Russian Federation
Russian Federation
G. N. Pervushin
Izhevsk State Technical University, Izhevsk, Russia
Russian Federation
Russian Federation
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Review
For citations:
Khroustalev B.M., Leonovich S.N., Eberhardsteiner J., Yakovlev G.I., Pervushin G.N. INFLUENCE OF MULTILAYER NANOTUBES ON FRACTURE TOUGHNESS. Science & Technique. 2012;(4):52-57.
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