VSM / Efficiency / Impact strength

Impact strength

Compared to static strength, impact, or dynamic, strength is more dependant on initial defects in concrete structure due to reduced opportunities of strains redistribution caused by retardation of microplastic deformations.

By influencing structure-formation processes VSM fiber contributes to reduction of internal strain and the number and size of internal defects in concrete, thus preventing their further propagation. Besides, VSM fiber has a certain effect at the loading and crack-formation stage, preventing growth and opening of cracks.

These facts produce a considerable effect on enhancing impact (dynamic) strength of concrete. Calculations and test results confirm up to 500% increase in impact strength of such concretes.

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