Review article

Effect of density of cement-sand matrix and type of steel fibers on the density and elasticity modulus of steel fiber reinforced concrete at heating during the fire

UDC: 

666.97.620.1

DOI: 

10.23968/1999-5571-2020-17-5-147-154

Pages: 

147-154

Annotation: 

The paper considers the results of the impact of high temperatures during the fire on changes in the density and elasticity modulus of steel fiber reinforced concrete (SFRC) at different values of density of the cement-sand matrix corresponding to its flexural strength of 5.0 and 8.5 MPa. It is shown that in the temperature range from 20 to 1100 °C, the diagrams «Density of steel fiber reinforced concrete - heating temperature» are linear and their shape does not depend on the type of fiber and its content in steel fiber reinforced concrete. The results of the performed studies allow determining the change in the elastic modulus of the SFRC after heating.

Authors: 

Dorf V. A. JSC «Institute «Orgenergostroy» Moscow, Russia

Krasnovskij R. O. JSC «Institute «Orgenergostroy» Moscow, Russia

Kapustin D. E. JSC «Institute «Orgenergostroy» Moscow, Russia

Sultygova P. S. Ingush State University Magas, Russia

Turkin V. V. JSC «Institute «Orgenergostroy» Moscow, Russia

Travkin P. V. JSC «Institute «Orgenergostroy» Moscow, Russia

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