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ELABORATION OF THE EXPERIMENTAL APPROACH TO DETERMINATION OF MEASURE OF THE CREEP OF FINE-GRAINED HIGH-STRENGTH CONCRETE AND HIGH-STRENGTH STEEL FIBER CONCRETE WITH A RATIONAL FIBER CONTENT

Abstract

The measures of the creep of high-strength steel fiber concrete and the matrix of fine-grained high-strength concrete have been determined for different ages of loading (7 days, 28 days and 100 days) on the basis of elaboration of the experimental method applied to various levels of load. The correction of the formula of Prokopovich I. E. and Zastava M. M. to describe the linear creep measure applied to a new class of fine-grained high-strength concrete and steel-fiber concrete; the development of the experimental method of Prokopovich I. E. and Zastava M. M. in the case of determining the nonlinear creep measures for a new class of MVB and VSFB. The proposed dependence for the description of creep measures agrees well with the experimental data.

About the Authors

M. V. Stepanov
SRIBP RAACS
Russian Federation


G. A. Moiseenko
SRIBP RAACS
Russian Federation


References

1. Карпенко Н.И., Каприелов С.С., Петров А.Н., Безгодов И.М., Моисеенко Г.А., Степанов М.В., Чилин И.А. Исследование физико-механических и реологических свойств высокопрочных сталефибробетонов из самоуплотняющихся смесей. Фундаментальные, поисковые и прикладные исследования РААСН по научному обеспечению развития архитектуры, градостроительства и строительной отрасли Российской Федерации в 2017 году, том 2. Москва, 2018. С. 237-246.

2. Каприелов С.С., Шейнфельд А.В., Кардумян Г.С. Новые модифицированные бетоны // М., ООО «Типография Парадиз». - 2010. - С. 258.

3. Прокопович И.Е., Застава М.М. О расчётном определении предельных длительных деформаций тяжелого бетона. Бетон и железобетон, №5, 1972, стр. 35-37.

4. ГОСТ 24544-81 Бетоны. Методы определения деформаций усадки и ползучести.


Review

For citations:


Stepanov M.V., Moiseenko G.A. ELABORATION OF THE EXPERIMENTAL APPROACH TO DETERMINATION OF MEASURE OF THE CREEP OF FINE-GRAINED HIGH-STRENGTH CONCRETE AND HIGH-STRENGTH STEEL FIBER CONCRETE WITH A RATIONAL FIBER CONTENT. Building and Reconstruction. 2018;(3):98-104. (In Russ.)

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ISSN 2073-7416 (Print)