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STRENGTH AND DEFORMABILITY OF STRUCTURAL ELEMENTS OF TRANSPORT FACILITIES ON THE BASIS OF FINE-GRAINED FIBROUS STEEL SLAG CONCRETE

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Author(s): R. N. Chernousov | V. A. Kozlov | B. A. Bondarev

Journal: Scientific Herald of the Voronezh State University of Architecture and Civil Engineering
ISSN 2075-0811

Volume: 4;
Issue: 4;
Start page: 69;
Date: 2011;
Original page

Keywords: fibrous steel slag concrete | structural elements of transport facilities | shrinkage deformations | compression strength | tensile strength | low cycle fatigue | deformability

ABSTRACT
Problem statement. Application of steel fibrous concrete in structures of transport facilities providesfor their reliable and durable operation, however, along with the indisputable advantages,steel fibrous concrete has significant drawback. Its application in transport construction is very expensive.The use of cast slag crushed stone screenings, along with fibers from waste products oflocal factories, as a filler of concrete matrix will significantly reduce the costs of production oftransport facility structures and their elements with the use of steel fibrous concrete.Results and conclusions. According to the results of experimental studies formulae for practical estimationof shrinkage deformations of concrete matrix of fibrous steel slag concrete are obtained. Theanalytical relationships for fibrous steel slag concrete are derived. These relationships involve ultimatecompression and tensile strength, increase in compression and bending strength with time, longtermcompression strength, low cycle tensile fatigue, wearability. Based on experimental studies theuse of fibrous steel slag concrete in structural elements of transport facilities is suggested.
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