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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

THE ISSUES OF RECYCLING CONCRETE SCRAP WASTE FOR OBTAINING THE COARSE AGGREGATE IN THE PRODUCTION OF REINFORCED CONCRETE BENDING ELEMENTS

Vestnik MGSU 7/2016
  • Bedov Anatoliy Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Professor, Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Tkach Evgeniya Vladimirovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Department of Construction Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pakhratdinov Alpamys Abdirashitovich - Moscow State University of Civil Engineering (National Research University) (MGSU) postgraduate student, Department of Construction Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 91-100

This article presents the results of research on one of the possible ways of recycling the concrete scrap waste to obtain environmentally friendly building materials on its basis, in particular bending elements. According to test results of the samples of concrete lintels the theoretical moment of cracking and breaking load was determined. The comparative studies on the series of prototypes showed that under short-time loads the deformation of samples based on secondary crushed stone is almost identical to the deformation of specimens based on natural gravel. In this case the bearing capacity of two series of prototypes of reinforced concrete lintels showed the average difference between each other of not more than 3.4 %. The proposed concrete mix based on crushed chip made of recycled waste of concrete scrap of the fractions from 5 to 10 and from 10 to 20 mm allows producing heavy concrete of the required strength and deformability characteristics, which is essential in creating products and structures with high and reliable performance in difficult conditions.

DOI: 10.22227/1997-0935.2016.7.91-100

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