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HELA, R. DOMANSKAYA, I. KAPUSTIN, F.
Original Title
Concrete recycling as a source of polyfractional mineral raw materials
Type
conference paper
Language
English
Original Abstract
The problems of concrete recycling as a complex poly-reinforced composite characterized by unstable composition and properties are discussed. The peculiarity of recycling concrete scrap is that its return to the production cycle can be carried out in the form of different products: coarse aggregate (recycled aggregate), fine aggregate (sand from crushed concrete), as well as in the form of a dust-like fraction. It is shown that aggregates made of crushed concrete are inferior to natural analogues due to the presence of cement-sand mortar in their composition. Given the growing threat of depletion of natural resources, it seems appropriate to consider construction waste not only as secondary resources for the production of concrete and mortars, but also more widely: as a promising technogenic source of polymineral raw materials, including for firing technologies.
Keywords
Cement-sand mortar; Concrete scrap; Dust-like fraction; Frost resistance; Grain composition; Large and small aggregate; Strength
Authors
HELA, R.; DOMANSKAYA, I.; KAPUSTIN, F.
Released
1. 1. 2020
Publisher
Trans Tech Publications Ltd
Location
Switzerland
ISBN
9783035716689
Book
26th International Conference Concrete Days
1012-0394
Periodical
Solid State Phenomena
Number
309
State
Swiss Confederation
Pages from
126
Pages to
131
Pages count
6
URL
https://www.scientific.net/SSP.309.126
BibTex
@inproceedings{BUT177166, author="Rudolf {Hela} and Irina K. {Domanskaya} and Fedor L. {Kapustin}", title="Concrete recycling as a source of polyfractional mineral raw materials", booktitle="26th International Conference Concrete Days", year="2020", journal="Solid State Phenomena", number="309", pages="126--131", publisher="Trans Tech Publications Ltd", address="Switzerland", doi="10.4028/www.scientific.net/SSP.309.126", isbn="9783035716689", issn="1012-0394", url="https://www.scientific.net/SSP.309.126" }