Experts from NArFU DeConcrete team - Ayzenshtadt, A. M. Drozdyuk, T. A. Danilov, V. E. Frolova, M. A Garamov, G. A. prepared and submitted publication: Surface activity of concrete waste powders. Source: NANOTECHNOLOGIES IN CONSTRUCTION-A SCIENTIFIC INTERNET-JOURNAL Volume: 13 Issue: 2 Pages: 108-116 DOI: 10.15828/2075-8545-2021-13-2-108-116 Published: 2021
The objects of research in this work were fine powders obtained by mechanical grinding of lightweight (sample 1) and heavy (sample 2) concrete of a five-story residential panel house built in 1979. The elemental composition and specific surface area of the samples were determined, thermogravimetry of the studied powder systems was carried out, the surface tension of the experimental samples and the dispersion and polarization components of this indicator were determined by the OVRK method.
The research was carried out on the unique scientific equipment "Physical Chemistry of Surfaces of NanoDispersed Systems" with the financial support from Kolarctic project no. KO4068 "DeConcrete: Eco-efficient Arctic Technologies Cooperation".
Experts from NArFU DeConcrete team (Tatiana Drozdyuk, Arkady Ayzenshtadt) prepared and submitted publication “Effectiveness Evaluation Criteria of Using Fine Powders of Secondary Concrete as a Component of Composite Binder”. It was experimentally shown that fine powders of secondary concrete are effective as components of CB (Composite Binder), but it is necessary to pre-activate concrete waste to its optimal parameters. The symbioses of changes in such parameters as surface activity, specific heat of the hydration reaction of highly dispersed concrete fractions, and compressive strength of samples of fine-grained concrete using CB, which contains a highly dispersed fraction of secondary concrete, is established.
This publication will be online 11.01.2021. Materials Science Forum. ISSN: 1662-9752, Vol. 1017, pp 163-171. Accepted: 2020-09-12
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DeConcrete project team prepared the abstract “LIFE CYCLE: COMPARATIVE APPROACH OF EUROPEAN COUNTRIES” for the
XXth Anniversary International Scientific GeoConference SGEM 2020 (Section "Green buildings technologies and materials") that will take place 16-25 August 2020 in Bulgaria, Albena.
This article is indexed in SCOPUS
Volume 2020-August, Issue 6.1, 2020, Pages 375-38220th International Multidisciplinary Scientific Geoconference: Nano, Bio and Green - Technologies for a Sustainable Future, SGEM 2020; Albena; Bulgaria; 18 August 2020 до 24 August 2020; Код 166363
Life cycle: Comparative approach of European countries (Conference Paper)
- aNorthern Arctic Federal University, Russian Federation
- bUniversity of Oulu, Finland
- cThe Arctic University of Norway, Norway