Search academic texts

Information × Registration Number 0220U100412, 0117U001153 , R & D reports Title The study of physical and chemical nanoprocesses of structural relaxation and aging in high-strength concretes with complex modifiers of the new generation and methods of their diagnostics popup.stage_title Head Novikov Serhii M., Registration Date 17-01-2020 Organization Yuriy Fedkovych Chernivtsi National University popup.description2 The possibility of obtaining highly functional concretes with compressive strength exceeding 120 MPa, based on multimodal portlandcements, modified with ultra-fine aluminosilicate and silica supplements, taking into account the peculiarities of the influence of particle size distribution and surface energy of the particles of each component on the rheological and physical-mechanical properties, is substantiated and experimentally confirmed. The patterns of structure formation of high-performance concretes under different temperature conditions, which consist in the formation of an ordered, low-porous, fine-crystalline microstructure of the cementing matrix, including due to pozzolanic reactions in the non-clinker part of the binder to form an additional amount of low-basic calcium hydrosilicates, are investigated. The laboratory model of the installation for diagnostics of concrete hardening was developed and manufactured. The synergistic effect of ultra-fine mineral additives of different groups and superplasticizers on the technological and operational properties of highly functional concretes has been determined. Product Description popup.authors Gudymenko Aleksandr Yo. Gutsuliak Ivan I. Zaplitnyy Ruslan A. Kotsyubynsky Andriy O. Kuzmin Andriy R. Lеka Dmitry R. Mykytiuk Taras I. Oliynych-Lisyuk Alla V. Raranskii Nikolai D. Romankevich Vladimir F. Safryuk Nadija V. Solodkyi Mykola S. Sumaryuk Alexander V. Taschuk Olexandr Yu. Tkach Vasiliy M. Tkach Oksana O. Yanchuk Ivanna V. popup.nrat_date 2020-04-02 Close