Nanotechnology for military applications: A survey of recent research in Military technical institute

Simić, Danica; Marjanović, Milica; Vitorović-Todorović, Maja D.; Bauk, Sonja; Lazić, Dragana; Samolov, Aleksandra; Ristović, Novica

doi:10.5937/str1801059s

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…According to new technical solutions in the development of structural materials, the nanotechnological approach to the control of the strength synthesis of the cementitious matrix is increasingly taken into account [4]. Dispersed reinforcement with steel fibers, basalt fiber in combination with nanomodifiers allows to increase the flexural strength by 6-8 times, impact strength by 15-20 times in comparison with concretes of classes C25/30-C32/40 [5,6].…”

Section: And 1041 Mpa) It Has Been Established That the Complex Combination Of Portland Cement With Superzeolite Corundum Aggregate Basalmentioning

confidence: 99%

Development of rapid-hardening ultra-high strength cementitious composites using superzeolite and N-C-S-H-PCE alkaline nanomodifier

Sanytsky

Kropyvnytska

Нeviuk

et al. 2021

EEJET

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It is shown that high operational reliability of structural materials, in particular at high temperatures, is achieved through the use of ultra-high strength cement composites. Studies of various types of Portland cements with mineral additives of the CEM II/A type have established that a stone based on Portland cement with superzeolite is the most resistant to high temperatures. It has been proven that due to the "self-autoclaving" effect, the strength of a stone based on CEM II/A-P 42.5 R is 1.2–1.3 times higher than a stone based on other types of CEM II/A. To obtain fast-hardening cement composites, a nanotechnological approach based on the use of sol-gel technology has been implemented. Using the methods of IR spectroscopy, electron microscopy, the fact of obtaining, by the chemical method of synthesis, an alkaline nanomodifier N-C-S-H-PCE, which is a nano–liquid based on nano-core seeds of sodium/calcium hydrosilicates, has been proved. It has been confirmed that the introduction of the alkaline nanomodifier N-C-S-H-PCE provides a significant intensification of the early structure formation processes in the paste based on Portland cement with superzeolite (after 12 hours, 24 hours and 28 days, the strength is 16.9; 30.5 and 104.1 MPa). It has been established that the complex combination of Portland cement with superzeolite, corundum aggregate, basalt fiber and alkaline nanomodifier provides rapid-hardening of ultra-high strength cement composites (T=400 °C) with improved operational properties. Thus, there is reason to assert the feasibility of developing rapid-hardening ultra-high strength cementitious composites. This solves the problems associated with the need to increase their early strength and performance. As a result, it is possible to carry out repair work to protect equipment from abrasive wear at elevated temperatures

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Section: And 1041 Mpa) It Has Been Established That the Complex Combination Of Portland Cement With Superzeolite Corundum Aggregate Basalmentioning

confidence: 99%

Development of rapid-hardening ultra-high strength cementitious composites using superzeolite and N-C-S-H-PCE alkaline nanomodifier

Sanytsky

Kropyvnytska

Нeviuk

et al. 2021

EEJET

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“…At the same time, great importance is attached to the quality of the construction material, as well as to such requirements as compactness during storage and the possibility of transportation by off-road trucks. Elements manufactured by industrial methods are widely used in the construction of such structures, in particular, the coverings and walls are assembled by stacking reinforced concrete elements close together, which are interconnected by metal bolts (Danica, 2018;Kisil, 2016;Hryhorovskyi, 2022).…”

Section: Introductionmentioning

confidence: 99%

High strength steel fiber reinforced concrete for fortification protected structures

Sanytsky,

Kropyvnytska,

Shyiko

et al. 2023

Theory build. pract.

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The article presents the results of research on modified steel fiber-reinforced concrete and shows the expediency of their use to increase the effectiveness of fortification protection structures against shock loads. It was established that according to the results of tests of compressive strength (fсm = 79.4 MPa) and tensile strength during bending (fс, lf = 7.4 MPa), steel fiber-reinforced concrete can be classified as high-strength (strength class C 50/60) and rapid-hardening (fcm2/ fcm28 = 0.57) in accordance with DSTU EN 206:2018. Manufacturing in factory conditions of reinforced concrete elements of structures based on high-strength steel fiber-reinforced concrete with increased resistance to various types of force effects during shelling will allow to obtain quick-assembling/quick-dismantling fortification structures that will be able to provide protection for the personnel of the units of the armed forces of Ukraine.

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Quantum Resilience and Distributed Trust: The Promise of Blockchain and Quantum Computing in Defense

Akhai,

Kumar

2024

Contributions to Environmental Sciences &Amp; Innovative Business Technology

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Nanotechnology for military applications: A survey of recent research in Military technical institute

Cited by 4 publications

References 17 publications

Development of rapid-hardening ultra-high strength cementitious composites using superzeolite and N-C-S-H-PCE alkaline nanomodifier

Development of rapid-hardening ultra-high strength cementitious composites using superzeolite and N-C-S-H-PCE alkaline nanomodifier

High strength steel fiber reinforced concrete for fortification protected structures

Quantum Resilience and Distributed Trust: The Promise of Blockchain and Quantum Computing in Defense

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