Software tools for development of a methodology for selecting construction materials according to their performance characteristics

Kostyuk, Tatiana; Plugin, Andrii; Starkova, Olha; Bondarenko, Dmitro; Borziak, Olga

doi:10.1063/5.0120109

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [6][7][8], the electrical surface properties of the most common fibers for dispersed reinforcement of cement and other composites were successively studied, the type and surface concentration of active centers were establishedthe potential of the determining ions on the surface of the fibers, the signs and magnitudes of electrical surface charges, the magnitudes of absolute and equilibrium electrosurface potentials.…”

Section: Dispersed Reinforcementmentioning

confidence: 99%

Concrete for Reconstruction of Structures

Abramowicz,

Plugin,

Borziak

et al. 2023

ce papers

Self Cite

View full text Add to dashboard Cite

To eliminate significant wear of building structures, increase the bearing capacity when operating conditions change, it may be necessary to restore / increase the bearing capacity of structures. One of the most common methods of strengthening is to increase the section of the structure by installing duplicate elements. For reinforced concrete structures, reinforcement should include the restoration of the surface layer of concrete, the filling of cracks and chips. The paper considers a method for increasing the adhesion of new concrete to the old one. Concrete formulations are proposed for strengthening structures whose concrete has already been damaged due to exposure to aggressive media. The formation of the physical and mechanical parameters of new concretes, their adhesion to old concretes was carried out due to the directed formation of their structure. The formation of the structure at the mesolevel is affected by the introduction of the optimal amount of microfillers and reinforcing fibers. At the micro‐ and submicrolevel, due to the introduction of a complex chemical additive, additional crystalline hydrates are synthesized, strengthening the contact zone between the old concrete and the new one.

show abstract

Section: Dispersed Reinforcementmentioning

confidence: 99%

Concrete for Reconstruction of Structures

Abramowicz,

Plugin,

Borziak

et al. 2023

ce papers

Self Cite

View full text Add to dashboard Cite

show abstract

Current State and Development Prospects for the Renewal of Sewerage Networks in Kharkiv City

Voronenko

2024

MEC

View full text Add to dashboard Cite

Ensuring the reliable operation of sewerage systems is one of the essential tasks of municipal services in Ukrainian cities. As the research shows, in most cases, their construction involved concrete and reinforced concrete, which are prone to destruction under the influence of many factors, particularly microbiological corrosion. The destruction of sewage collectors is often the reason for wastewater leaking into groundwater and soil, resulting in pollution. The article provides statistical data on the ‘Kharkivvodovidvedennia’ Complex of the ME ‘Kharkivvodokanal’ as of 01.01.2024, which operates the city’s external water drainage networks. The article outlines the most common factors that lead to emergencies in sewage networks, such as aging and wear of infrastructure, insufficient maintenance and repair, mechanical damage, pollution and clogging, increased volume of wastewater, planning problems, chemical reactions, biological corrosion, and connection defects. The relationship between these causes may be that corrosion can weaken pipeline materials, making them more vulnerable to mechanical damage and leakage. According to preliminary calculations, it is necessary to relay or rehabilitate (trenchless pipeline laying) at least 22–25 km of city networks annually to ensure the reliability of sewage networks. The article analyses the work cycles performed on the tunnel collectors’ objects and large-diameter collectors over five years. Major repair and reconstruction work that deserves attention includes work on the repair of mine No. 12 of the tunnel collector of the 761 micro-district (mine depth H = 6.75 m, diameter – 5 m); restoration work of the Oleksiivskyi collector Ø 2000 mm near the viewing chamber No. 33 on the street Lopanska; restoration of the collector of the Northern group of factories Ø 900 mm at Danylivskyi Uzviz. As a result, we carried out an analysis of the current state of the sewage network of the city of Kharkiv. The main factor in the wear and tear of sewerage networks is corrosion, which, in turn, can weaken pipeline materials, making them more vulnerable to mechanical damage and leaks. Despite the difficult economic conditions, work on the repair and operation of networks is carried out. Also worthy of special attention for future research is the survey of mines where restoration work took place over the past ten years using modern methods. Keywords: underground construction, sewerage, renewal, repair, reconstruction, bearing capacity, wear, corrosion.

show abstract

Software tools for development of a methodology for selecting construction materials according to their performance characteristics

Cited by 2 publications

References 2 publications

Concrete for Reconstruction of Structures

Concrete for Reconstruction of Structures

Current State and Development Prospects for the Renewal of Sewerage Networks in Kharkiv City

Contact Info

Product

Resources

About