Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Tomasz Ponikiewski"'
Autor:
Aleksandra Kostrzanowska-Siedlarz, Krzysztof Musioł, Tomasz Ponikiewski, Dawid Janas, Marian Kampik
Publikováno v:
Materials, Vol 17, Iss 20, p 4972 (2024)
One of the ways to turn concrete into smart concrete involves the incorporation of conductive fillers. These fillers should be evenly distributed in the matrix to enable the charge propagation necessary for sensing. To homogenize the mixture, typical
Externí odkaz:
https://doaj.org/article/4de2fc639d524aa2b570704327579215
Publikováno v:
Materials, Vol 16, Iss 14, p 5159 (2023)
This paper presents the analysis of how ISP slag addition affects the effectiveness of chloride extraction from self-compacting concrete. Corrosion processes were initiated by chloride ions added to concrete by the method accelerated with an electric
Externí odkaz:
https://doaj.org/article/bb1078a833b5467c90e0608211a9ee3e
Publikováno v:
Materials, Vol 14, Iss 21, p 6274 (2021)
The production of ordinary Portland cement is associated with significant CO2 emissions. To limit these emissions, new binders are needed that can be efficiently substituted for cement. Alkali-activated slag composites are one such possible binder so
Externí odkaz:
https://doaj.org/article/52b7e9b0c89e4024b8efc86b78d02cc1
Publikováno v:
Materials, Vol 13, Iss 10, p 2245 (2020)
Due to the rational shaping of the environment and the management of environmental resources in accordance with the principle of sustainable development, calcareous fly ash (CFA)—high-calcium as a by-product of lignite combustion—is a valuable ad
Externí odkaz:
https://doaj.org/article/81e9745ca7694bb69d8a22bf70d612bd
Publikováno v:
Materials, Vol 13, Iss 8, p 1906 (2020)
This research was inspired by the growing global shortage of natural aggregates. Different types of waste ceramics (apart from recycled concrete) are the most popular materials for the production of waste aggregates as possible substitutes for natura
Externí odkaz:
https://doaj.org/article/f990ceb8574a488e9ea09684c116d542
Publikováno v:
Crystals, Vol 10, Iss 3, p 220 (2020)
The paper focuses on the evaluation of chloride ion diffusion coefficient of self-compacting concrete with steel fibre reinforcement. The reference concrete from Ordinary Portland Cement (OPC) and Self-Compacting Concrete (SCC) with several values of
Externí odkaz:
https://doaj.org/article/124f0c1c0cb34ee5a69c4bd5490fb7a5
Autor:
Tomasz Ponikiewski, Jacek Katzer
Publikováno v:
Journal of Civil Engineering and Management, Vol 23, Iss 5 (2017)
The aim of the research programme was to investigate flexural behaviour of steel fibre reinforced self-compacting concrete (SFRSCC). The specimens were in a form of slabs reinforced with steel fibres (of three lengths and two shapes) by volumes of
Externí odkaz:
https://doaj.org/article/8ecf2781db764353934d9a678b66494e
Publikováno v:
Materials, Vol 12, Iss 21, p 3507 (2019)
In this paper, the authors made an attempt to detect the fibre content and fibre spacing in a steel fibre reinforced concrete (SFRC) industrial floor. Two non-destructive testing (NDT) methods, an electromagnetic induction technique and a radar-based
Externí odkaz:
https://doaj.org/article/0435549580894262a69f2dc1e06c85ea
Autor:
Jacek Katzer, Tomasz Ponikiewski
Publikováno v:
Key Engineering Materials. 832:21-28
The paper presents results of tests conducted on self-compacting mixes with the addition of engineered steel fibres. There were used four types of fibres. The fibres were added at 5 levels of the volume ratio. Firstly, fresh mixes were tested (slump
Publikováno v:
Open Engineering, Vol 9, Iss 1, Pp 196-201 (2019)
The main goal of the presented research was to verify the possibility of obtaining ecological self-compacting concrete of low hardening temperature, containing different types of cements with calcareous fly ash W as main component and the influence o