Temat: splitting tensile strength - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Durability of hybrid fiber reinforced concrete at various environmental media
Autorzy:: Elhawary, Eslam Ibrahim Nasr
Elsafoury, Ashraf Hassan
Ahmad, Seleem Saleh Elsayed
Powiązania:: https://bibliotekanauki.pl/articles/35555212.pdf
Data publikacji:: 2022
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: durability
hybrid fiber concrete
steel fiber
polypropylene fibre
compressive strength
splitting tensile strength
flexural strength
Opis:: Fiber’s addition to concrete mixture attracts researchers to determine the effect of fiber type on durability properties of hybrid performance concrete. In the present work, steel and polypropylene fibers are used in hybrid form in the experimental program. The objective of this paper is to investigate the mechanical properties of hybrid fiber reinforced concrete subjected to four various media: air, water, sodium chloride, and magnesium sulphate with a 7% concentration. The results showed that using hybrid fibers which consist of 1% steel fiber and 0.3% polypropylene fiber improved the compressive strength, splitting tensile strength, and flexural strength for different media for up to 360 days.
Źródło:: Scientific Review Engineering and Environmental Sciences; 2022, 31, 2; 88-100
1732-9353
Pojawia się w:: Scientific Review Engineering and Environmental Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Self-compacting concrete strengthening efficiency investigation using recycled steel waste as fibres
Autorzy:: Hussein, Ola Ahmed
Abbas, Aamer Najim
Powiązania:: https://bibliotekanauki.pl/articles/36058998.pdf
Data publikacji:: 2022
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: self-compacting concrete
waste steel fibre
compressive strength
recycling material
splitting tensile strength
adding recycled material
Opis:: Steel recycling saves energy and time, and is more environmentally friendly. It can help rid the environment of huge amounts of scrap vehicles and huge structures, as well as reducing the mining operations that destroy the natural environment. In this investigation, the steel scrap effect on the mechanical properties of concrete was investigated, in addition to investigating the variation in mechanical properties with increased concrete age. Three concrete mixes were studied: one without steel waste as a control, one with 1% steel waste by volume of concrete, and one with 1.5% steel waste by volume of concrete. The results show that adding waste steel to the concrete improved the compressive strength as well as the tensile strength, where a mixture which contains 1% of steel waste had an increase in strength of up to 12% and 23% by day 28 for compressive strength, and tensile strength sequentially in comparison to the reference mix. Furthermore, the results show that there was a significant increase in splitting tensile strength, at 29% on day 28 for a mix of 1.5% steel waste as compared to the reference concrete mix. The best improvement in compressive strength over time was obtained when using 1% steel waste. The best improvement in tensile strength over time was obtained when using 1.5% of steel waste. In both cases, the amount of the improvement was better than the models without steel waste, which gives us confidence in giving recommendations for conducting more in-depth studies to achieve the maximum advantage.
Źródło:: Scientific Review Engineering and Environmental Sciences; 2022, 31, 4; 249-258
1732-9353
Pojawia się w:: Scientific Review Engineering and Environmental Sciences
Dostawca treści:: Biblioteka Nauki

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