Sustainable future of construction: the potential of concrete with basalt mini-bars as reinforcement

• Autorzy: Krassowska Julita , Kosior-Kazberuk Marta , Słowik Marta , Akram Amanda

Identyfikatory

DOI

10.34659/eis.2024.88.1.776

Warianty tytułu

PL

Zrównoważona przyszłość budownictwa i potencjał betonu ze zbrojeniem w formie miniprętów bazaltowych

• Języki publikacji: EN

Abstrakty

EN

The paper concerns the influence of basalt minibars on the subcritical and critical behaviour of test specimens made of concrete with low-emission cement. Low-emission cement produces lower emissions of greenhouse gases and other pollutants than traditional cement. Analyses were conducted on changes in fracture mechanics parameters depending on the content of microfibers in the concrete mix (0, 2, 4, 8 kg/m³), the type of cement used, and the water-to-cement ratio (w/c). It was demonstrated that concrete reinforced with basalt microfibers exhibits increased resistance to crack initiation and propagation. An increase in the stress intensity factor was observed for CEMI 42.5R concretes at w/c=0.5 by 27%, at w/c =0.4 by 62%, and for CEM II 42.5R/A-V concretes at w/c=0.5 by 29%, and at w/c=0.4 by as much as 30%. It was shown that the addition of microfibers to concrete made with low-emission cement significantly increases the mechanical parameters of this material.

PL

W artykule przedstawiono wyniki badań wpływu mikroprętów bazaltowych na podkrytyczne i pokrytyczne zachowanie się elementów próbnych z betonu wykonanego z cementu niskoemisyjnego. Cementy niskoemisyjne to rodzaj cementów, które są produkowane z mniejszą emisją gazów cieplarnianych i innych zanieczyszczeń w porównaniu z tradycyjnymi cementami. Przeprowadzono analizy zmian parametrów mechaniki pękania w zależności od zawartości mikroprętów w mieszance betonowej (0, 2, 4, 8 kg/m³), rodzaju zastosowanego cementu i wpływu wskaźnika w/c. Wykazano, że beton zbrojony mikroprętami bazaltowymi charakteryzuje się zwiększoną odpornością na inicjację i propagację pęknięć. Zaobserwowano wzrost współczynnika intensywności naprężeń dla betonów z cementu CEMI 42.5R o w/c =0.5 o 27% w/c =0.4 o 62%, oraz dla betonów z cementu CEM II 42.5R/A-V o w/c =0.5 o 29% w/c =0.4 aż o 30%. Wykazano, że dodatek mikroprętów do betonu wykonanego z cementu niskoemisyjnego znacząco zwiększa parametry mechaniczne tego materiału.

Słowa kluczowe

EN

concrete; basalt minibar; post-cracking behaviour; fracture parameters

PL

beton; minipręt bazaltowy; mechanika pękania betonu; zrównoważone budownictwo

• Wydawca: Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
• Czasopismo: Economics and Environment
• Rocznik: 2024
• Tom: no. 1
• Strony: art. no. 776
• Opis fizyczny: Bibliogr. 21 poz., fot., tab., wykr.

Twórcy

autor

Krassowska Julita

• Faculty of Civil and Environmental Engineering, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland

• https://orcid.org/0000-0001-9209-1285

autor

Kosior-Kazberuk Marta

• Faculty of Civil and Environmental Engineering, Bialystok University of Technology, Wiejska Street 45E, 15-351 Bialystok, Poland

• https://orcid.org/0000-0001-8171-2242

autor

Słowik Marta

• Faculty of Civil Engineering and Architecture, Lublin University of Technology, Lublin, Poland

• https://orcid.org/0000-0001-9627-3625

autor

Akram Amanda

• Faculty of Civil Engineering and Architecture, Lublin University of Technology, Lublin, Poland

Bibliografia

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• Batog, M., Bakalarz, J., Synowiec, K., & Dziuk, D. (2022). Stosowanie cementów wieloskładnikowych w budownictwie. Budownictwo, Technologie, Architektura, 3.
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