Self-compacting Concrete Strengthening Efficiency Investigation by Using Recycled Steel Waste as Fibers

• Autorzy: Hussein Ola Ahmed , Abbas Aamer Najim

Identyfikatory

DOI

10.12912/27197050/159790

• Języki publikacji: EN

Abstrakty

EN

Steel recycling saves energy and time and is more environmentally friendly. It rids the environment from huge amounts of scrap cars and huge structures, as well as reduces mining operations that destroy the natural environment. In this investigation, the steel scrap effect on the mechanical properties of concrete was investigated, inadditiontoinvestigatethevariationofmechanicalpropertieswithincreasingtheconcrete 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 compressive strength as well as tensile strength. where, the mixing which contains 1% of steel waste, has an increase in strength that reaches up to 12% and 23% at 28 days for compressive strength and tensile strength sequentially as compared to the reference mix. Furthermore, the results show that there is a significant increase in splitting tensile strength that reaches 29% at 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. Whilethebestimprovementintensilestrengthovertimewasobtainedwhenusing 1.5% steelwaste.In both cases, the amount of improvement is better than the models without steel waste, which gives us confidence in giving recommendations for conducting more in-depth studies to achieve maximum advantage.

Słowa kluczowe

EN

self-compacting concrete; waste steel fibre; compressive strength; recycling material; splitting tensile strength; adding recycled material

• Wydawca: Lubelski Oddział Polskiego Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology ; WNGB Wydawnictwo Naukowe
• Czasopismo: Ecological Engineering & Environmental Technology
• Rocznik: 2023
• Tom: Vol. 24, iss. 3
• Strony: 153--160
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Hussein Ola Ahmed

• Department of Civil Engineering, Al-Rafidain University Collage, Baghdad, Iraq

• https://orcid.org/0000-0003-2544-5033

autor

Abbas Aamer Najim

• Water Resources Engineering Department,University of Mustansiriyah, College of engineering, Baghdad, Iraq

• https://orcid.org/0000-0001-5606-3439

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).