Experimental effect of pre-treatment of rubber fibers on mechanical properties of rubberized concrete

Agrawal, Dhiraj; Waghe, Uday; Ansari, Khalid; Dighade, Rajendra; Amran, Mugahed; Qader, Diyar N.; Федюк, Роман

doi:10.1016/j.jmrt.2023.01.027

Cited by 24 publications

(8 citation statements)

References 44 publications

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“…Primjenom natrijevog hidroksida u tretiranju gume dolazi do reakcije NaOH i cinkovog stearata čime osnažuju veze između gume i cementne paste [10]. Autori Agrawal i suradnici [11] tretirali su gumena vlakna 1 molarnom otopinom natrijevog hidroksida (4 %-tna otopina). Kao rezultat povećana je tlačna čvrstoća betona u odnosu na beton s netretiranim gumenim vlaknima.…”

Section: Uvodunclassified

“…Očito je kako je natrijev hidroksid smanjio negativni utjecaj cinka i izazvao stvaranje jačih veza unutar matrice što je vidljivo u većoj krutosti postizanjem većeg modula elastičnosti. No, bez obzira na povećanje krutosti mješavine, došlo je do smanjenja tlačne čvrstoće što nije u skladu s istraživanjima u betonima s tretiranom otpadnom gumom [11]. Naime, u mješavini betona prisutno je znatno više cementne paste koja u potpunosti obavija zrna agregata, dok to nije slučaj u stabilizacijskoj mješavini.…”

Section: Rezultatiunclassified

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Impact of rubber aggregate treatment on the mechanical properties of cement stabilized base course with waste rubber

Zvonarić

2023

Zajednički Temelji 2023. - uniSTem : Deseti Skup Mladih Istraživača Iz Područja Građevinarstva I Srodnih Tehničkih Znanosti, Sp

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The incorporation of waste rubber in cement-stabilized bearing layers exhibits drawbacks, such as a reduction in the mixture's strength. To address these drawbacks, various treatments can be applied to the rubber. This research investigates the treatment of rubber with sodium hydroxide and boiling water. The rubber treated using these methods was incorporated into a mixture defined within the „RubSuPave“ project that did not meet the compressive strength requirements for installation in the pavement's bearing layers. The results indicate that both rubber treatments lead to a decrease in the compressive strength of the mixture. After 7 days, the reduction is similar for both treatments, while better results were achieved after 28 days with the sodium hydroxide treatment. Additionally, after 28 days of curing, the rubber treated with sodium hydroxide exhibited increased stiffness in the stabilization mixture. Furthermore, the rubber surface was analyzed using a scanning electron microscope, revealing significant irregularities caused by both treatments. The applied methods did not result in an increase in the mixture's strength.

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Section: Uvodunclassified

Section: Rezultatiunclassified

Impact of rubber aggregate treatment on the mechanical properties of cement stabilized base course with waste rubber

Zvonarić

2023

Zajednički Temelji 2023. - uniSTem : Deseti Skup Mladih Istraživača Iz Područja Građevinarstva I Srodnih Tehničkih Znanosti, Sp

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“…Agrawal et al investigated pretreating rubber fibers from discarded tires to improve rubberized concrete properties. Treating with acids or alkalis enhanced strength versus untreated rubber, with 10% pretreated rubber maintaining strength while improving ductility 2 . Al-Osta et al incorporated recycled rubber and polyethylene into concrete, finding 40% lower thermal conductivity but over 80% lower strength 3 .…”

Section: Introductionmentioning

confidence: 99%

Enhancing high-performance concrete sustainability: integration of waste tire rubber for innovation

Singaravel,

Veerapandian,

Rajendran

et al. 2024

Sci Rep

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This study extensively explored the impact of integrating waste tire rubber into high-performance concrete (HPC) by substituting natural sand. Different fractions of rubber particles—5%, 10%, and 15% replacements of the fine aggregate—were rigorously investigated. Properties from fresh to hardened concrete were assessed, including compressive and tensile strength, modulus of elasticity, workability, and damping coefficient. Replacing up to 10% of sand with 0.6 mm rubber particles showed minimal strength compromise compared to standard HPC. However, at a 15% replacement rate, a noticeable decline in strength became evident, highlighting an optimal threshold for inclusion. Additionally, rubber incorporation notably enhanced concrete ductility and damping, marking a substantial improvement in dynamic properties. Efforts to offset strength reduction through increased fines content and mineral admixture could not counteract the decline at the 15% replacement level, suggesting limitations in compensatory measures. Methodological refinements enhanced data accuracy, including capping and surface treatments during compression testing. The study underlined the viability of controlled rubber substitution for bolstering HPC's dynamic attributes. Despite strength reductions at higher replacement rates, controlled waste tire rubber integration proves promising for enhancing HPC's dynamics without compromising structural integrity, advocating its suitability across diverse construction applications.

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“…It is found that all the strength parameters have shown satisfactory results in comparison to control concrete [ 17 ]. It is recommended that the incorporation of RCA in concrete has also shown better performance for freezing-thawing resistance than the control concrete [ 18 , 19 ]. Also, Bravo et al [ 20 ] completed research work on the use of RCA collected from different locations in concrete and commented that the common observation was seen in all forms of concrete with RCA as the strengths are decreased.…”

Section: Introductionmentioning

confidence: 99%

“…The substitution of 5% coarse aggregate by tire chips has resulted in enrichment of compressive strength and the replacement of cement showed a decrease in strength. Agrawal et al [ 18 ] studied the effect of varying particle sizes of RP and the effect of pre-treatment opted on the mechanical properties of RC and concluded that the coarser size of RP has more promising results than the finer RP. Further, it is stated that the RC with 10% pretreated rubber fibers has almost similar results as that of the control concrete.…”

Section: Introductionmentioning

confidence: 99%

Optimization of eco-friendly concrete with recycled coarse aggregates and rubber particles as sustainable industrial byproducts for construction practices

Agrawal,

Waghe,

Ansari

et al. 2024

Heliyon

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Experimental effect of pre-treatment of rubber fibers on mechanical properties of rubberized concrete

Cited by 24 publications

References 44 publications

Impact of rubber aggregate treatment on the mechanical properties of cement stabilized base course with waste rubber

Impact of rubber aggregate treatment on the mechanical properties of cement stabilized base course with waste rubber

Enhancing high-performance concrete sustainability: integration of waste tire rubber for innovation

Optimization of eco-friendly concrete with recycled coarse aggregates and rubber particles as sustainable industrial byproducts for construction practices

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