Influence of Mixing Procedures, Rubber Treatment, and Fibre Additives on Rubcrete Performance

Youssf, Osama; Hassanli, Reza; Mills, Julie E.; Skinner, William; Ma, Xing; Zhuge, Yan; Roychand, Rajeev; Gravina, Rebecca

doi:10.3390/jcs3020041

Cited by 85 publications

(23 citation statements)

References 35 publications

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“…Rubber is one of the most important materials for various industries, especially in petroleum, construction [1] and protection material sectors [2,3]. Protective gloves are often covered by an elastomeric coating to protect against chemical and mechanical damages due to its good resistance against abrasion, oils and chemicals, and its excellent damping properties [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Butyl Rubber-Based Composite: Thermal Degradation and Prediction of Service Lifetime

2019

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Butyl rubber-based composite (BRC) is one of the most popular materials for the fabrication of protective gloves against chemical and mechanical risks. However, in many workplaces, such as metal manufacturing or automotive mechanical services, its mechanical hazards usually appear together with metalworking fluids (MWFs). The presence of these contaminants, particularly at high temperatures, could modify its properties due to the scission, the plasticization and the crosslinking of the polymer network and thus lead to severe modification of the mechanical and physicochemical properties of material. This work aims to determine the effect of temperature and a metalworking fluid on the mechanical behavior of butyl rubber composite, dealing with crosslinking density, cohesion forces and the elastic constant of BRC, based on Mooney–Rivlin’s theory. The effect of temperature with and without MWFs on the thermo-dynamical properties and morphology of butyl membranes was also investigated. The prediction of service lifetime was then evaluated from the extrapolation of the Arrhenius plot at different temperatures.

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Section: Introductionmentioning

confidence: 99%

Butyl Rubber-Based Composite: Thermal Degradation and Prediction of Service Lifetime

2019

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“…A comprehensive review on the effect of various rubber treatment methods on the mechanical properties of crumb rubber concrete was carried out by Roychand et al [25], which covered research work published in last 30 years. The various rubber treatment methods they reported were: 24-h water soaking [28]; NaOH [29][30][31][32]; Silane coupling agent [33]; polyvinyl alcohol [34]; partial oxidation [35]; organic sulphur compounds [36]; UV [37] and gamma [38] radiations; solvents like methanol, ethanol, and acetone [39]; KMnO 4 and NaHSO 3 [40]; heat treatment [41]; acid treatments with H 2 SO 4 [42]; HCl [43]; HNO 3 [44]; CH 3 COOH [42]; Ca(OH) 2 [42]; CaCl 2 [29]; H 2 O 2 [29]; and (xxi) CS 2 [45]. They made the following conclusions:…”

Section: Of 17mentioning

confidence: 99%

Practical Rubber Pre-Treatment Approch for Concrete Use—An Experimental Study

et al. 2021

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There is a lot of ongoing active research all over the world looking for various applications of used tyre rubber, to increase its utilisation rate. One of the common research applications is to incorporate rubber into concrete as a partial replacement for conventional aggregates. However, due to its poor bonding performance with cement paste, the utilisation of rubber in concrete has been hindered to date. A cost-effective and time-saving rubber pre-treatment method is of great interest, especially for the concrete industry. Out of all the various pre-treatment methods, soaking rubber particles in water is the most cost-effective and least complex method. In addition, sodium sulphate accelerates the hydration reaction of the cement composites. This study looks at the effect of soaking crumb rubber in tap water for short (2 h) and long (24 h) durations, and the optimised duration was then compared with soaking the crumb rubber in a 5% concentration of sodium sulphate solution. Compressive strength, bond behaviour, and rubber/cement interfacial transition zone (ITZ) were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. The results demonstrate that a soaking duration of 2 h provides much better performance in both the strength and bond properties compared to 24-h soaking. A further improvement in the 7-day strength was achieved with the rubber soaked in 5% sodium sulphate solution for 2 h, providing a more practical and economical rubber pre-treatment method for concrete industry use.

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“…Recycled steel fiber reinforced concrete has been found to perform comparably to industrial steel fiber reinforced concrete, with improved flexural strength, tensile strength, and post-cracking behavior when compared to traditional concrete. Other relevant studies involving rubber and/or steel fibers exist [8][9][10][11][12][13]. The effects (e.g., increased shear capacity, tensile strength, and high-temperature structural stability) of steel fibers in normal concrete have been studied [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Investigation into Recycled Rubber Aggregates and Steel Wire Fiber for Use in Concrete Subjected to Impact Loading

et al. 2020

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This study investigated the potential use of tire derived rubber aggregates, particularly powdered rubber, and recycled steel-wire fibers in concrete subjected to impact loading. The fibers are approximately 0.4 mm in average diameter and 25 mm in length on average. There are two main portions to this study. The first phase of this study involved small-scale batching to investigate the fresh and hardened properties of concrete mixtures with powdered rubber up to 50% replacement of sand volume and recycled steel fibers up to 0.25% by mixture volume. Additional mixtures containing powdered rubber, crumb rubber, and tire chips were evaluated for their mechanical performance. Based on fresh concrete properties, compressive strength, modulus of rigidity, and impact resilience, mixtures were selected for a second investigative phase. In this phase, static and impact testing were performed on two sets of scaled beams. One beam set was produced with concrete containing 40% powdered rubber as a sand replacement and another beam set with a combination mixture incorporating rubber products of varying sizes (10% powdered rubber, 10% crumb rubber, and 10% tire chip) and 0.25% recycled steel fiber. Flexural performance improved initially with the inclusion of powdered rubber but decreased with increasing concentrations. Mixtures including recycled steel fibers at 0.25% outperformed industrial steel fiber mixtures in both flexural strength and impact resistance. For both the static and impact beams with the recycled powdered rubber and steel fibers in the combination demonstrated improved load distribution and load-carrying capacity, acting as a sufficient replacement for industrial steel fiber reinforcement.

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Influence of Mixing Procedures, Rubber Treatment, and Fibre Additives on Rubcrete Performance

Cited by 85 publications

References 35 publications

Butyl Rubber-Based Composite: Thermal Degradation and Prediction of Service Lifetime

Butyl Rubber-Based Composite: Thermal Degradation and Prediction of Service Lifetime

Practical Rubber Pre-Treatment Approch for Concrete Use—An Experimental Study

Investigation into Recycled Rubber Aggregates and Steel Wire Fiber for Use in Concrete Subjected to Impact Loading

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