Mechanical and acoustical characteristics of bound rubber granulate

Sobral, M. Madalena C.; Samagaio, António; Ferreira, J.M.F.; Labrincha, J.A.

doi:10.1016/s0924-0136(03)00623-x

Cited by 35 publications

(16 citation statements)

References 1 publication

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“…It aims to provide cohesion to the product once the compression process finishes. Fine grain sizes result in larger values of the mechanical properties, whereas the products showing larger sizes are more porous and are better able to absorb .…”

Section: Resultsmentioning

confidence: 99%

“…These authors analyze the effect of temperature, pressure and particle size of ground tire rubber on the mechanical properties of the products obtained by compression and sintering. The influence of using binders on the mechanical and acoustic properties of rubber granulates is investigated . The acoustic properties of rubber granulates are studied .…”

Section: Introductionmentioning

confidence: 99%

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Modelling the compression behavior of ground tire rubber

Nadal

Boix

Parrés

et al. 2016

Materialwissenschaft Werkst

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The purpose of this paper was to study elastomer powder from crushed used tires (CUTs). In particular, the behavior of the green density of elastomeric powder was analyzed by varying compaction pressure. In the Anglo-saxon bibliography, this powder is known as ground tire rubber: ground tire rubber (GTR). The density of the tyre was made using a hydrostatic balance, the analysis of grain size using cribbing sieves, and the measures of compression parameters by means of a Universal Testing Machine. The main goal was to obtain a behavior model of ground tire rubber along different compaction pressures. This model was used to predict optimum compaction pressures in order to achieve the highest density. This was the first step to obtain recycled products when sintering processes are applied, evidently if thermal compression was used as a manufacturing process. This established model predicted the evolution of green density versus compaction pressures very accurately.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling the compression behavior of ground tire rubber

Nadal

Boix

Parrés

et al. 2016

Materialwissenschaft Werkst

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“…Horoshenkov and Swift [61] provided a comprehensive description of the sound absorption properties of both loose and consolidated rubber crumbs. Sobral et al [62] correlated the sound absorption properties of bound rubber crumbs with the mechanical ones. Hong et al [63] studied improved acoustical performance by combining double-layer structures of rubber particles with porous materials and perforated panels, obtaining acceptable sound absorption properties.…”

Section: Natural Materialsmentioning

confidence: 99%

Eco-Materials with Noise Reduction Properties

Arenas

Asdrubali

2017

Handbook of Ecomaterials

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Eco-materials employed to reduce noise are used either independently or as components of complex composite materials, which are a growing area of research. These eco-materials have the potential to be used as high-performance sound-absorbing noise isolators in a number of applications in areas such as transportation, architectural, industrial, and construction. Public concern about the environmental impact of transportation is leading to reduced fuel consumption and the use of recycled materials. These are clearly related to the reduction of weight, extending durable years. Currently, the concept of "green" building

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“…These studies have shown that improvements in acoustic damping capability can be obtained over a wide frequency range, owing to the high porosity caused by the dispersed particles 8,9,11 . The effects of adhesives and polymeric binders have also been studied 9,13,[16][17] while Zhou et al 2 have developed composite sound absorbing perforated panels, combining double-layer structures of recycled rubber particles with opencell polyurethane foam. More recently, the sound insulation properties of wood/recycled tyre rubber composite panels have been investigated and it has been shown that an increase in recycled rubber crumb produced improvements in soundproofing properties 3 .…”

Section: European Commission Directives: the Waste Landfill Directivementioning

confidence: 99%

Thermoplastic composite beam structures from mixtures of recycled HDPE and rubber crumb for acoustic energy absorption

Haworth

Chadwick²,

Chen

et al. 2016

Journal of Thermoplastic Composite Materials

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The use of recycled rubber crumb in the design and production of thermoplastic-rubber composites as sound absorbers can provide solutions to noise pollution and for the recovery of post-consumer materials from both packaging and waste tyres. The work of this study is concerned with the effect of rubber crumb incorporation in high-density polyethylene (HDPE) and also in HDPE glass fibre composites on acoustic, mechanical and physical properties. Recycled HDPE compounds containing variable concentrations of cured rubber crumb particles were prepared by twin screw extrusion. Thermal analysis has revealed a significant increase in the level of crystallinity of the HDPE component by increasing the rubber content in the mixes. Standard three-point bending and notched impact test specimens were manufactured by injection moulding, and large-scale beam samples were produced by compression moulding using an ad hoc method that allows variation of the through-thickness elastomer content as a means of obtaining composition gradients. The flexural modulus and impact strength varied monotonically with rubber crumb concentration. A fast Fourier transform technique was used to determine the acoustic performance of the beams over a wide frequency range. The graded structures produced large improvements in acoustic absorption properties in the frequency range of 2–6 kHz, notably from composite beams containing 20% rubber and also in some multilayer beams with rubber concentration gradients.

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Mechanical and acoustical characteristics of bound rubber granulate

Cited by 35 publications

References 1 publication

Modelling the compression behavior of ground tire rubber

Modelling the compression behavior of ground tire rubber

Eco-Materials with Noise Reduction Properties

Thermoplastic composite beam structures from mixtures of recycled HDPE and rubber crumb for acoustic energy absorption

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