Acoustic properties of rubber crumbs

Pfretzschner, Jaime; Rodríguez, Rosa

doi:10.1016/s0142-9418(98)00009-9

Cited by 72 publications

(52 citation statements)

References 8 publications

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“…The theoretical model proposed by Champoux and Stinson (1992) shows the best approximations between experimental and theoretical results in this type of material as shows the work of Pfretzschner and Rodríguez (1999). This model involves the flow resistivity, porosity, tortuosity and two shape factors by comparing predicted behaviour to experimentally determined results.…”

Section: Modelling Of the Materialsmentioning

confidence: 86%

“…The porous material is saturated with a conducting fluid (a 10% dissolution of CuSO 4 ), and the electrical resistivity (equivalent to the flow resistivity) is then calculated through current and voltage measurements (using circular plates of copper as electrodes.) like in Pfretzschner and Rodríguez (1999).…”

Section: Tortuositymentioning

confidence: 95%

“…Recent studies from different authors have shown that recycled polymeric granulates from the recycling of products from end of life tyres may be formed into materials that have desirable acoustical properties. Pfretzschner andRodríguez (1999) andRodríguez Montejano (2004) verified that rubber crumbs can be a good sound absorber with a broadband absorption spectrum, being an excellent alternative to the current absorbent screens used for the protection against traffic noise, contributing at the same time to eliminate scrap tires. Swift et al (1999) found that these materials can effectively absorb sound if the size of the aggregate and the binder content are carefully selected and its thickness is tuned to the frequency range of interest.…”

Section: Introductionmentioning

confidence: 99%

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Acoustical performance of porous absorber made from recycled rubber and polyurethane resin

Maderuelo-Sanz

Morillas

Castizo

et al. 2013

Lat. Am. j. solids struct.

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This paper reports an investigation of a new kind of material and its acoustical performance. The main component of this porous absorber is the ground tyre rubber (GTR) with different particle sizes, from the shredding of tyres of heavy vehicles, mixed with different proportion of polyurethane resin. Acoustical properties were assessed according to ISO 10534-2: 1998. The data obtained show porous absorbers having a high sound absorption performance with low thicknesses and compared to some of the current models for the prediction of their absorptive properties. The use of this model constitutes a good tool in order to design a new sound absorber to solve two environmental problems, noise and environmental pollution.

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Section: Modelling Of the Materialsmentioning

confidence: 86%

Section: Tortuositymentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Acoustical performance of porous absorber made from recycled rubber and polyurethane resin

Maderuelo-Sanz

Morillas

Castizo

et al. 2013

Lat. Am. j. solids struct.

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“…En algunos estudios se ha evaluado la capacidad de absorción acústica de partículas de caucho reciclado, y se ha mostrado la potencial aplicación de dicho material en esta área [45]. Algunos autores han concluido que se pueden usar materiales compuestos que contienen partículas de caucho reciclado para aplicaciones donde se busque absorción acústica, gracias a la capacidad comprobada del caucho para absorber sonido de baja frecuencia, de tal manera que si se complementa con un material que absorba ondas acústicas de alta frecuencia se tendría una importante barrera contra el ruido utilizando materia prima de alta disponibilidad y bajo costo [46], además de desempeñarse igual o incluso mejor que muchos de los materiales que se comercializan actualmente para este tipo de productos [47].…”

Section: Construcción E Infraestructuraunclassified

Aplicaciones de caucho reciclado: Una revisión de la literatura

Arroyave

Restrepo

Vásquez

2017

Cien.Ing.Neogranadina

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La generación de residuos de caucho se ha convertido en una preocupación global por su impacto negativo en el medio ambiente y en la salud humana. La legislación ambiental sobre la disposición de este tipo de residuos ha venido aumentando las exigencias a los fabricantes, comercializadores y usuarios, con lo cual se ha acelerado la búsqueda de alternativas para el reaprovechamiento de los residuos de caucho. Este artículo presenta una revisión bibliográfica acerca de las principales tendencias en la utilización del caucho reciclado, incluyendo aplicaciones actualmente comercializadas y otras derivadas, tanto de estudios terminados, como de líneas de investigación en desarrollo. Las aplicaciones con mayor potencial de volumen consumido son del sector infraestructura y construcciones civiles, especialmente asfaltos, concretos y materiales aislantes para construcción liviana. Algunas aplicaciones con potencial en el futuro cercano son los filtros para la limpieza de aguas contaminadas y como componente en materiales compuestos con matriz termoplástica o en poliuretano. Por último, se evidencia la pertinencia de continuar investigando sobre esta temática que posee unos retos científicos de alta relevancia, los cuales ameritan la mayor atención por el problema ambiental significativo asociado al manejo de los residuos de caucho.

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“…More recently, recycled rubber crumb has found a significant range of applications as a sound absorption material, for use along highways and between buildings to reduce noise in neighbouring residential areas [8][9] .…”

Section: Introductionmentioning

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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Acoustic properties of rubber crumbs

Cited by 72 publications

References 8 publications

Acoustical performance of porous absorber made from recycled rubber and polyurethane resin

Acoustical performance of porous absorber made from recycled rubber and polyurethane resin

Aplicaciones de caucho reciclado: Una revisión de la literatura

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

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