Performance Evaluation of Crumb Rubber Modified Stone Mastic Asphalt Pavement in Malaysia

To prevent pavement distresses there are various solutions such as adopting new mix designs or utilisation of asphalt additives. The primary aim of this study was to investigate the effect of adding crumb tyre rubber as an additive to SMA mixture performance properties. This study investigated the essential aspects of modified asphalt mixtures in order to better understand the influence of CRM modifiers on volumetric, mechanical, and stiffness properties of SMA mixture. In this study, virgin bitumen 80/100 penetration grade was used, modified with crumb rubber (CRM) at five different modification levels, namely, 6%, 12%, 16%, and 20%, respectively, by weight of the bitumen. The appropriate amount of the added CRM was found to be 12% by weight of bitumen. This percentage results in the maximum level of stability. The resilient modulus (Mr) of modified SMA samples including different percentages of CRM was obviously higher in comparison with that of unmodified samples.

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Design of a crumb rubber modified asphalt pavement using the stone mastic asphalt concept.

10.22215/etd/1994-09818 ◽

1994 ◽

Author(s):

Robert Veizer

Keyword(s):

Asphalt Pavement ◽

Crumb Rubber ◽

Modified Asphalt ◽

Mastic Asphalt ◽

Stone Mastic Asphalt

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Investigation of Low-Temperature Behavior of Stone Mastic Asphalt Mixtures Modified with Paraffin and Crumb Rubber

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi ◽

10.19113/sdufbed.18501 ◽

2017 ◽

Vol 21 (3) ◽

pp. 683

Author(s):

Baha Vural KÖK ◽

Mehmet YILMAZ ◽

Mustafa AKPOLAT

Keyword(s):

Low Temperature ◽

Crumb Rubber ◽

Asphalt Mixtures ◽

Temperature Behavior ◽

Mastic Asphalt ◽

Stone Mastic Asphalt

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Laboratory investigation of engineering properties of rubberized asphalt mixtures containing reclaimed asphalt pavement

Canadian Journal of Civil Engineering ◽

10.1139/l10-070 ◽

2010 ◽

Vol 37 (11) ◽

pp. 1414-1422 ◽

Cited By ~ 8

Author(s):

Feipeng Xiao ◽

Serji Amirkhanian ◽

Bradley Putman ◽

Junan Shen

Keyword(s):

Resilient Modulus ◽

Asphalt Pavement ◽

Crumb Rubber ◽

Asphalt Mixtures ◽

Engineering Properties ◽

Reclaimed Asphalt Pavement ◽

Reclaimed Asphalt ◽

The Us ◽

Rubberized Asphalt Concrete ◽

Environmentally Sound

An improved understanding of the rheological and engineering properties of a rubberized asphalt concrete (RAC) pavement that contains reclaimed asphalt pavement (RAP) is important to stimulating the use of these recycled and by-product materials in asphalt mixtures. The uses of RAP and rubberized asphalt in the past have proven to be economical, environmentally sound, and effective in hot mix asphalt (HMA) mixtures across the US and the world. The objective of this research was to investigate the binder and mixture performance characteristics of these modified asphalt mixtures through a series of laboratory tests to evaluate properties such as the fatigue factor G*sinδ, rutting resistance, resilient modulus, and fatigue life. The results of the experiments indicated that the use of RAP and crumb rubber in HMA can effectively improve the engineering properties of these mixes.

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Laboratory and Field Investigation of the Feasibility of Crumb Rubber Waste Application to Improve the Flexibility of Anti-Rutting Performance of Asphalt Pavement

Materials ◽

10.3390/ma11091738 ◽

2018 ◽

Vol 11 (9) ◽

pp. 1738 ◽

Cited By ~ 4

Author(s):

Hongyin Li ◽

Hailong Jiang ◽

Wenwu Zhang ◽

Peng Liu ◽

Shanshan Wang ◽

...

Keyword(s):

Resilient Modulus ◽

Asphalt Pavement ◽

Asphalt Mixture ◽

Crumb Rubber ◽

Field Investigation ◽

Compression Tests ◽

Modified Asphalt ◽

Asphalt Mix ◽

Low Temperature Cracking ◽

Indirect Tensile

Resistance of asphalt mix to low-temperature cracking and rutting at high temperature is very important to ensure the service performance of asphalt pavement under seasonal changes in temperature and loading. However, it is challenging to balance the improvement of such resistance by using additives, e.g., anti-rutting agent (ARA). This study focuses on improving the flexibility of anti-rutting asphalt mix by incorporating crumb rubber (CR) and ARA. The properties of the prepared modified asphalt mix were evaluated in the laboratory by performing wheel tracking, three-point bending, indirect tensile, and uniaxial compression tests. The experimental results showed that the dynamic stability of modified asphalt mix was significantly increased due to the addition of ARA and further improved by incorporating CR. The maximum bending strain at −10 °C was increased due to the contribution of CR. The results of indirect tensile strength and resilient modulus further indicated that the CR-modified anti-rutting mixture was more flexible. Moreover, the field observation and evaluation indicated that the CR-modified anti-rutting asphalt pavement met the standard requirements, better than normal asphalt mixture in many parameters. A conclusion can be made that incorporating CR in asphalt mixture prepared with ARA can improve pavement performance at both high and low in-service temperatures.

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Effect of Addition of Rubber Granulate and Type of Modified Binder on the Viscoelastic Properties of Stone Mastic Asphalt Reducing Tire/Road Noise (SMA LA)

Materials ◽

10.3390/ma13163446 ◽

2020 ◽

Vol 13 (16) ◽

pp. 3446

Author(s):

Wladyslaw Gardziejczyk ◽

Andrzej Plewa ◽

Raman Pakholak

Keyword(s):

Viscoelastic Properties ◽

Asphalt Mixture ◽

Crumb Rubber ◽

Low Noise ◽

Asphalt Mixtures ◽

Compression Tests ◽

Road Noise ◽

Stiffness Modulus ◽

Mastic Asphalt ◽

Stone Mastic Asphalt

The use of rubber granulate in the composition of asphalt mixtures, as well as the use of poroelastic layers, is indicated by many research centers as a factor with a positive effect on tire/road noise reduction. Attention is however paid to their lower structural durability compared to asphalt concrete (AC) or stone mastic asphalt (SMA). Stone mastic asphalt reducing tire/road noise (SMA LA) layers have also been recently used as low-noise road surfaces. The article presents the test results of viscoelastic properties of asphalt mixtures SMA8 LA, SMA8 LA containing 10%, 20%, and 30% of rubber granulate, with bitumen 50/70, bitumen 50/70 modified with styrene butadiene styrene (SBS) copolymer, crumb rubber, and mixtures with bitumen modified simultaneously with crumb rubber and SBS copolymer. The reference asphalt mixture was the porous asphalt (PA8). The presented results of water damage resistance, degradation resistance in the Cantabro abrasion loss test, stiffness modulus as a function of temperature and hysteresis loop proved that the amount of rubber granulate and the type of binder significantly affect the values of these parameters. Attention was paid to the possibility of using the results of uniaxial cyclic compression tests when determining the proportion of rubber granulate in SMA8 LA mixtures. Tests of hysteresis loops and stiffness modulus confirm much higher elasticity of SMA8 LA mixtures with rubber granulate as compared to mixtures without the addition of granulate.

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