Potential Additives in Natural Rubber-Modified Bitumen: A Review

Rohayzi, Nurul Farhana; Katman, Herda Yati; Ibrahim, Mohd Rasdan; Norhisham, Shuhairy; Rahman, Noorhazlinda Abd

doi:10.3390/polym15081951

Cited by 11 publications

(6 citation statements)

References 90 publications

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“…The presence of polymer in reclaimed asphalt improves the adhesion between the asphalt and the aggregate, making the asphalt mix more resistant to cracking, which increases the ITS ratio and moisture resistance [25,26]. The polymers improve the adhesion between the asphalt and the aggregate, making it more difficult for water to penetrate the mix and weakening the bond between the asphalt and the aggregate, making it less susceptible to moisture damage [27].…”

Section: Indirect Tensile Strength and Moisture Sensitivitymentioning

confidence: 99%

Mechanical properties of asphalt mixtures containing reclaimed asphalt incorporating Acrylonitrile Butadiene Styrene (ABS)

Athiappan,

Murugasan,

Makendran

et al. 2023

Matéria (Rio J.)

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Huge accumulations of Recycled asphalt pavement (RAP), scarcity of bitumen obtained from natural resources, RAP causing environmental pollution, and increased construction of flexible pavement all over the world led the researchers to reuse the improved aged bitumen by modifiers. Hence, in this research, the reclaimed aged asphalt improved by ABS (5% weight of virgin bitumen) was partially replaced by virgin bitumen (10 to 60% with an increment of 10%) used in the asphalt mix, and mechanical properties such as stability, flow, rutting resistance, fatigue life, Indirect Tensile strength, and resilient modulus were investigated. The research concluded that the aged reclaimed asphalt containing 5% ABS can be partially replaced up to 30% by conventional virgin bitumen, exhibiting better performance without compromising the mechanical properties of the asphalt mix.

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Section: Indirect Tensile Strength and Moisture Sensitivitymentioning

confidence: 99%

Mechanical properties of asphalt mixtures containing reclaimed asphalt incorporating Acrylonitrile Butadiene Styrene (ABS)

Athiappan,

Murugasan,

Makendran

et al. 2023

Matéria (Rio J.)

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“…These distinctive qualities include elasticity, thermal stability, resilience, and the ability to tolerate high strain [2]. There are three primary different types of natural rubber which are natural rubber latex (NRL), epoxidized natural rubber (ENR) and a recently developed type called cup lump natural rubber (CLNR) [3], which is created when latex is left to coagulate in the presence of bacteria.…”

Section: Natural Rubber As a Bitumen Modifiermentioning

confidence: 99%

Review of Mixing Mechanism and Performance of Natural Rubber with Bituminous Materials

Gungat,

Hamsah,

Yusoff

et al. 2024

MATEC Web Conf.

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Road degradation is a common problem in Malaysia which caused by weather changes, expanding loads as well as the effects of ageing, moisture and temperature results in high maintenance expenses on conventional bitumen pavement. Therefore, it has been recommended on the modification of bitumen as a substitute technique to address this issue and extend the pavement’s lifespan. This study addresses the inadequacy of existing solutions by focusing on the direct mixing approach and the use of pre-treatment using chemical solvent and some additives specifically on epoxidized natural rubber, natural rubber latex and cup lump natural rubber (CLNR). Additionally, this study intends to give a brief summary of how bitumen performance is improved by the inclusion of additives or modifiers by emphasizing the key attributes of modified bitumen after the addition of modifiers. Further information is also provided on the quantity and application method of each addition in order to determine the ideal value for different applications. This study will examine the use of several additives based on past research, such as polyphosphoric acid, Zychotherm, as well as the use of toluene and xylene to maintain the homogeneity of the rubberized bitumen. Studies on the usage of cup lump natural rubber (CLNR) are not common, thus future study should investigate more closely at CLNR and its mixing technique. This research contributes to the field by providing insights into the practical application of modified bitumen for sustainable road construction, especially in regions with a significant rubber industry.

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“…At present, whether from the perspective of waste disposal or simply to improve the performance of bitumen, many scholars have undertaken work on the modification of bitumen using waste rubber powder [9,10]. It was found that waste rubber powder has many advantages as an asphalt modifier, such as improving the durability, fatigue resistance, and economic benefits of asphalt pavement [11][12][13].…”

Section: Of 13mentioning

confidence: 99%

Characteristics of Polyurethane/Waste Rubber Powder Composite Modifier and Its Effect on the Performance of Asphalt Mixture

Gao,

Zhao,

Zhao

2023

Sustainability

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To solve the problems of storage stability and the volatile organic compound emission of waste-rubber-powder-modified bitumen, the strategy of preparing composite modifiers using waterborne polyurethane coating for waste rubber powder was proposed in an early-stage work. However, the effect of polyurethane/waste rubber powder composite modifier on the performance of asphalt mixture is unclear, which limits the further popularization of this technology. Therefore, this work mainly investigates the characteristics of composite modifiers and their influence on asphalt mixture. The results indicate that the optimum ratio of polyurethane to waste rubber powder is about 1:1, which can give the composite modifier sufficient mechanical properties and acceptable economic benefits. The scanning electron microscopy images also confirm that polyurethane can densely encapsulate waste rubber powder. The physical properties experiment of bitumen shows that composite modifiers can increase the softening point and viscosity of bitumen but reduce the ductility and penetration of bitumen. Moreover, it was also found that composite modifiers can significantly improve asphalt mixtures’ resistance to permanent deformation and moisture damage. This can be attributed to the increase in the consistency of the asphalt binder due to the composite modifier. However, the anti-cracking properties of asphalt mixtures will be destroyed if the content of the composite modifier is too high. Therefore, it is necessary to balance the high and low temperature properties of asphalt mixtures when determining the dosage of composite modifiers in practical engineering. The results of this paper can provide a reference for the green application of waste-rubber-powder-modified bitumen.

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Potential Additives in Natural Rubber-Modified Bitumen: A Review

Cited by 11 publications

References 90 publications

Mechanical properties of asphalt mixtures containing reclaimed asphalt incorporating Acrylonitrile Butadiene Styrene (ABS)

Mechanical properties of asphalt mixtures containing reclaimed asphalt incorporating Acrylonitrile Butadiene Styrene (ABS)

Review of Mixing Mechanism and Performance of Natural Rubber with Bituminous Materials

Characteristics of Polyurethane/Waste Rubber Powder Composite Modifier and Its Effect on the Performance of Asphalt Mixture

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