Natural Rubber Modified Asphalt

Kamal, Mazlina Mustafa; Hadithon, Kamarul Arifin; Bakar, Rohani Abu

doi:10.1088/1755-1315/498/1/012001

Cited by 12 publications

(4 citation statements)

References 14 publications

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“…In prior research by [9], bitumen and rubber are combined in a 95:5 ratio. Before mixing, the bitumen is heated to 160˚C.…”

Section: Direct Mixingmentioning

confidence: 99%

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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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“…In prior research by [9], bitumen and rubber are combined in a 95:5 ratio. Before mixing, the bitumen is heated to 160˚C.…”

Section: Direct Mixingmentioning

confidence: 99%

“…The asphalt binder's G* parameter increased, the δ was decreased, and the resistance to rutting enhanced through the G*/sin δ parameter. [9] Cup lump 5 160 -1100…”

Section: Performance Of Mixture On Asphalt Bindermentioning

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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“…Infrared (IR) and thermogravimetric (TGA) analysis confirmed the presence of natural rubber in base bitumen. 18 Kashif et al utilized waste plastic including plastic bottles (PET) and gas pipes (PE) to modify bitumen properties. Five samples with different plastic percentages (0%, 5%, 10%, 15%, and 20%) were prepared and subjected to various physical tests.…”

Section: Literature Reviewmentioning

confidence: 99%

“Modification of bitumen properties using polyethylene glycol and titanium dioxide (TiO₂)”

Naeem

Sultan

Shakoor

et al. 2023

Polymers and Polymer Composites

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In this study, PEG and TiO2 were used to modify the properties of neat bitumen of grade 60/70. The physical and structural properties of the modified bitumen samples were investigated using penetration by grade, softening point, fire and flash point, ductility, and x-ray diffraction. Results showed that the physical properties of base bitumen were dependent on the polymer content. In the first phase bitumen was blended with PEG at different proportions (2%, 4%, 6%, and 8%). It was observed that stiffness in samples increases as we increase the polymer content which leads to a decrease in penetration and ductility values. The softening point increased with increasing polymer concentration. However, fire and flash point attained maximum value of 250°C and 240°C at 6% and decreased to 242°C and 238°C at 8% respectively. The optimal polymer content was found to be 6%. In a second phase, the effects of incorporation of various percentages of TiO2 (1.5% and 3%) in PEG modified bitumen have been investigated. XRD analysis has also been performed for nano and polymer modified bitumen. An increase in the interlayer spacing value (d) was observed which confirms the successful intercalation of PEG in neat bitumen. Incorporation of TiO2 in PEG modified bitumen affects the physical properties of polymer modified bitumen.

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“…Peningkatan kekuatan campuran ini diperkirakan karena penambahan lateks memperbaiki karakteristik aspal. Hal ini didukung oleh Usman et al (2019), Sani et al (2019), Kamal et al (2020), dan Abdulrahman et al (2020), yang menyatakan bahwa bahan lateks mampu memperbaiki sifat aspal, yaitu nilai penetrasi, titik lembek, stiffness, viskositas, dan ketahanan terhadap rutting.…”

Section: Metode Penelitianunclassified

Ketahanan Campuran Ac-Wc Menggunakan Lateks Terhadap Air

Sunarjono¹,

Hidayati²,

Pratama³

2020

JTrans

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This paper presents the results of research on the durability of Asphalt Concrete-Wear Asphalt (AC-WC) mixture using latex material to water immersion. Resistance to warm water immersion is intended to measure the durability of asphalt mixture in serving traffic loads against the influence of water and temperature factors. The use of latex material is intended to improve the performance of the mixture. This research uses a laboratory-scale test. The specimen of AC-WC added with latex was tested for its tensile strength using the Indirect Tensile Strength (ITS) test. Other specimens are immersed in water at 60°C with a continuous and periodic soaking system. The continuous immersion was carried out for 0, 24, 48, and 72 hours, while the periodic immersion was carried out for 12 hours soaked and 12 hours exposed alternately. The durability was analyzed using the Residual Strength Index indicator. The analysis shows that the addition of latex increased the tensile strength of the AC-WC mixture based on the ITS test results. The AC-WC mixture added with latex can increase its resistance to continuous and periodic immersion, by increasing the residual strength index and decreasing IKS with increasing immersion time. Continuous immersion has a greater impact on reducing IKS than periodic. In specimens without latex, the decrease in IKS values between continuous and periodic soaking has the same pattern, but in specimens with latex, the pattern is different. Keywords: asphalt concrete; latex; water immersion; Indirect Tensile Strength; Residual Strength Index. Abstrak Makalah ini menyajikan hasil penelitian mengenai ketahanan campuran beraspal Asphalt Concrete-Wearing Course (AC-WC) yang menggunakan bahan lateks terhadap rendaman air. Ketahanan terhadap perendaman air hangat dimaksudkan untuk mengukur daya tahan campuran aspal dalam melayani beban lalu lintas terhadap pengaruh faktor air dan temperatur. Penggunaan bahan lateks dimaksudkan untuk memperbaiki kinerja cam-puran. Penelitian ini menggunakan uji skala laboratorium. Kekuatan tarik benda uji AC-WC dengan lateks diuji menggunakan uji Indirect Tensile Strength (ITS). Benda uji yang lain direndam dalam air bertemperatur 60oC dengan sistem rendaman menerus dan rendaman berkala. Metode perendaman secara menerus dilakukan selama 0, 24 jam, 48 jam, dan 72 jam, sedangkan rendaman secara berkala dilakukan 12 jam direndam dan 12 jam diekspose secara bergantian. Tingkat keawetan dianalisis menggunakan indikator Indeks Kekuatan Sisa (IKS). Hasil analisis menunjukkan bahwa penambahan lateks meningkatkan kekuatan tarik campuran AC-WC berdasarkan hasil uji ITS. Ketahanan terhadap perendaman menerus dan berkala, campuran AC-WC menggu-nakan lateks meningkat, dengan meningkatnya indeks kekuatan sisa dan menurunnya IKS dengan bertambah-nya lama rendaman. Perendaman secara menerus memberi dampak yang lebih besar dalam menurunkan IKS dibanding perendaman berkala. Pada benda uji tanpa lateks, penurunan nilai IKS antara rendaman menerus dan rendaman berkala memiliki pola yang sama, namun pada benda uji dengan lateks pola penurunan nilai IKS berbeda. Kata-kata kunci: campuran beraspal; lateks; rendaman air; Indirect Tensile Strength; Indeks Kekuatan Sisa.

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Natural Rubber Modified Asphalt

Cited by 12 publications

References 14 publications

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

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

“Modification of bitumen properties using polyethylene glycol and titanium dioxide (TiO₂)”

Ketahanan Campuran Ac-Wc Menggunakan Lateks Terhadap Air

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Natural Rubber Modified Asphalt

Cited by 12 publications

References 14 publications

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

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

“Modification of bitumen properties using polyethylene glycol and titanium dioxide (TiO2)”

Ketahanan Campuran Ac-Wc Menggunakan Lateks Terhadap Air

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“Modification of bitumen properties using polyethylene glycol and titanium dioxide (TiO₂)”