Advanced rheological characterization of Reacted and Activated Rubber (RAR) modified asphalt binders

Kedarisetty, Sampat; Biligiri, Krishna Prapoorna; Sousa, Jorge B.

doi:10.1016/j.conbuildmat.2016.06.043

Cited by 43 publications

(13 citation statements)

References 16 publications

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“…According to Kedarwasetty et al (2016), generally, RAR composition consists of crumb rubber of about 62-65%, soft asphalt 20-25%, and AMBS 15-20%. Soft Based on Sousa et al (2013) explanation of RAR composition as follows: a. Softer bitumen Asphalt cement or graded bitumens such as Pen 100-200 to Pen 35/50, or AC 20, PG 52 to PG 70, can be used.…”

Section: The Composition Of Reacted and Activated Rubber (Rar)mentioning

confidence: 99%

Laboratory Study of the Use of Additional Reacted and Activated Rubber (RAR) Materials on Asphalt Concrete-Wearing Course (AC-WC) Mix

Purnomo

Suparman

Mulyono

2019

j. humanities. natural sciences. Information Science. Education

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<em>The development of infrastructure in Indonesia was increasing. The government focuses on boosting infrastructure development to create long-term economic growth. Therefore, a qualified infrastructure was a standard of an advanced rapidly economy. One of them is under construction was road and toll road infrastructure. As a result of the development was the occurrence of the increasing volume of vehicles on the road. Due to this resulting in an increased load reposition and also increased vehicle load on the road, it was then combined with a wet tropical climate or humid warm areas in Indonesia that have high rainfall and temperatures that can reach 38<sup>o</sup>C, resulting in structural damage such as cracks, rutting, stripping, and pothole. Performance from pavement also declined faster than the estimated plan. Roads in Indonesia mostly use the type of concrete asphalt mixture. Characteristics for concrete asphalt prioritize stability. In fact, the most important thing was the stability and durability of the road. Various ways can be done to overcome the road damage and acquire the ideal characteristics such as the use of added materials to Hot Mix Asphalt. To improve the performance of pavement characteristics, the use of added materials was expected to overcome problems that are affected by temperature, weather, increased vehicle volume, and increased traffic load. The added materials are to enhance Reacted and Activated Rubber (RAR) which was a developed crumb rubber to increase durability and keep the level of road pavement stability.</em>

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Section: The Composition Of Reacted and Activated Rubber (Rar)mentioning

confidence: 99%

Laboratory Study of the Use of Additional Reacted and Activated Rubber (RAR) Materials on Asphalt Concrete-Wearing Course (AC-WC) Mix

Purnomo

Suparman

Mulyono

2019

j. humanities. natural sciences. Information Science. Education

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“…The increased demands on bitumen performance have led to the improvement of its rheological properties by the addition of various types of modifying agents. The relevant information about bitumen and some products used to improve different properties of the final blends is beyond the scope of this paper but they can be found in several references [79][80][81][82][83].…”

Section: Bindersmentioning

confidence: 99%

Feasibility Assessment of the Use of Recycled Aggregates for Asphalt Mixtures

2018

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The use of recycled aggregates, manufactured from several by-products, to replace virgin aggregates in the production of pavement asphalt mixtures needs to be encouraged. Nevertheless, there are some concerns and uncertainties about the actual environmental, economic and mechanical performance resulting from the incorporation of recycled aggregates in asphalt mixtures. Therefore, this paper has the goal of discussing important features to help decision makers to select recycled aggregates as raw materials for asphalt mixtures. Based on the literature review carried out and the own previous experience of the authors, the article's main findings reveal that incorporating some of the most common recycled aggregates into asphalt mixtures is feasible, even in a life-cycle analysis perspective. Although some specific technical operations are sometimes necessary when using recycled aggregates in asphalt mixtures, some benefits in terms of environmental impacts, energy use and costs are likely to be achieved, as well as in what concerns the mechanical performance of the asphalt mixtures.

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“…Generally, for any process of modification of asphalt binders by crumb rubber or mortar by mineral fillers, the rubber or fillers are directly added with asphalt binder before the preparation of asphalt mixtures. Few examples of research have focused on the development of compound crumb rubber mineral filler asphalt composite prior to prepare of asphalt mixtures [17,18,19,20,21]. Besides, it has been found that there is an issue of the storage stability of modified asphalt when modifiers such as crumb rubber and mineral fillers are added into asphalt binders.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite

2019

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A new treatment method of combined crumb rubber and steel slag modifier for asphalt binders was proposed in this work. The viscosity, rheological properties, and thermogravimetric analysis of modified asphalt mortar were then investigated. The modified asphalt composite was prepared in laboratory by two steps. Rubber powder was firstly added into hot asphalt flux to make rubber modified asphalt (RA), and then RA binders were wrapped with steel slag powder by granulation machine to make compound rubber and steel slag filler modified asphalt composite (RSAC). Test results showed that the viscosity–temperature susceptibility of RSAC was superior to that of modified asphalt binder with only one additive. The softening point differences of RSAC was 2.1 °C. The complex modulus and phase angle were significantly influenced by the addition of steel slag fillers. Creep tests show that a better anti-permanent deformation performance of RSAC can be obtained, which means a better low temperature performance could be predictable. The CAM (Christensen-Anderson-Marasteanu) and Burgers models can be used to describe the change of complex modulus and viscous-elasticity performance of RSCA. The lower value of me (0.6344) and R (0.1862) from the CAM model indicated that RSAC was slightly related to the sensibility of frequency. The higher value of λ∞ and E0 of RSAC indicated a better ability of shear-creep resistance.

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Advanced rheological characterization of Reacted and Activated Rubber (RAR) modified asphalt binders

Cited by 43 publications

References 16 publications

Laboratory Study of the Use of Additional Reacted and Activated Rubber (RAR) Materials on Asphalt Concrete-Wearing Course (AC-WC) Mix

Laboratory Study of the Use of Additional Reacted and Activated Rubber (RAR) Materials on Asphalt Concrete-Wearing Course (AC-WC) Mix

Feasibility Assessment of the Use of Recycled Aggregates for Asphalt Mixtures

Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite

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