Results 131 to 140 of about 312 (174)

Effect of ageing process on bitumen and rejuvenated bitumen [PDF]

Construction and Building Materials, 2017
Abstract In the last few decades, highway agencies and the paving companies have invested huge efforts on increasing the amount of reclaimed asphalt (RA) to be introduced in the production of new asphalt concrete (AC). This technique, so-called hot recycling of RA, offers several economical and environmental advantages tightly related to the ...
Andrea Grilli, Maurizio Bocci
exaly   +5 more sources

Ageing of rejuvenated bitumen in hot recycled bituminous mixtures: influence of bitumen origin and additive type

Road Materials and Pavement Design, 2019
The present study aims at investigating the evolution of the rheological properties of a primary bitumen with ageing (first service life), hot recycling (50/50 blending of virgin and aged bitumen, ...
Edoardo Bocci, Giorgia Mazzoni, Francesco Canestrari   +2 more
exaly   +3 more sources

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Full range temperature susceptibility of aged bitumen rejuvenated by polymer modified bio-derived rejuvenator

Materials and Structures/Materiaux Et Constructions, 2021
In this work, a polymer modified bio-derived rejuvenator consisting of bio-oil, polymer modifier, and other additives (plasticizer, cross-linking agent) was developed. Commercial rejuvenator (CR), bio-based rejuvenator (BR), and polymer modified bio-derived rejuvenator (PMBR) were applied to rejuvenate the aged base bitumen and styrene–butadiene ...
Tianling Wang, Minghui Gong, Gong Minghui   +2 more
exaly   +2 more sources

Insight into the critical evaluation indicators for fatigue performance recovery of rejuvenated bitumen under different rejuvenation conditions

International Journal of Fatigue, 2023
This study aims to propose critical fatigue indicators for evaluating the restoration effectiveness of various rejuvenators on the fatigue performance of aged bitumen.
Shisong Ren, Sandra Erkens
exaly   +2 more sources

Investigation on physical properties of waste cooking oil – Rejuvenated bitumen binder

Construction and Building Materials, 2012
Nowadays, the main problem pertaining to the use of the recycled asphalt pavement (RAP) material in hot mix asphalt (HMA) is the ageing of bitumen, which limits the percentage of applied RAP in the HMA.
Majid Zargar, Mohamed Rehan Karim
exaly   +2 more sources

Investigation of the cohesive behavior of water-intervened rejuvenated SBS-modified bitumen

Journal of Cleaner Production
When water interacts with bitumen, the diffusion and cohesion characteristics between the components of bitumen are negatively impacted. Molecular dynamics simulations were employed to construct various bitumen models, including bitumen–bitumen (without ...
Ke Shi, Feng Ma, Zhen Fu
exaly   +3 more sources

Chemical and rheological characteristics of rejuvenated bitumen with typical rejuvenators

Construction and Building Materials, 2021
Abstract In recent years, reclaimed asphalt pavement (RAP) is widely used in pavement construction because of its merits on both economic and environmental aspects. The use of RAP contributes to significant reduction on resource consumption, construction emission and the overall construction costs.
Wentong Huang, Yunfei Guo, Yu Zheng, Qile Ding, Can Sun, Jiangmiao Yu, Minye Zhu, Huayang Yu   +7 more
openaire   +1 more source

Bitumen rheology and the impact of rejuvenators

Construction and Building Materials, 2019
Abstract Bitumen is a material used in many industrial applications. It is the primary binding material for road pavements in asphalt. To improve sustainability, it is important to be aware of the finite nature of conventional oil reserves. As a cost and energy saving material, reclaimed asphalt pavement can help preserve our resources. Virgin binder
Domenic Ganter, Tommy Mielke, Marc Maier, Doru C. Lupascu   +3 more
openaire   +1 more source

Rheological properties of aged bitumen rejuvenated by polymer modified bio-derived rejuvenator

Construction and Building Materials, 2021
Abstract In this paper, a polymer modified bio-derived rejuvenator (PMBR) consisting of bio-oil, polymer modifier, and other additives (plasticizer, cross-linking agent) was investigated. The regeneration performance of PMBR on aged base and SBS modified bitumen was compared with that of commercial rejuvenator (CR) and bio-based rejuvenator (BR). The
Tianling Wang, Gang Xu, Chenguang Shi, Xinquan Xu, Yunhong Yu, Minghui Gong, Jun Yang   +6 more
openaire   +1 more source

Impact of rejuvenators on aging properties of bitumen

Construction and Building Materials, 2015
Abstract Potential reductions in construction costs and environmental emissions have made the use of reclaimed asphalt pavement (RAP) as aggregates in hot bituminous mixes an attractive alternative to the highway agencies. Currently, there is a trend towards increasing the RAP content in asphalt pavements and recycle 100% RAP in asphalt mixes ...
Aybike Ongel, Martin Hugener
openaire   +1 more source