Study on performance of recycled asphalt mixture based on blending state analysis of virgin and aged asphalt

Cai, Xiaodan; Zhang, Qiran; Yu, Huayang; Huang, Wenke; Wu, Kuanghuai; Yang, Guoliang; Xiu-ning, Bao

doi:10.1080/10298436.2023.2165658

Cited by 4 publications

(1 citation statement)

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“…(1) Marshall compaction test Marshall specimens were prepared for both RAP and HIRAM. As indicated in Tables 6 and 7, variables such as the compaction time, temperature, bitumen aging, binder content, mixing time, mixture temperature, and mixing order are considered [44][45][46]. The mixing order is illustrated in Figure 3, and bitumen aging was conducted through the rolling thin film oven test (RTFOT) and a pressure aging vessel (PAV), following the procedures outlined in JTG E20-2011.…”

Section: Compaction Characteristics Testmentioning

confidence: 99%

Hot In-Place Recycled Asphalt Mixtures: RAP Analysis, Compaction Characteristics and Field Evaluation

Wang,

Zhao,

Zheng

et al. 2024

Sustainability

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The substantial accumulation of reclaimed asphalt pavement (RAP) poses a pressing issue in road construction. The hot in-place recycling (HIR) technique has garnered widespread attention due to its high recycling rates of RAP and minimal environmental hazards. This study focuses on the RAP analysis, compaction characteristics, and field evaluation of hot in-place recycled asphalt pavements (HIRAP). Firstly, a novel test method of RAP analysis was proposed to evaluate the suitability of RAP. Subsequently, compaction tests reveal the compaction characteristics of hot in-place recycled asphalt mixture (HIRAM). Finally, the field performance of HIRAP was assessed. The research findings indicate that the RAP analysis method can accurately characterize the status of RAP. Increasing the RAP temperature improves the compaction characteristics of HIRAM. The field tests show that using HIR technology improves the performance of the pavement, in particular with a compaction of 99.7%. This study will establish a theoretical foundation for further promoting the HIR technique.

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Section: Compaction Characteristics Testmentioning

confidence: 99%