Laboratory investigation of the recycled asphalt concrete with stable crumb rubber asphalt binder

Ding, Xunhao; Chen, Luchuan; Ma, Tao; Ma, Hongwei; Gu, Linhao; Chen, Tian; Ma, Yuan

doi:10.1016/j.conbuildmat.2019.01.114

Cited by 209 publications

(39 citation statements)

References 15 publications

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“…Nevertheless, all these studies are restricted to laboratory evaluations; no data on accelerated pavement testing evaluation are available (Zaumanis et al 2014, Tran et al, 2017, Mogawer et al, 2013, Ding et al, 2019.…”

Section: Full-scale Validation Of Bio-recycled Asphalt Mixtures For Rmentioning

confidence: 99%

Full-scale validation of bio-recycled asphalt mixtures for road pavements

Blanc¹,

Huard²,

Sotoodeh-Nia

et al. 2019

Journal of Cleaner Production

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Recycling of asphalt has become a well-established practice in many countries, however the road pavement industry remains a bulk consumer of extracted raw materials. Novel solutions that find root in circular economy concepts and life-cycle approaches are needed in order to enable optimisation of infrastructure resource efficiency, starting from the design stage and spanning the whole value chain in the construction sector. Itis within this framework that the present study presents a full-scale validation of asphalt mixtures specifically designed to ensure durability of flexible road pavements and at the same time enabling the reuse of reclaimed asphalt pavement (RAP) through the incorporation of bio-materials as recycling agent. These bio-recycled asphalt mixtures have been first designed in laboratory and subsequently validated in a real scale experiment conducted at the accelerated pavement testing facilities at IFSTTAR. Four pavement sections were evaluated: three test sections with innovative bio-materials, and a reference section with a conventional, high modulus asphalt mix (EME2). Two tests were realized: a rutting test and a fatigue test and for each of them the evolution of bio-recycled asphalt mixtures properties as well as the pavement deteriorations were recorded and studied. Evolution of the bio-asphalt mixtures was monitored for a 5 months period after paving by a bespoke nondestructive micro-coring, extracting and recovering methodology developed at the Western Research Institute (WRI). The structural health of the pavement sections was monitored through periodic falling weight deflectometer (FWD) as well as with strain gages and temperature sensors. As a result the three tailored bio-asphalt mixtures performed similarly or better than the control mixture, both in terms of property evolutions and durability.

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Section: Full-scale Validation Of Bio-recycled Asphalt Mixtures For Rmentioning

confidence: 99%

Full-scale validation of bio-recycled asphalt mixtures for road pavements

Blanc¹,

Huard²,

Sotoodeh-Nia

et al. 2019

Journal of Cleaner Production

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show abstract

“…Pouranian et al (2020) investigated environmental concerns with respect to the recycling of crumb rubber in bitumen and found that emissions could be reduced with the use of additives in warm mix asphalt (WMA) [53]. Ding et al (2019) utilized crumb rubber as the rejuvenator for reclaimed asphalt concrete (RAP) and observed improved low-temperature performances [54].…”

Section: Ground Tire Rubbermentioning

confidence: 99%

Recycling of Waste Materials for Asphalt Concrete and Bitumen: A Review

2020

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Waste management has become an issue of increasing concern worldwide. These products are filling landfills and reducing the amount of livable space. Leachate produced from landfills contaminates the surrounding environment. The conventional incineration process releases toxic airborne fumes into the atmosphere. Researchers are working continuously to explore sustainable ways to manage and recycle waste materials. Recycling and reuse are the most efficient methods in waste management. The pavement industry is one promising sector, as different sorts of waste are being recycled into asphalt concrete and bitumen. This paper provides an overview of some promising waste products like high-density polyethylene, marble quarry waste, building demolition waste, ground tire rubber, cooking oil, palm oil fuel ash, coconut, sisal, cellulose and polyester fiber, starch, plastic bottles, waste glass, waste brick, waste ceramic, waste fly ash, and cigarette butts, and their use in asphalt concrete and bitumen. Many experts have investigated these waste materials and tried to find ways to use this waste for asphalt concrete and bitumen. In this paper, the outcomes from some significant research have been analyzed, and the scope for further investigation is discussed.

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“…High temperature indirect tensile (HT-IDT) strength is a test that can be used to evaluate the rutting resistance of HMA mixtures [22][23][24][25][26][27][28][29]. The test was conducted at a temperature of 42 • C with a loading rate of 50 mm/min.…”

Section: Idt High Temperature Strengthmentioning

confidence: 99%

Performance Characterization of Semi-Flexible Composite Mixture

et al. 2020

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Semi-flexible composite mixture (SFCM) is developed based on a unique material design concept of pouring cement mortar into the voids formed by open graded asphalt mixture. It combines the flexibility of asphalt concrete and the stiffness of Portland cement concrete and has many advantages comparing to conventional roadway paving materials. The main objective of this paper was to evaluate the engineering properties of SFCM and assess the constructability of the SFCM. A slab SFCM sample was fabricated in the laboratory to simulate the filling of cement mortar in the field. Performance testing was carried out by indirect tensile (IDT) test because it was found to be able to correlate with the field performance of asphalt mixtures at low, intermediate, and high temperatures. They were used in this study to evaluate the thermal cracking, fatigue, rutting, as well as moisture resistance of SFCM. A control hot mix asphalt (HMA) mixture was used to compare with the results of SFCM. Based on the testing results, it was found that the designed SFCM showed good filling capability of cement mortar. SFCM had higher dynamic modulus than the control HMA. It had good resistance to rutting and moisture damage. Based on fracture work, SFCM showed better resistance to thermal cracking while lower resistance to fatigue cracking.

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Laboratory investigation of the recycled asphalt concrete with stable crumb rubber asphalt binder

Cited by 209 publications

References 15 publications

Full-scale validation of bio-recycled asphalt mixtures for road pavements

Full-scale validation of bio-recycled asphalt mixtures for road pavements

Recycling of Waste Materials for Asphalt Concrete and Bitumen: A Review

Performance Characterization of Semi-Flexible Composite Mixture

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