Fatigue and Thermal Cracking of Hot and Warm Bituminous Mixtures with Different RAP Contents

Pham, Nguyen Hoang; Sauzéat, Cédric; Benedetto, Hervé Di; González-León, Juan A.; Barreto, Gilles; Nicolaï, Aurélia

doi:10.3390/su12239812

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Mechanical behavior [19,[34][35][36][37]] Construction (recycling) [38,39] Structural performance [19,20,25,40,41] Serviceability conditions [19,20,42] From the literature reviewed, it was also found that the largest natural stone produced in the world is marble, accounting for 50% of the world's natural stone produce [43]. Marble dust is usually dumped on riverbeds and possesses a serious environmental concern [44].…”

Section: Rap Studies Ref Literaturementioning

confidence: 99%

Development and Evaluation of Sustainable Bituminous Paver Blocks

Radhakrishnan

Dhurai

2023

Recycling

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Most road surfaces globally are constructed using bituminous materials. The construction of new roads and the maintenance of existing ones demand a huge amount of virgin natural aggregates. Depletion of resources that takes place during the construction of the road has an impact on cost and also on the environment. Hence, there is a need to reduce virgin aggregate use for bituminous pavement construction. This can be achieved by utilizing sustainable materials such as marble waste and reclaimed asphalt pavement (RAP) in hot mix asphalt (HMA)-type road construction. This research work is focused on sustainable development goal (SDG) 12, exclusively on the target number 12.5 which describes the recycling and reuse of materials. However, no investigations were seen to be reported on the integrated utilization of sustainable materials and RAP in bituminous paver blocks. The bituminous mixes were evaluated based on strength and compared with the control mix in this study. Bituminous paver blocks were then cast using sustainable materials and tested in the laboratory to assess the performance of the blocks through a compression test, Cantabro loss test, and wheel rut test. The test results gave satisfactory values; hence, these bituminous blocks can be used for service maintenance of the pavement structures. The study indicates that using sustainable material along with RAP in blocks can provide an eco-friendly, easily maintainable pavement system which makes it a key approach to SDG 9 as well, in terms of innovative infrastructure solutions.

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Section: Rap Studies Ref Literaturementioning

confidence: 99%

Development and Evaluation of Sustainable Bituminous Paver Blocks

Radhakrishnan

Dhurai

2023

Recycling

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“…Stienss et al [ 15 ] studied the influence of selected warm mix asphalt additives on low-temperature properties of asphalt mixtures. Pham et al [ 16 ] concluded that repeatability of the TSRST was good, based on the temperature and stress at failure. A decrease in air void content improved the low-temperature properties of asphalt mixtures with RAP.…”

Section: Introductionmentioning

confidence: 99%

Field Evaluation of High Modulus Asphalt Concrete Resistance to Low-Temperature Cracking

2022

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High-modulus asphalt concrete has numerous advantages in comparison to conventional asphalt concrete, including increased resistance to permanent deformations and increased pavement fatigue life. However, previous studies have shown that the construction of road pavements with High Modulus Asphalt Concrete (HMAC) may significantly increase the risk of low-temperature cracking. Those observations were the motivation for the research presented in this paper. Four test sections with HMAC used in base and binder courses were evaluated in the study. Field investigations of the number of low-temperature cracks were performed over several years. It was established that the number of new low-temperature cracks is susceptible to many random factors, and the statistical term “reversion to the mean” should be considered. A new factor named Increase in Cracking Index was developed to analyze the resistance of pavement to low-temperature cracking. For all the considered field sections, samples were cut from each asphalt layer, and Thermal Stress Restrained Specimen Tests were performed in the laboratory. Correlations of temperature at failure and cryogenic stresses with the cracking intensity observed in the field were analyzed. The paper provides practical suggestions for pavement designers. When the use of high modulus asphalt concrete is planned for binder course and asphalt base, which may result in lower resistance to low-temperature cracking of pavement than in the case of conventional asphalt concrete, it is advisable to apply a wearing course with improved resistance to low-temperature cracking. Such an approach may compensate for the adverse effects of usage of high modulus asphalt concrete.

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