A review of fatigue damage in bituminous mixtures: Understanding the phenomenon from a new perspective

Moreno-Navarro, Fernando; Rubio-Gámez, M.C.

doi:10.1016/j.conbuildmat.2016.03.126

Cited by 75 publications

(24 citation statements)

References 31 publications

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“…At high temperatures or low frequencies, bituminous materials behave in a more viscous way (ductile behavior), being susceptible to flow and to the appearance of plastic deformations. However, when the service temperatures are low or the loads have high frequencies, these materials behave more elastically (brittle fracture) and; therefore, they have a larger capacity to resist tensions without flow [3]. To reduce the impact of these external factors on asphalt pavements, polymer modified binders (PMB) are used to enhance their durability [4].…”

Section: Introductionmentioning

confidence: 99%

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

et al. 2019

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The use of polymer-modified binders in asphalt mixtures has become more widespread due to their reduced thermal susceptibility and improved rutting and fatigue resistance. Nevertheless, their high cost limits their application, thus making the use of reclaimed polymers (RP) an interesting alternative for both reducing price and extending the service life of pavements. This paper; therefore, presents a comparative review of the recycled polymers most commonly studied as bitumen modifiers: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ethyl vinyl acetate (EVA), and ground tire rubber (GTR), in order to facilitate their selection and extend the use of the bitumen. The differences in terms of melting point, mixing conditions, and maximum quantity of added polymer are analyzed. Moreover, their effect on the mechanical behavior of the asphalt binders and their stability with and without the use of additives is presented. According to the literature revision, the performance of the new binder is more influenced by the kind of polymer that was incorporated and the mixing conditions than by the base bitumen that was chosen, although rheological evaluation is needed to fully understand the modification mechanisms of the modified binder. In general terms, plastomers have a stronger effect in terms of increasing the stiffness of the bitumen in comparison with crumb rubber (elastomers), thus providing an improved rutting resistance. The joint use of polyethylene (plastomer) and crumb rubber (elastomer) can be an interesting option for its recycling potential and mechanical performance, although further study is needed to achieve stable bitumen across the entire range of temperatures; additives, such as maleic anhydride (MA), are commonly employed to improve the stability of the binder and enhance its characteristics, but their use could limit the economic benefits of using recycled materials.

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Section: Introductionmentioning

confidence: 99%

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

et al. 2019

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“…In this process, the bituminous binder has been recognized as the major factor because it represents the leading media of energy dissipation in asphalt mixtures (1). Molecular mobility could play a significant role in the appearance of fatigue damage in bituminous materials (2). During the hot mix asphalt fabrication, fine mineral material present in the aggregates is incorporated into the binder forming the mastic.…”

Section: Introductionmentioning

confidence: 99%

“…where s 0 is the stress amplitude imposed, g n is the strain amplitude measured, and d n is the phase angle (0 rad < d n < p/2 rad) between the input signal s(t)= s 0 •sin(w•t) and its output response g n (t)= g n •sin(w•td n ). Equation [2] is also valid under strain-controlled mode as long as the imposed amplitude is g 0 and the response is s n.…”

Section: Introductionmentioning

confidence: 99%

Fatigue performance evaluation of bitumen mastics reinforced with polyolefins through a dissipated energy approach

2020

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Polymers are known to improve the fatigue resistance of sphalt mastics. However, undesirable results can be obtained if the polymer is not successfully integrated into the bitumen binder. The goal of this work is to evaluate the effect of the addition of three selected polyolefins on their mastic’s fatigue performance. Low and high density polyethylenes (LDPE and HDPE) and polypropylene (PP) were chosen and used at the concentration of 4 wt.%. A dissipated energy approach was used in order to analyze the fatigue resistance, at 25 ºC, of the three composites studied. Dynamic time sweeps at and above the linear viscoelastic threshold were carried out. Based on that, the results demonstrated a better improvement when the LDPE was considered. For that binder, fluorescence optical microscopy observations at 25 ºC provided morphological evidence of a more homogeneous bitumen-polymer distribution which could be behind the improved fatigue behavior.

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“…Fatigue cracking can be classified into two main groups: alligator or bottom up fatigue cracking, longitudinal or top down fatigue cracking, and both may look identical on the pavement surface [6]. Alligator fatigue cracking initiates at the bottom of asphalt layer due to mechanical failure caused by the highest tensile stress and strain then propagates randomly upwards to the surface of pavement [7]. Thin pavement layers are most likely to exhibit bottom up fatigue cracking problems, which makes it a problem often aggravated by cold weather [8].…”

Section: Introductionmentioning

confidence: 99%

Modeling pavement damage and predicting fatigue cracking of flexible pavements based on a combination of deterministic method with stochastic approach using Miner’s hypothesis

Elnashar

Bhat

2019

SN Appl. Sci.

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Distress in flexible pavements has been a problem in many countries due to the increase in road traffic and vehicle loads. One of the most important distress modes in the design of pavements is fatigue cracking. Despite the fact that there have been considerable efforts in recent years in fatigue performance evaluation and the design process of flexible pavements, there is still a need for further studies to overcome the difficulty in predicting fatigue cracking in terms of damage distribution considering the uncertainty associated with the input parameters of pavement life and traffic repetitions. The purpose of this paper is to develop a methodology for modeling pavement damage and predicting fatigue cracking of flexible pavements based on a combination of deterministic method with stochastic approach using Palmgren-Miner's hypothesis. Four predictive models are introduced and used in a comprehensive case study to estimate the fatigue life of the pavement surface layer. The solutions are obtained through numerical integration based on Gaussian quadrature method. The results reveal that pavement damage has a broad range of distribution in which the actual traffic load repetitions has a Poisson distribution, while the traffic repetitions to failure follows a lognormal distribution. Keywords Damage • Fatigue cracking • Flexible pavement • Deterministic • Stochastic • Miner • Poisson process List of symbols A Average annual commercial vehicle per day C Laboratory to field adjustment factor D Damage index of fatigue cracking E Stiffness modulus of the asphalt layer F j (J) Cumulative distribution function of J F L Conversion factor f j (J) Probability density function of J h Pavement thickness K T Thickness correction factor k i Laboratory material coefficients L f Lateral distribution factor r t Annual traffic growth rate T Total number of periods V a

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A review of fatigue damage in bituminous mixtures: Understanding the phenomenon from a new perspective

Cited by 75 publications

References 31 publications

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

Fatigue performance evaluation of bitumen mastics reinforced with polyolefins through a dissipated energy approach

Modeling pavement damage and predicting fatigue cracking of flexible pavements based on a combination of deterministic method with stochastic approach using Miner’s hypothesis

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