Obtaining the fatigue laws of bituminous mixtures from a strain sweep test: Effect of temperature and aging

López-Montero, Teresa; Recasens, José Rodrigo Miró; Pérez-Jiménez, Félix

doi:10.1016/j.ijfatigue.2017.03.036

Cited by 8 publications

(2 citation statements)

References 21 publications

(27 reference statements)

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“…In particular, BF is more effective within SMA-13. The fatigue life of SMA-13 and AC-13 decreases with the increasing strain control levels, regardless of whether BF is added or not, which is in accordance with some other researchers' findings [31,32].…”

Section: Four-point Bending Fatigue Test Resultssupporting

confidence: 92%

Influence of Basalt Fibers on the Crack Resistance of Asphalt Mixtures and Mechanism Analysis

Meng

2022

Materials

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The paper aims to investigate the influence of basalt fiber (BF) on the crack resistance of the asphalt mixture and conduct a mechanical analysis. First, two typical asphalt mixtures, namely AC-13 and SMA-13, were designed. The impact of BF on the mixture design results was analyzed. Then, several macroscopic tests, namely the four-point bending test, indirect tensile test, and semicircular bending test (SCB), were conducted to assess the effect of BF on the cracking resistance of asphalt mixtures. Finally, the influence of BF on the cracking resistance of asphalt mixtures was analyzed based on an environmental scanning electron microscope (ESEM) observation. The results show that: (1) BF increases the optimal asphalt content of AC13 and decreases the optimal asphalt content of SMA-13, which is caused by the different asphalt-absorption capacity of BF and lignin fiber (LF). (2) BF enhances both the fatigue crack resistance and temperature crack resistance of asphalt mixtures. The enhancement on the SMA-13 is more significant, indicating that the enhancement of BF on asphalt mixtures is related to the type of aggregate gradation. (3) BFs in the asphalt mixture lap each other to form a spatial network structure. Such structure can effectively improve the crack resistance of the mixture by dispersing the load stress and preventing the flow of asphalt mastic. The study results provide an effective method to design crack-resistant asphalt mixtures.

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Section: Four-point Bending Fatigue Test Resultssupporting

confidence: 92%

Influence of Basalt Fibers on the Crack Resistance of Asphalt Mixtures and Mechanism Analysis

Meng

2022

Materials

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“…These two strain values may be used to sketch an approximation of the fatigue law of the material [22]. The fatigue laws obtained through this procedure were compared with those obtained by applying the classical method based on time sweep tests, showing a good agreement between them [23,24]. These time sweep test results were also used to found a linear correlation between the complex modulus and the dissipated energy density that propagated through phases I and II.…”

Section: Introductionmentioning

confidence: 99%

Self-heating and other reversible phenomena in cyclic testing of bituminous materials

Nieto

Pérez-Jiménez

Riahi

et al. 2017

Construction and Building Materials

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This paper's objective is to evaluate the reversible phenomena that take place when asphalt materials are subjected to cyclic loads, i.e., self-heating and thixotropy. A strain sweep test was adapted to capture the stiffness variation of binders with the change in strain amplitude. The evolution of the internal temperature of the binder during the test was measured. Results show that the temperature can increase very significantly during cyclic testing and can account for a great part of all stiffness reduction captured during the test at different strain amplitudes. These results led to the conclusion that internal heating should be very important in asphalt mixtures as well. For that reason two types of time sweep tests were performed on the same mixture, with the introduction of rest periods in one of them long enough to let the inside temperature of the material lower after cycling. The results showed that the specimen that was allowed to cool down did not experience any loss of stiffness, while the specimen submitted to the conventional time sweep test failed in a few cycles. These results show the importance of the sequencing of loading and discourage the application of the Miner's law to estimate pavement life.Peer ReviewedPostprint (author's final draft

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DUSST: Development of a new stress sweep fatigue test for asphalt mixtures

Valdés-Vidal

Nieto

Pérez-Jiménez

et al. 2018

Construction and Building Materials

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Fatigue cracking is one of the main damage mechanisms that take place in asphalt pavements. However, its evaluation during the design stages of the asphalt mixtures is not usually considered due to the complexity of the tests required, their high costs and the long time needed to perform them. As a consequence, several research teams have been working on developing new test procedures to reduce the time and costs related to the fatigue characterization of asphalt mixtures. In this context, this paper presents the development of a new test procedure that consists of cyclic uniaxial tension-compression test in which the stress applied increases every 5,000 cycles. This way it is possible to evaluate the response of the mixture under cyclic loading at different stress levels in one test, and the failure of the mixture takes place in a shorter period of time than that required by the classical time sweep fatigue tests. This paper presents the results obtained in the application of this new methodology to a mixture frequently used in Chilean pavement structures (type IV-A-12 by Chilean standards) with three different asphalt binders, a conventional binder (CA-24), a high modulus binder (CA-HM) and a polymer-modified binder (CA-PM). Also, three different types of aggregates, obtained by two different shredding processes, were evaluated. The results achieved in the development of this Direct Uniaxial Stress Sweep Test (DUSST) show that it is a practical method with great potential. It allows fatigue behavior of asphalt mixtures at a shorter time to be characterized by means of important parameters, such as initial strain, failure strain, complex modulus and dissipated energy. In addition, a good sensitivity of the DUSST main parameters to variables evaluated was obtained.

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Obtaining the fatigue laws of bituminous mixtures from a strain sweep test: Effect of temperature and aging

Cited by 8 publications

References 21 publications

Influence of Basalt Fibers on the Crack Resistance of Asphalt Mixtures and Mechanism Analysis

Influence of Basalt Fibers on the Crack Resistance of Asphalt Mixtures and Mechanism Analysis

Self-heating and other reversible phenomena in cyclic testing of bituminous materials

DUSST: Development of a new stress sweep fatigue test for asphalt mixtures

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