Investigation into the performance of asphalt mixture designed using different methods

Jiang, Yingjun; Deng, Changqing; Xue, Jinshun; Chen, Zhejiang

doi:10.1016/j.conbuildmat.2018.05.108

Cited by 30 publications

(9 citation statements)

References 18 publications

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“…Each asphalt layer was produced with the optimal asphalt content and the mixture density specified in the Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering (JTG E20-2011) [35]. To ensure the reliability of the rutting tests, the porosity difference in all slab specimens was maintained within 1% from that of the respective standard cylindrical specimens [37]. e demolded 18 cm thick slab specimen is denoted in Figure 3.…”

Section: Preparation Of the 18 CMmentioning

confidence: 99%

High‐Temperature Rutting Resistance of Inverted Asphalt Pavement Structure

Jiang

Zhang

Deng

et al. 2020

Advances in Civil Engineering

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To improve the high-temperature rutting resistance of asphalt pavements, an inverted asphalt pavement structure (IAPS), 4 cm AC-13 mixture + 8 cm AC-25 mixture + 6 cm AC-20 mixture + 54 cm cement-stabilized macadam, was proposed herein by considering engineering practice, theoretical calculation, and analysis. A rutting prediction equation of asphalt pavements was then proposed via rut-development trends found by laboratory 18 cm thick rutting test. Subsequently, the rutting resistance of the IAPS was evaluated. The results show that, compared with the traditional asphalt pavement structure (TAPS), 4 cm AC-13 mixture + 6 cm AC-20 mixture + 8 cm AC-25 mixture + 54 cm cement-stabilized macadam, the maximum shear stress of the IAPS can be reduced by ∼1.7% along with improvements in rutting resistance by ∼16% and ∼12% under wheel loads of 0.7 and 1.2 MPa, respectively. Wheel-load increase affects the rutting resistance of both structures in a similar manner: when the wheel load increases from 0.7 MPa to 1.2 MPa, the rut depths of both pavement structures increase by at least 63%. The IAPS clearly has better rutting resistance than the TAPS and is thus the better choice for asphalt pavement structure design.

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Section: Preparation Of the 18 CMmentioning

confidence: 99%

High‐Temperature Rutting Resistance of Inverted Asphalt Pavement Structure

Jiang

Zhang

Deng

et al. 2020

Advances in Civil Engineering

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“…erefore, the Weibull distribution was used to analyze the fatigue test data of double-layer beam specimens in this study. e equivalent fatigue life (N) and failure probability (P) conform to the following equation [38,39,46]:…”

Section: Bending Fatigue Testmentioning

confidence: 99%

Effects of Paving Technology, Pavement Materials, and Structures on the Fatigue Property of Double‐Layer Pavements

Deng

Jiang

Han

et al. 2020

Advances in Materials Science and Engineering

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Double-layer paving technology, which is a new technology for construction asphalt pavements, has received increasing research attention for several years. However, few studies have focused on the effect of asphalt pavement layer thickness and mixture-type combinations on the fatigue properties of a double-layer pavement. Therefore, the fatigue properties of the double-layer and traditionally paved asphalt pavements were studied in this work. The effects of two paving technologies, three mixture combinations, and two asphalt layer thickness combinations on the fatigue properties of asphalt pavements were studied through bending beam tests, and a fatigue equation of different asphalt pavements was established using the two-parameter Weibull distribution. Subsequently, the fatigue lives of different pavements were compared and analyzed under the same cyclic load. Results indicate that the flexural strength and fatigue life of the double-layer pavement increased by at least 10% and 54%, respectively, compared with those of a traditionally paved pavement structure. The goodness of fit of the equation established using the Weibull distribution exceeded 0.90. For the traditional paving technology, compared with the pavement structure combination of 4-cm AC-13 surface layer/6-cm AC-20 bottom layer, the fatigue life of a 3-cm AC-13 surface layer/7-cm AC-20 bottom layer can be increased by at least 8%, while the fatigue lives of other pavement structures are reduced significantly. The results also indicate that the fatigue life of the double-layer pavement structure with the 3-cm AC-13 surface layer/7-cm AC-20 bottom layer can be increased by at least 114% compared with that of the traditionally paved pavement structure (4-cm AC-13 surface layer/6-cm AC-20 bottom layer). Additionally, the fatigue lives of other pavement structures can be improved. To effectively improve the fatigue life of an asphalt pavement, a double-layer pavement structure with the 3-cm AC-13 surface layer/7-cm AC-20 bottom layer combination is recommended.

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“…In theory, the aggregate in the cold-recycled mixtures will gradually change from a relative static state to a relative motion state under the vibration pressure waves generated during the vibration process [25,26,29]. As internal friction resistance decreased in the CEAMs, the aggregate could fully move and interlock to form a dense framework structure.…”

Section: Fatigue Life Analysismentioning

confidence: 99%

“…The vertical vibration testing method (VVTM) displays good simulation of the working state of the vibration roller, and vertical vibration testing equipment (VVTE) is economical [20,23]. VVTM has been successfully applied to several road materials in some studies, such as asphalt mixtures [24][25][26], RAP treated with cement or emulsified asphalt [27,28], and crushed rock stabilized with inorganic or organic binders [29][30][31]. The mixture samples molded by VVTM exhibits good mechanical and fatigue properties.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Properties of Cold-Recycled Emulsified Asphalt Mixtures Fabricated by Different Compaction Methods

et al. 2019

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This paper focuses on investigating the fatigue properties of cold-recycled emulsified asphalt mixtures (CEAMs) designed via two different compaction methods. First, two different CEAM compaction procedures were investigated and evaluated, including the modified Marshall compaction method (MMCM) and the vertical vibration testing method (VVTM). Indirect tensile fatigue tests were then performed to research the fatigue lives of CEAMs fabricated via the two methods. Finally, a Weibull distribution was applied to analyze the fatigue test results, and the fatigue equation was constructed. The results indicated that the average mechanical strength ratio between the CEAM samples produced by VVTM and the field core samples was >92%, whereas the average ratio of the specimens shaped by the MMCM was <65%. Compared with MMCM-molded CEAMs, VVTM-fabricated CEAMs showed decreased optimal moisture and emulsified asphalt contents by 11% and 9%, respectively, but exhibited improved moisture stability, anti-cracking performance, and anti-rutting performance by 4%, 12%, and 35%, respectively. The fatigue equations established on the basis of the Weibull distribution could effectively assess the fatigue life of CEAMs. The VVTM-manufactured CEAMs showed good resistance of stress change sensitivity and fatigue failure under different stress ratios. The VVTM-compacted CEAMs demonstrated increased fatigue life by 36% at a stress ratio of 0.45 and by 325% at a repeated load of 0.27 MPa compared with the MMCM-fabricated CEAMs.

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Investigation into the performance of asphalt mixture designed using different methods

Cited by 30 publications

References 18 publications

High‐Temperature Rutting Resistance of Inverted Asphalt Pavement Structure

High‐Temperature Rutting Resistance of Inverted Asphalt Pavement Structure

Effects of Paving Technology, Pavement Materials, and Structures on the Fatigue Property of Double‐Layer Pavements

Fatigue Properties of Cold-Recycled Emulsified Asphalt Mixtures Fabricated by Different Compaction Methods

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