Optimization design of cold patching asphalt liquid based on performance experiments and statistical methods

Wei, Hui; Wang, Yudan; Li, Jue; Zhang, Yuhao; Qian, Guoping

doi:10.1016/j.conbuildmat.2023.131881

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…The test used Sinopec's "Donghai Brand" A-70 matrix asphalt. The performance indicators are consistent with the basic performance of the paper published by the same research group [26]. Its fundamental properties meet the specification requirements of China.…”

Section: Raw Materials and Experimental Design 21 Asphalt And Aggregatessupporting

confidence: 81%

Effect of aggregate type based on dynamic shear rheometer on aggregate asphalt-interface interaction

Gong,

Ma,

Qian

et al. 2024

Preprint

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In order to study the effects of different lithologic aggregates on the interaction between aggregate-asphalt micro interface, the researchers conducted microscopic tests to analyze the aggregates' chemical composition, micromorphology, and micro roughness. Metal plates were also used as a control group for comparison. In addition, the researchers used a contact angle measuring instrument to investigate the coating effect of asphalt and aggregate at high and medium temperatures. The mechanical properties of the aggregate-asphalt-aggregate system under various adhesion conditions were comprehensively explored through dynamic shear rheology tests and direct tensile tests of the aggregate-asphalt interlayer. The results showed that the microscopic coating effect of asphalt and aggregate and the micro-roughness of the aggregate had a nuanced relationship. The basalt-asphalt interface was found to have good high-temperature properties, while the limestone-asphalt interface demonstrated optimal medium-temperature properties. Lastly, the granite-asphalt interface was found to have the best low-temperature crack resistance.

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Section: Raw Materials and Experimental Design 21 Asphalt And Aggregatessupporting

confidence: 81%

Effect of aggregate type based on dynamic shear rheometer on aggregate asphalt-interface interaction

Gong,

Ma,

Qian

et al. 2024

Preprint

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“…Response surface methodology (RSM) represents a mathematical and statistical approach employed in the design of experiments, the mathematical modeling of variables (both univariate and multivariate), the evaluation of independent variables, and the optimization of procedures [24]. This method has been successfully applied in several fields, including civil engineering, mechanical and materials engineering, biology, and earth science [25][26][27]. In recent years, RSM has been found to have applications in the design and optimization of asphalt materials.…”

Section: Introductionmentioning

confidence: 99%

Optimization Design and Mechanical Performances of Plant-Mix Hot Recycled Asphalt Using Response Surface Methodology

Liu,

Wang,

et al. 2023

Materials

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This study aimed to explore the influence of material design parameters on the physical and mechanical properties of recycled asphalt. A Box–Behnken design was employed to determine the optimal preparation scheme for 17 groups of recycled asphalt. The effects of styreneic methyl copolymer (SMC) regenerant content, styrene–butadiene–styrene (SBS)-modified asphalt content, and shear temperature on the mechanical properties of recycled asphalt were analyzed using conventional and high/low-temperature rheological tests. The optimal processing parameters were determined by a response surface model based on multiple response indexes. The results revealed that the SBS-modified asphalt content had the most significant effect on the penetration of recycled asphalt. An increase in SMC regenerant content led to a gradual decrease in the rutting factor, while SBS-modified asphalt content had the opposite effect. The usage of SMC regenerant helped to reduce non-recoverable creep compliance by adjusting the proportion of viscoelastic–plastic components in recycled asphalt. Furthermore, the stiffness modulus results indicated that the addition of SMC regenerant improved the recovery performance of recycled asphalt at a low temperature. The recommended contents of SMC regenerant and SBS-modified asphalt are 7.88% and 150%, respectively, with a shear temperature of 157.7 °C.

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Effects of different penetration‐grade asphalt binders on the microstructure, mechanical, and aging properties of cold‐mixed epoxy asphalt binder

Zhao,

Ding,

et al. 2024

J of Applied Polymer Sci

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The aim of this research was to investigate asphalt effects on the storage stability, mechanical properties and micro‐properties of cold‐mixed epoxy asphalt binder (CEAB). Firstly, four CEAB were prepared with four base asphalt types and storage stability, miscibility analyses were performed by fluorescence microscopy (FM). Then, cured CEAB and epoxy resin (ER) were treated by ultraviolet aging. Tensile test, dynamic mechanical analysis (DMA), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy were applied to clarify the mechanical properties and micro‐properties of aged and unaged CEAB. Also, bending beam rheometer (BBR) tests were conducted to study low‐temperature performance of CEAB. The results revealed that the CEAB prepared with asphalt with penetration grade 60 ~ 80 presented superior storage stability, miscibility, mechanical properties and that prepared with penetration graded 80 ~ 100 showed slightly better low‐temperature performance. Moreover, asphalt properties were found to have little impacts while epoxy resin played a key role in the mechanical properties of CEAB. Glass transition temperature () of the CEAB containing penetration‐graded asphalt 80 ~ 100 decreased more significantly than that with penetration‐graded asphalt 60 ~ 80, and it was also found that the CEAB prepared with base asphalt with higher molecular weight polydispersity index had better ductility performance.

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Optimization design of cold patching asphalt liquid based on performance experiments and statistical methods

Cited by 7 publications

References 29 publications

Effect of aggregate type based on dynamic shear rheometer on aggregate asphalt-interface interaction

Effect of aggregate type based on dynamic shear rheometer on aggregate asphalt-interface interaction

Optimization Design and Mechanical Performances of Plant-Mix Hot Recycled Asphalt Using Response Surface Methodology

Effects of different penetration‐grade asphalt binders on the microstructure, mechanical, and aging properties of cold‐mixed epoxy asphalt binder

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