mesostructural characteristics of asphalt mixture main

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Meso-structural characteristics of asphalt mixture main ...

2020-1-30  1. Introduction. Dense skeleton asphalt mixture (DSAM) is a type of heavy-duty traffic pavement material. The typical characteristics of the material structure are as follows: the coarse aggregate in the asphalt mixture constitutes the main skeleton; the fine aggregate, asphalt, and other admixtures constitute the asphalt mortar that fills the voids of the skeleton formed by the

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Meso-structural characteristics of asphalt mixture main ...

When creating asphalt mixture specimens using the wheel rolling method, the design criteria of the main skeleton structure meso-index should reach K s ≥ 80% and N n ≤ 37. The design criteria can be used as a reference basis for the design of DSAM with a nominal maximum particle size of 13.2 mm, ensuring that the coarse aggregates are ...

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Meso-structural characteristics of asphalt mixture main ...

For asphalt mixture samples created by the wheel rolling method, it was worth noting that the design criteria of the main skeleton structure meso-index should exceed 80% for K s and less than 37 for N n. This ensures that the coarse aggregates make contact with each other to form the desirable skeleton. In a nutshell, the study presented a ...

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Meso-structural characteristics of asphalt mixture main ...

Request PDF Meso-structural characteristics of asphalt mixture main skeleton based on meso-scale analysis To provide a reference for the gradation design of dense skeleton asphalt mixture ...

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(PDF) Gradual Meso-Structural Response Behaviour of ...

2019-6-14  of characteristics of the asphalt mixture main skeleton subjected to load using the digital image. processing (DIP) technique. Moreover, gradation optimisation measures and the design criteria of.

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Gradual Meso-Structural Response Behaviour of ...

2019-6-14  applied sciences Article Gradual Meso-Structural Response Behaviour of Characteristics of Asphalt Mixture Main Skeleton Subjected to Load Liwan Shi 1,2, Zhen Yang 2,3,*, Duanyi Wang 2, Xiao Qin 1,4, Xin Xiao 1,2 and Masley Kwaku Julius 2 1 School of Transportation and Civil Engineering and Architecture, Foshan University, Foshan 528225,

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A New Method for Designing Dense Skeleton Asphalt

2020-2-17  According to the author’s statistical analysis of the mesostructural characteristics of the main skeleton of different asphalt mixtures , by adjusting the gradation to increase the average coordination number and reduction of the C value, the meso parameter of the mixture can be effectively improved, and the quality of the main skeleton can ...

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Microstructural characteristics of asphalt concrete with ...

2017-6-29  The main objective of this paper is to evaluate the effects of asphalt concrete types on the microstructural characteristics at high-temperature. Suspend-dense structure and Skeleton-dense structure were selected to investigate the deformation of pavement at meso-scale. The internal microstructures of typical asphalt concretes, AC, SUP and SMA, were

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  The asphalt-aggregate ratio is closely related to the porosity of the mixture. The larger the asphalt-aggregate ratio is, the smaller is the mixture porosity. The asphalt-aggregate ratio also has a significant influence on the

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Investigation of mesostructural changes in bimsoil during ...

2018-10-20  In this paper, mesoscopic structural changes and the associated strain localization behaviors were investigated quantitatively using X-ray computerized tomography (CT) and ultrasonic measurement techniques. While the effects of rock blocks on the macroscopic mechanical of block-in-matrix soil (bimsoil) have been widely studied, the physical mesoscale

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Gradual Meso-Structural Response Behaviour of ...

2019-6-14  applied sciences Article Gradual Meso-Structural Response Behaviour of Characteristics of Asphalt Mixture Main Skeleton Subjected to Load Liwan Shi 1,2, Zhen Yang 2,3,*, Duanyi Wang 2, Xiao Qin 1,4, Xin Xiao 1,2 and Masley Kwaku Julius 2 1 School of Transportation and Civil Engineering and Architecture, Foshan University, Foshan 528225,

Get Price

A New Method for Designing Dense Skeleton Asphalt

2020-2-17  According to the author’s statistical analysis of the mesostructural characteristics of the main skeleton of different asphalt mixtures , by adjusting the gradation to increase the average coordination number and reduction of the C value, the meso parameter of the mixture can be effectively improved, and the quality of the main skeleton can ...

Get Price

Mesostructural Modeling of Dynamic Modulus and Phase

2019-5-22  The main objective of this paper was to develop a mesostructure-based finite element model of rubber modified asphalt mixture to predict both the dynamic modulus master curve and phase angle master curve under a large frequency range. The asphalt mixture is considered as a three-phase material consisting of aggregate, asphalt mortar, and air void.

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Effects of Aggregate Mesostructure on Permanent ...

2019-11-2  2.1. Materials. According to the Marshall mix design method based on the Chinese specifications [], a dense-graded asphalt mixture, AC-20, was prepared in the laboratory.Aggregate gradation with a nominal maximum aggregate size of 19 mm is shown in Figure 1.Based on the Marshall mix design method, the volumetric properties of the AC-20

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Morphological simplification of asphaltic mixture ...

2021-5-4  In comparison, a polygonal representation of the mixture, called a simplified model (denoted M s), maintains the main shape characteristics of the aggregates and asphalt mortar, which facilitate the improvement of simulation efficiency. Therefore, the difference in the simulation solutions of the original and simplified models should be ...

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  The asphalt-aggregate ratio is closely related to the porosity of the mixture. The larger the asphalt-aggregate ratio is, the smaller is the mixture porosity. The asphalt-aggregate ratio also has a significant influence on the

Get Price

Investigation of mesostructural changes in bimsoil during ...

2018-10-20  In this paper, mesoscopic structural changes and the associated strain localization behaviors were investigated quantitatively using X-ray computerized tomography (CT) and ultrasonic measurement techniques. While the effects of rock blocks on the macroscopic mechanical of block-in-matrix soil (bimsoil) have been widely studied, the physical mesoscale

Get Price

Effect of Water Submergence on the Characteristics of ...

2018-1-19  Now a-days, the cost of asphalt pavement materials have been increasing excessively, which led to find alternative materials which must be cheaper than that of asphalt pavement materials. In addition, more concerns are pointed to reserving natural resources and reducing environmental impacts of using virgin asphalt binders, thus more attention is focused

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Best Practices for Storage and Handling Asphalt Emulsions ...

2021-12-1  Several types of heaters may be used for asphalt emulsion. The main requirement is that the heater be regulated to provide the desired temperatures and that it use indirect heat instead of direct ...

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What are Different Types of Asphalt? (with pictures)

Niki Foster Rolled asphalt is made from different solid materials such as sand, gravel, or recycled concrete, with an asphalt binder. Asphalt is most well known as a road covering more technically termed asphalt concrete, but there are a few different forms in which the substance may appear.It is a naturally occurring material present in crude oil and in natural deposits, notably around ...

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Effects of Aggregate Mesostructure on Permanent ...

2019-11-2  2.1. Materials. According to the Marshall mix design method based on the Chinese specifications [], a dense-graded asphalt mixture, AC-20, was prepared in the laboratory.Aggregate gradation with a nominal maximum aggregate size of 19 mm is shown in Figure 1.Based on the Marshall mix design method, the volumetric properties of the AC-20

Get Price

Mesostructural Modeling of Dynamic Modulus and Phase

2019-5-22  The main objective of this paper was to develop a mesostructure-based finite element model of rubber modified asphalt mixture to predict both the dynamic modulus master curve and phase angle master curve under a large frequency range. The asphalt mixture is considered as a three-phase material consisting of aggregate, asphalt mortar, and air void.

Get Price

Morphological simplification of asphaltic mixture ...

2021-5-4  In comparison, a polygonal representation of the mixture, called a simplified model (denoted M s), maintains the main shape characteristics of the aggregates and asphalt mortar, which facilitate the improvement of simulation efficiency. Therefore, the difference in the simulation solutions of the original and simplified models should be ...

Get Price

[PDF] Properties of Asphalt Mixtures Containing RAP ...

A typical New Hampshire Department of Transportation (NHDOT) Hot Mix Asphalt (HMA) concrete mixture contains at least 15% Reclaimed Asphalt Pavement (RAP). The increasing cost of virgin asphalt and aggregate has increased the interest in using higher percentages of RAP in HMA mixtures. The purpose of this research project was to gain a better understanding of how

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Rheological, physicochemical, and microstructural ...

2021-6-1  Warm mix asphalt (WMA) is gaining increased attention in the asphalt paving industry as an eco-friendly and sustainable technology. WMA technologies are favorable in producing asphalt mixtures at ...

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  The asphalt-aggregate ratio is closely related to the porosity of the mixture. The larger the asphalt-aggregate ratio is, the smaller is the mixture porosity. The asphalt-aggregate ratio also has a significant influence on the

Get Price

Analysis and application research on volume parameters of ...

2021-11-13  What’s more, the new method of designing the porous asphalt mixture is verified to be not only applicable but also effective. On account of the structure characteristic of porous asphalt mixture, the relationships among the volume parameters of porous asphalt mixture by means of mathematical deduction and theoretical analysis are studied.

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Effect of Water Submergence on the Characteristics of ...

2018-1-19  Now a-days, the cost of asphalt pavement materials have been increasing excessively, which led to find alternative materials which must be cheaper than that of asphalt pavement materials. In addition, more concerns are pointed to reserving natural resources and reducing environmental impacts of using virgin asphalt binders, thus more attention is focused

Get Price

Best Practices for Storage and Handling Asphalt Emulsions ...

2021-12-1  Several types of heaters may be used for asphalt emulsion. The main requirement is that the heater be regulated to provide the desired temperatures and that it use indirect heat instead of direct ...

Get Price

What are Different Types of Asphalt? (with pictures)

Niki Foster Rolled asphalt is made from different solid materials such as sand, gravel, or recycled concrete, with an asphalt binder. Asphalt is most well known as a road covering more technically termed asphalt concrete, but there are a few different forms in which the substance may appear.It is a naturally occurring material present in crude oil and in natural deposits, notably around ...

Get Price