Effect of emulsifier content on the rheological properties of asphalt emulsion residues

Pang, Jinhui; Du, Shanyi; Chang, Runtian; Pei, Qiang; Cui, Dongxia

doi:10.1002/app.41806

Cited by 28 publications

(16 citation statements)

References 13 publications

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“…The thermal cracking temperature can be determined directly on the basis of the test. The fracture stress and the PG grade by ABCD can be calculated on the basis of Equations (1) and (2). The ABCD test results are displayed in Figure 10.…”

Section: Abcd Testmentioning

confidence: 99%

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Laboratory Evaluation of the Residue of Rubber-Modified Emulsified Asphalt

Zhou

Chen

et al. 2020

Sustainability

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Emulsified asphalt has been widely used in various surface treatment methods such as chip seal for low-volume road preservation. Using modified emulsified asphalt made it possible to use chip seal technology on medium- and even high-volume traffic pavements. The main objective of the study is to quantify the residue characteristics of rubber-modified emulsified asphalt and to assess the effectiveness of using crumb rubber to modify emulsified asphalt binder. The four emulsified asphalt residues used the distillation procedure. Then, the rheology characteristics of emulsified asphalt residue were evaluated. The Fourier transform infrared spectroscopy (FTIR) test analyzed the chemical change of emulsified asphalt during the aging procedure. The results indicate that the evaporation method cannot remove all the water in emulsified asphalt. The mass change during the rolling thin film oven (RTFO) process only represented the component change of emulsified asphalt binder residue. Both the high-temperature and low-temperature performance grade of the two emulsified asphalt binders with rubber were lower. The original asphalt binder adopted to emulsification had a crucial influence on the performance of emulsified asphalt. The rubber modification enhanced the property of the emulsified asphalt binder at low temperatures, and the improvement effect was enhanced as the rubber content in the emulsified asphalt was raised. The C=O band was more effective in quantifying the aging condition of the residue. The findings of this study may further advance the emulsified asphalt technology in pavement construction and maintenance.

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Section: Abcd Testmentioning

confidence: 99%

“…Emulsified asphalt is produced by dispersing asphalt globules in water with surfactant and some other minor ingredients [1,2]. Emulsified asphalt is mainly used for low-volume pavement preservation, which includes chip seal, tack coat, and hot-in-place recycling [3].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of the Residue of Rubber-Modified Emulsified Asphalt

Zhou

Chen

et al. 2020

Sustainability

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“…Similar to asphalt binders, emulsified asphalt residue is a viscoelastic plastic material. Rheological measurement has been proven to be a favorable approach for optimizing the recovery methods of emulsified asphalt residue [8][9][10]. Common residue recovery methods include distillation, evaporation, moisture analyzer balance (MAB) [11], and the SAFT (stirred air flow test with nitrogen) method [12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Evaporation Methods on the High‐Temperature Rheological and Fatigue Performances of Emulsified Asphalt Residues

Sun

Yue

Wang

et al. 2020

Advances in Materials Science and Engineering

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Cold recycling technology is a widely applied asphalt pavement rehabilitation technology. e properties of emulsified asphalt residues after water evaporates play an important role in the performance of the asphalt pavement. is paper investigates the rheological and fatigue properties of emulsified asphalt residues under different evaporation methods. Two different matrix asphalt binders and emulsifiers were selected to prepare the emulsified asphalt. Moreover, the direct heating method (DHM) and the EN13074 and ASTM D7497-09 evaporation methods were used to obtain emulsified asphalt residues. Furthermore, the linear viscoelasticity, the permanent deformation resistance, and the fatigue resistance were evaluated by the temperature sweep and frequency sweep tests, the multiple stress creep recovery (MSCR) test, and the linear amplitude sweep (LAS) test, respectively. e test results show that under the three evaporation conditions, the growth amplitude order of the rutting factor, recovery percent, complex modulus, and fatigue life of emulsified asphalt residues is ASTM D7497-09 > EN13074 > DHM, and as is the attenuation amplitude order of the nonrecoverable creep compliance and phase angle. e results reveal that the evaporation process leads to oxidation and hardening of the residues. e hardening degree of the ASTM D7497-09 evaporation method is higher than that of the EN13074 evaporation method, and the hardening degree of the EN13074 evaporation method is higher than that of the direct heating method. e rheological and fatigue performances of the emulsified asphalt residues depend on the matrix asphalt. Moreover, the residue that was prepared from 70# asphalt has good high-temperature and fatigue properties, but it has higher temperature sensitivity and stress sensitivity.

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“…The emulsifier and its interaction with cement controls the stability of the emulsion and the formation of the bituminous film [17]. By reducing the surface tension, the emulsifier influences the viscosity of the emulsion [18] and thus it improves the rheological properties and the workability of the mixture [19,20,21,22].…”

Section: Introductionmentioning

confidence: 99%

Mechanical behaviour of bitumen emulsion-cement composites across the structural transition of the co-binder system

Miljković

Poulikakos

Piemontese

et al. 2019

Construction and Building Materials

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The aim of this research was to understand the dependence of the mechanical behaviour of bitumen emulsion-cement composites on the structural transition of the co-binder system. The experimental programme mainly consisted of cyclic indirect tensile testing at a range of temperatures and frequencies, integrated by X-ray microtomography. The results showed the existence of a critical composition of the co-binder system at the bitumen to cement ratio between 1 and 2 at which the mechanical behaviour transformed from cement-dominated to bitumen-dominated. This was caused by both the percolation of the bituminous phase and the pore space, and the volume contraction of the co-binder system. However, this critical composition did not directly match with the percolation of the phases on the length scale of the mesostructure, but likely corresponded with the volumetric content of all elastic phases, with the aggregate playing a fundamental role.

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Effect of emulsifier content on the rheological properties of asphalt emulsion residues

Cited by 28 publications

References 13 publications

Laboratory Evaluation of the Residue of Rubber-Modified Emulsified Asphalt

Laboratory Evaluation of the Residue of Rubber-Modified Emulsified Asphalt

Investigation of the Effects of Evaporation Methods on the High‐Temperature Rheological and Fatigue Performances of Emulsified Asphalt Residues

Mechanical behaviour of bitumen emulsion-cement composites across the structural transition of the co-binder system

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