Study of Pavement Performance of Thin-Coat Waterborne Epoxy Emulsified Asphalt Mixture

Cai, Xiaodan; Huang, Wenke; Liang, Juan; Wu, Kuanghuai

doi:10.3389/fmats.2020.00088

Cited by 11 publications

(4 citation statements)

References 24 publications

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“…e BPN drop of the skid resistance fog seal sample under a certain amount of wear shows that the skid resistance fog seal layer evaluated the skid resistance durability. erefore, the larger the BPN value in the wear process, the better the skid resistance performance, the slower the BPN decline, and the better the skid resistance durability [33,34]. Combined with the mass loss rate of the specimen after 100,000 abrasions, the durability of the skid resistance fog seal was evaluated comprehensively.…”

Section: Acceleration Wheel Wear Testmentioning

confidence: 99%

Development of the Fog Seal Layer Characterized by Durability in Terms of Skid Resistance

Jiang

Fan

et al. 2021

Advances in Materials Science and Engineering

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In this paper, based on the thermosetting properties, bonding performance, high-temperature water damage resistance, and aging resistance properties of epoxy-emulsified asphalt, the best formulation of epoxy emulsified asphalt as a skid resistance fog sealing asphalt is studied. Through accelerated wheel wear and other tests, the effects of the ratio of the amount of skid resistance particles to the amount of epoxy emulsified asphalt, the total amount of skid resistance fog seal asphalt, and the construction process on the skid resistance durability of the skid resistance fog seal were studied. The results show that the epoxy emulsified asphalt formula code A80 (E2) (emulsified asphalt : water-based epoxy = 80 : 20) is the best formula; when the proportion of emery and epoxy emulsified asphalt is 1 : 1, the British Pendulum Number (BPN) reduction rate of the skid resistance fog seal-test piece worn 100,000 times was 27.4%. Compared with the same period, the reduction rate was reduced by 4.6% on average, with the smallest mass loss rate and the best skid resistance durability. When the total amount of skid resistance fog seal asphalt is 1.2 kg/m2, the BPN reduction rate of the skid resistance fog seal specimen worn 100,000 times was 27.4%, which is an average reduction of 5.8% over the same period, and the mass loss rate is the smallest, and the skid resistance durability optimal. When using the premixed process, the BPN of the specimen was reduced by 13.2% after abrasion of 100,000 times. Compared with the “one asphalt and one sand” and “double asphalt and one sand” molded specimens, the mass loss rate was reduced by 15.0%, 4eU&7.2%, showing the best skid resistance performance. The results can provide guidance for the design and construction of AC-13 and other pavement skid resistance fog seals.

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Section: Acceleration Wheel Wear Testmentioning

confidence: 99%

Development of the Fog Seal Layer Characterized by Durability in Terms of Skid Resistance

Jiang

Fan

et al. 2021

Advances in Materials Science and Engineering

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“…To this end, numerous investigators have conducted studies aimed at improving the sturdiness, adhesion, durability and other attributes of cold mix. For instance, academics have utilized waterborne epoxy resin to modify emulsified asphalt as cold mix asphalt, which can prodigiously enhance high temperature and water stability (Bi et al, 2020;Cai et al, 2020). Incorporating polyurethane into rock asphalt to prepare cold mix asphalt can intensify strength and low temperature crack resistance (Yang, 2019).…”

Section: Introductionmentioning

confidence: 99%

Investigation on strength characteristics and mechanism of cold mix based on geopolymerization reaction

Fan,

Liang,

Sun

et al. 2023

Front. Built Environ.

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Cold mix asphalt is an energy-efficient and eco-friendly pavement material, yet its early strength is deficient. This study investigated the strength augment of cold mix asphalt through modification with geopolymer additives. Macro-strength was assessed via Marshall stability testing under varied geopolymer contents, curing durations, and water immersion conditions. Microscale analysis encompassed fluorescence microscopy to discern geopolymer-asphalt interactions and discrete element modeling to simulate the compression process. Results showed that stability rose and then fell as geopolymer content increased, with an optimal ratio of 4:3 between base asphalt and additive. Stability increased rapidly in the first 3 days of curing and accumulated at a slower rate afterwards. Fluorescence microscopy revealed that geopolymer bonded the asphalt to the aggregate surfaces. Modeling exhibited geopolymer resisted vertical loads and confined the aggregate. In summation, geopolymerization enhances cold mix strength by improving adhesion and generating a rigid 3D network encompassing aggregate particles. The discoveries provide guidance on formulating durable cold mix asphalt utilizing geopolymer additives.

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“…With the ever-increasing service time, different types and degrees of surface distress will appear on asphalt pavement, such as rutting and cracking , maintenance for pavement is required at this time. Preventive maintenance is regarded as the most economical maintenance strategy for asphalt pavement, which is widely used in the early distress treatment of asphalt pavement to restore pavement performance in time (Sun et al, 2020;Cai et al, 2020). As a commonly used preventive maintenance technique, micro-surface (MS) has been widely used for its advantages including waterproofing, sealing cracks, and filling ruts (Du et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Tire/Pavement Noise and Surface Texture of Low-Noise Micro-Surface Using 3D Digital Image Technology

Chen

Zheng

Wang³

2021

Front. Mater.

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As a common preventive maintenance technique for asphalt pavement, micro-surface (MS) has the advantages of waterproofing and crack sealing. However, issues such as the fact that the conventional MS generates large noise and the evaluation of the indexes of tire-road noise are relatively less studied. The traditional surface texture index cannot reveal the range and distribution of pavement surface texture, thus hindering research of low-noise MS. To study the mechanism of tire-road noise generated by MS, and propose the tire-road noise and surface texture indicators for MS. In this study, the mechanism of five low-noise MS was systematically analyzed and compared through surface texture and noise tests. Then, a three-dimensional digital texture model (3D-DTM) of MS surface texture was constructed using a series of digital image processing techniques, including grayscale identification, binary conversion, and noise reduction. The results show that optimizing the gradation, adding sound-absorbing materials, and improving the workability of construction can improve the noise reduction performance of MS, it is worth mentioning that the MS prepared with sound-absorbing materials and low-noise gradation has the greatest noise reduction effect, with a maximum reduction of 6.3 dB(A). In addition, it was also found that the 3D-DTM can well reflect the surface texture characteristics of MS. The probability of convex peak distribution (PCD) and the proportion of convex peak area (PCA) with peak heights greater than 0.25 mm (Kh ≥ 0.25), which are extracted from the 3D-DTM, can well reflect the surface texture, tire-road noise, respectively. The results show that the 3D-DTM is a promising tool to optimize the design of low-noise MS.

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Study of Pavement Performance of Thin-Coat Waterborne Epoxy Emulsified Asphalt Mixture

Cited by 11 publications

References 24 publications

Development of the Fog Seal Layer Characterized by Durability in Terms of Skid Resistance

Development of the Fog Seal Layer Characterized by Durability in Terms of Skid Resistance

Investigation on strength characteristics and mechanism of cold mix based on geopolymerization reaction

Evaluating the Tire/Pavement Noise and Surface Texture of Low-Noise Micro-Surface Using 3D Digital Image Technology

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