This page has only limited features, please log in for full access.

Unclaimed
Yanjuan Tian
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, South Erhuan Middle Section, Xi’an 710064, Shaanxi, China

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 04 August 2020 in Construction and Building Materials
Reads 0
Downloads 0

Cracking is one of the main forms of damage to asphalt pavement. The self-healing process of asphalt pavement is the inverse process of crack formation and development. Strengthening the self-healing ability of asphalt materials could restrain cracking and prolong the service life of asphalt pavement. Microcapsule self-healing technology has achieved good results in the field of microcrack repair and has promising research prospects. In this study, two kinds of microcapsules, CA-mic and E-mic, were prepared by in situ polymerization with a self-developed rejuvenator CA and modified epoxy resin as core materials. The micromorphology, thermal stability and chemical structure of the microcapsules were characterized by fluorescence microscopy (FM), scanning electron microscopy (SEM), laser particle size analyzer (LPSA), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The freeze-heating cycle test was adopted to evaluate the durability of the microcapsules. The results showed that the two prepared microcapsules were spherical in shape and uniform in particle size distribution, with compact encapsulation and good durability. Additionally, they could survive under high temperature during asphalt construction. The rheological test of bending beams showed that the low temperature crack resistance of asphalt was improved after adding two kinds of microcapsules. The “Fracture - Healing- Fracture” tests showed that the two microcapsules could enhance the self-healing ability of the asphalt, and the maximum self-healing rate of the CA-mic could reach 52% and that of the E-mic could reach 47%.

ACS Style

Yanjuan Tian; Mulian Zheng; Peng Li; Jinhao Zhang; Ruizhe Qiao; Cheng Cheng; Hailei Xu. Preparation and characterization of self-healing microcapsules of asphalt. Construction and Building Materials 2020, 263, 120174 .

AMA Style

Yanjuan Tian, Mulian Zheng, Peng Li, Jinhao Zhang, Ruizhe Qiao, Cheng Cheng, Hailei Xu. Preparation and characterization of self-healing microcapsules of asphalt. Construction and Building Materials. 2020; 263 ():120174.

Chicago/Turabian Style

Yanjuan Tian; Mulian Zheng; Peng Li; Jinhao Zhang; Ruizhe Qiao; Cheng Cheng; Hailei Xu. 2020. "Preparation and characterization of self-healing microcapsules of asphalt." Construction and Building Materials 263, no. : 120174.

Journal article
Published: 07 March 2019 in Coatings
Reads 0
Downloads 0

The heat-reflective coating for asphalt pavement is a functional layer applied on pavement surfaces to reduce heat storage in the pavement via reflecting sunlight, thus inhibiting pavement temperature rise. The objective of this study was to analyze the environmental thermal effect of the self-developed reflective coating, namely, functionally graded nanocomposite reflective coatings, for asphalt pavement. The thermal effects of heat-reflective coatings were compared and analyzed based on field tests. A heating model of the atmosphere layer near the road surface was established. Moreover, the influence of urban road temperature on the thermal comfort of the human body was analyzed. Results showed that the radiation heat of all heat-reflective coatings decreased around two-thirds, and the convective heat decreased nearly 50% when compared with the control asphalt pavement, and the temperatures of the pavement itself and the atmosphere layer were lowered. Additionally, the heat-reflective coating improved the thermal comfort of the human body. This indicated that the heat-reflective coating reduced ambient temperate and relieved the urban heat island effect (UHI) as well as improved the environmental thermal effect.

ACS Style

Mulian Zheng; Yanjuan Tian; Litao He. Analysis on Environmental Thermal Effect of Functionally Graded Nanocomposite Heat Reflective Coatings for Asphalt Pavement. Coatings 2019, 9, 178 .

AMA Style

Mulian Zheng, Yanjuan Tian, Litao He. Analysis on Environmental Thermal Effect of Functionally Graded Nanocomposite Heat Reflective Coatings for Asphalt Pavement. Coatings. 2019; 9 (3):178.

Chicago/Turabian Style

Mulian Zheng; Yanjuan Tian; Litao He. 2019. "Analysis on Environmental Thermal Effect of Functionally Graded Nanocomposite Heat Reflective Coatings for Asphalt Pavement." Coatings 9, no. 3: 178.

Journal article
Published: 30 May 2018 in Applied Sciences
Reads 0
Downloads 0

The objectives of the present study are to investigate the anti-skid performance of concrete pavement and to attempt to enhance its durability by two different methods: using a longitudinally-transversely grooved (LT) form, and using a self-developed composite curing agent containing paraffin and Na2SiO3 as the main ingredients. The friction coefficient (μ) was measured by self-developed equipment to evaluate the anti-skid performance of samples with three different groove forms (LT, longitudinally grooved (L), and transversely grooved (T)). Abrasion tests were then carried out to evaluate the durability of the anti-skid performance. The results indicated that anti-skid performance of LT samples was approximately 46.2% greater than that of T samples, but its durability was not as significant as that of T samples. However, the resistance to abrasion could be improved by using the aforementioned curing agent. Comparisons were carried out between samples sprayed the curing agent and control samples without any curing agent under standard conditions. It was found that the application of the curing agent increased the anti-skid durability of concrete by 35.4%~47.8%, proving it to be a useful and promising technique.

ACS Style

Mulian Zheng; Yanjuan Tian; Xiaoping Wang; Ping Peng. Research on Grooved Concrete Pavement Based on the Durability of Its Anti-Skid Performance. Applied Sciences 2018, 8, 891 .

AMA Style

Mulian Zheng, Yanjuan Tian, Xiaoping Wang, Ping Peng. Research on Grooved Concrete Pavement Based on the Durability of Its Anti-Skid Performance. Applied Sciences. 2018; 8 (6):891.

Chicago/Turabian Style

Mulian Zheng; Yanjuan Tian; Xiaoping Wang; Ping Peng. 2018. "Research on Grooved Concrete Pavement Based on the Durability of Its Anti-Skid Performance." Applied Sciences 8, no. 6: 891.