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

Unclaimed
Shuai Qi

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: 10 April 2019 in Applied Sciences
Reads 0
Downloads 0

In order to study the influences of confining pressure and temperature on the shear properties of asphalt mixtures, triaxial tests were conducted at 40 °C, 50 °C, and 60 °C, with the confining pressure ranges from 0 to 1 MPa for the widely used continuous-graded AC (Asphalt Concrete)-13, open-graded OGFC (Open-Graded Friction Course)-13, and gap-graded SMA (Stone Mastic Asphalt)-13 asphalt mixtures in China. A nonlinear regression/prediction model of triaxial strength for asphalt mixtures was proposed. The results show that confining pressure and temperature had a significant effect on the shear resistance of asphalt mixtures. With increasing temperature, the shear strength of the asphalt mixture gradually decreased due to the decreasing of cohesion strength; the shear strength of the asphalt mixture increased with the increase of confining pressure. Meanwhile, the cohesion strength increased and the friction angle decreased gradually with the increase of confining pressure. When the confining pressure was close to 0.6 MPa, the Mohr–Coulomb failure envelope bended down, so the linear Mohr–Coulomb criterion is not suitable to describe the failure behavior of asphalt mixtures. Therefore, a power function failure envelope was put forward to characterize the nonlinear shear properties of asphalt mixtures. The nonlinear evolutional laws of shear parameters, which includes cohesion strength and friction angle, were also proposed for asphalt pavement material and structure design. Among these asphalt mixtures, the gap-graded SMA-13 asphalt mixture exhibited better performance on the resistance to shear failure, and it was recommended as the upper layer material to improve the shear performance of asphalt pavement.

ACS Style

Tuo Huang; Shuai Qi; Hongfu Liu; Huanan Yu; Sheng Li. Shear Properties of Asphalt Mixtures under Triaxial Compression. Applied Sciences 2019, 9, 1489 .

AMA Style

Tuo Huang, Shuai Qi, Hongfu Liu, Huanan Yu, Sheng Li. Shear Properties of Asphalt Mixtures under Triaxial Compression. Applied Sciences. 2019; 9 (7):1489.

Chicago/Turabian Style

Tuo Huang; Shuai Qi; Hongfu Liu; Huanan Yu; Sheng Li. 2019. "Shear Properties of Asphalt Mixtures under Triaxial Compression." Applied Sciences 9, no. 7: 1489.

Journal article
Published: 04 August 2018 in Applied Sciences
Reads 0
Downloads 0

In order to study the influence of freeze-thaw cycles on the multi-axial strength of AC (Asphalt Concrete)-13 and SMA (Stone Mastic Asphalt)-13 asphalt mixtures which are widely used in China, triaxial tests were carried out in the laboratory. Two nonlinear failure criterions under three-dimensional stress states in octahedral space were established. A linear model for engineering design and its simplified testing method were then presented. The three-dimensional failure criteria of asphalt mixtures after 0, 1, 3, 5, 10, 15, 20 freeze-thaw cycles were also proposed. The results indicated that the multi-axial strength decayed significantly after 20 freeze-thaw cycles. It is noteworthy that the strength degrades rapidly during the first 5 freeze-thaw cycles. Compared with AC-13 asphalt mixture, the SMA-13 asphalt mixture exhibits better performance on the resistance to freeze-thaw damage, and it is recommended as the upper surface layer material of pavement structure.

ACS Style

Tuo Huang; Shuai Qi; Ming Yang; Songtao Lv; Hongfu Liu; Jianlong Zheng. Strength Criterion of Asphalt Mixtures in Three-Dimensional Stress States under Freeze-Thaw Conditions. Applied Sciences 2018, 8, 1302 .

AMA Style

Tuo Huang, Shuai Qi, Ming Yang, Songtao Lv, Hongfu Liu, Jianlong Zheng. Strength Criterion of Asphalt Mixtures in Three-Dimensional Stress States under Freeze-Thaw Conditions. Applied Sciences. 2018; 8 (8):1302.

Chicago/Turabian Style

Tuo Huang; Shuai Qi; Ming Yang; Songtao Lv; Hongfu Liu; Jianlong Zheng. 2018. "Strength Criterion of Asphalt Mixtures in Three-Dimensional Stress States under Freeze-Thaw Conditions." Applied Sciences 8, no. 8: 1302.