Kun Wang

Mr. Kun Wang

Ocean University of China, Qingdao, Shandong, China

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 January 2024 in Construction and Building Materials
Verified
Journal Article
Closed access
ZDZizhang Dong
Zizhang Dong
HPHuadong Peng
Huadong Peng
Tao LiuTao Liu
Tao Liu
KWKun Wang
Kun Wang
JZJianguo Zheng
Jianguo Zheng
XQXinyi Qiu
Xinyi Qiu

Verified
Journal Article
Open access
PDF file
KWKun Wang
Kun Wang
QMQingSheng Meng
QingSheng Meng
YZYan Zhang
Yan Zhang
PHPeng Huadong
Peng Huadong
Tao LiuTao Liu
Tao Liu
In order to reveal the evolution of bonding performance of HIRA (High Intensity and Rapid Agent) anchor solids with maintenance time, the evolution characteristics of bond strength and stress distribution at the interface between HIRA-based anchor solids and a geotechnical body under different maintenance times and the fine damage pattern of anchor solids were studied by an indoor pull-out test of anchor solids. The comparative analysis was performed with 42.5 grade ordinary Portland cement (hereinafter referred to as P.O 42.5). The results show that the early strength and rapid setting characteristics of HIRA type material are obvious, and the difference between its average peak bond strength and that of cement is 10.45 times. The shear stress distribution has obvious stress concentration characteristics, and the peak value will appear and shift with the increase in load, and the peak shift of the HIRA anchor solid occurs earlier than that of cement. Due to different stress levels, the damage of the HIRA anchor solid after being pulled out increases with the increase in maintenance time, while that of cement gradually becomes more severe. The overall damage of the HIRA material is generally lower than that of cement in the same period.

25 August 2022 in Applied Sciences
Verified
Journal Article
Open access
PDF file
HLHaifeng Li
Haifeng Li
KWKun Wang
Kun Wang
ZDZizhang Dong
Zizhang Dong
Tao LiuTao Liu
Tao Liu
To achieve the efficient, rapid construction of prestressed anchor cables, in this study, through an indoor pull-out test and field basic test, we investigated the mechanical behavior, expansion, drawing performance and bond properties of a new type of high-strength, fast anchorage agent. We analyzed the influence of the water material ratio and curing time on its performance and determined the corresponding construction. It was found that the new anchoring agent could be effectively applied in field construction and achieved a compressive strength of 30 MPa within 30 h. Moreover, during the solidification process, the hydration reaction node could be reached within 5–6 h when the material expansion was and the feedback to the water–material ratio were the strongest. In addition, in the drawing process, the anchorage agent exhibited a strong bond with the reinforcement and the rock layer, and the bonding of the anchorage agent to the rock layer was greater than that of the steel bar. Therefore, in order to provide anchorage, it is necessary to increase the contact area between the steel strand and the anchorage agent.