Wei Xu1, Haopeng Li2, Xiaoyuan Liu3
1School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
2State Grid Shandong Electric Power Company Yantai Supply Company, Yantai 264000, China
3Grid Shandong Electric Power Company Liaocheng Chiping District Supply Company, Liaocheng 252100, China
In order to study the internal damage and static compressive strength of concrete under different water pressures, the wave velocity test and compressive test were carried out by NN-4B non-metallic ultrasonic testing analyzer and electro-hydraulic servo testing machine. The test results show that the high water pressure of concrete has an adverse impact on the development of its internal structure, and with the increase of high water pressure level, the slower the longitudinal wave passes through the specimen, the more serious the damage and deterioration of concrete, and the compressive strength decreases gradually with the increase of water pressure.
concrete, water pressure, wave velocity, compressive strength
Wei Xu, Haopeng Li, Xiaoyuan Liu. Study on wave velocity characteristics and compressive strength of concrete under different water pressure. Academic Journal of Architecture and Geotechnical Engineering (2021) Vol. 3, Issue 1: 46-51. https://doi.org/10.25236/AJAGE.2021.030108.
 Wang H, Wang L, Song Y, et al. Influence of free water on dynamic behavior of dam concrete under biaxial compression [J]. Construction & Building Materials, 2016, 112(jun.1):222-231.
 Liu Baodong, Li Pengfei, Li Lin, et al. Experiment study on influence of water content on concrete strength [J]. Journal of Beijing Jiaotong University, 2011, 35 (01):9-12.
 Bai Weifeng, Chen Jianyun, Sun Shengnan. Effect of moisture in pore on initial elastic modulus of concrete [J]. Journal of Dalian University of Technology, 2010,50 (05): 712-716.
 Wang Hailong, Li Qingbin. Micromechanical analysis of compressive strength and constitutive equation of wet concrete [J]. Journal of rock mechanics and engineering, 2006 (08): 1531-1536.
 T. GORZELAŃCZYK. Moisture influence on the failure of self-compacting concrete under compression [J]. Archives of Civil and Mechanical Engineering, 2011.
 Ranjith P G, Jasinge D, Song J Y, et al. A study of the effect of displacement rate and moisture content on the mechanical properties of concrete: Use of acoustic emission [J]. Mechanics of Materials, 2008, 40(6):453-469.
 Liu Yang, Zhao Mingjie. Research overview of the ralation between ultrasonic parameters and stress on rock [J]. Journal of Chongqing Jiaotong University, 2006 (03): 54-58.
 Dong Guihua. Study on ultrasonic detection of concrete internal hole size [J]. Journal of Yellow River Conservancy Technical Institute, 2016,28 (01): 24-27.
 Jiang Jibao, Huang Zhihong. Application of ultrasonic testing of concrete compactness [J]. Scientific and Technology Innovation, 2014 (27): 227 + 98.
 Du Shoulai, Li Zongli, Jin xueyang. Preliminary study on the effect of pore water pressure on the compressive strength of concrete [J]. Yangtze River, 2009,40 (03): 54-55 + 65.