ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 62, (2) 131 - 137 (2018)


EXPERIMENTAL STUDY ON DYNAMIC ELASTIC MODULI AND R-WAVE VELOCITIES OF EPOXY MORTARS UNDER DIFFERENT TEMPERATURES
 
Lu Xiaobin 1,2, Li Xiulin 2, li Meng 2b
 
1 State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, 3 Yuyuantan South Rd., Beijing 10038, China
2 Department of Structures and Materials, China Institute of Water Resources and Hydropower Research, 3 Yuyuantan South Rd., Beijing 10038, China

Keywords: Epoxy mortar, Dynamic elastic modulus, R-wave velocity, SASW
 

This paper studies the variation of the dynamic elastic moduli and R-wave velocities of epoxy mortars with different binder to sand ratios subjected to a wide range of temperature change. It is found that, unlike concrete, the dynamic elastic moduli and R-wave velocities of epoxy mortars all decrease with increasing temperature, and a clear "knee" at around 30 °C divides the curves into two approximately linear parts. Therefore, to guarantee a correct interpretation of the in-situ SASW results, the temperature-dependent R-wave velocities of epoxy mortars must be fully understood beforehand.


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doi: 10.13168/cs.2018.0004
 
 
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