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http://dx.doi.org/10.14481/jkges.2015.16.11.5

Study on Correlation between Compressive Strength and Compressional Wave Velocity for CLSM According to Curing Time  

Han, Woojin (School of Civil, Environmental and Architectural Engineering, Korea University)
Lee, Jongsub (School of Civil, Environmental and Architectural Engineering, Korea University)
Cho, Samdeok (Korea Institute of Civil Engineering and Building Technology)
Kim, Jinhwan (Korea Institute of Civil Engineering and Building Technology)
Byun, Yonghoon (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Journal of the Korean GEO-environmental Society / v.16, no.11, 2015 , pp. 5-11 More about this Journal
Abstract
The development of Controlled Low Strength Material (CLSM), which is a highly flowable material, has been performed for the application of backfill. The objective of this study is to compare the compressive strength and compressive wave velocity of CLSM according to the curing time. To investigate the characteristics of the CLSM consisting of sand, silt, water, flyash, and CSA cement, uniaxial compression test and flow test were carried out. For the measurement of compressional waves, a cell and a couple of transducers were used. The test results show that the compressive strength increases with the curing time, while the increment of compressive strength decreases with the curing time. In addition, the compressive wave velocity increases with the curing time, and the correlation between the compressive wave velocity and compressive strength is similar to exponential function. This study suggests that the correlation between the compressive wave velocity and compressive strength may be effectively used for the estimation of compressive strength of the CLSM at early curing time.
Keywords
Controlled low strength material (CLSM); Compressive strength; Compressional waves; Curing time;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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