Analysis of the attenuative behaviour of accelerated cement based materials through a series of ultrasound Pulse Echo measurements

Ultrasound Non-Destructive Characterization of Early Hydration of Cement Pastes: The Effects of Water-Cement Ratio and Curing Temperature

“…Thanh's results were also validated for cement mortars [22][23][24][25]. In the same way, Young modulus is considered as a major mechanical property that describes the viscoelastic behaviour of cement pastes [6,16]. Thus, our results showed that Young modulus decreases linearly with increasing w/c ratio, as represented in Figure 12.…”

“…Ultrasound based methods have been used for the last decades to characterize early age hydration properties of cement based materials [1][2][3][4][5][6][7][8][9]. The ultrasound control systems usually used are mainly similar to P-wave transmission or Pwave reflection.…”

“…Although ultrasound methods permit to calculate several parameters than P-wave velocities [1,[5][6][7][8], still the P-wave velocities have been widely considered as a correlated parameter with hydration properties of cement materials [2,3]. In this research study, in addition to P-wave velocities, the Young modulus is also calculated to evaluate the viscoelastic behaviour of early age cement materials.…”

Effects of Temperature and Clay on Hydration Behavior of Mortar: A Study Through Ultrasound Technique

“…This method consists of different steps starting with propagation of ultrasound waves into the sample, followed by the acquisition of reflected ultrasound signals composed of different generated echoes to a further signal processing and measurements of ultrasound parameters using developed Labview software. The experimental setup was described in details in Khatib et al [7,8], and consists of a hardware section and a software section.…”

“…Typical curves of reference mortar sample prepared without any natural clay addition, cured at an ambient temperature of 25℃, (named later CM-T25), are shown in Figures 2 and 3. In our previous works [7,8,12,13], we studied the correlation between measured ultrasound parameters and the hydration properties of cement mortar using the pulse echo method. This ultrasound technique was used to identify the time of the end of setting time and the early hardening behavior of cement mortars.…”