Ultrasonically enhanced physical properties of cement grout

Effect of Ultrasound on the Formation of a Lubrication Layer in Concrete Pumping

“…Several studies (Judina et al 2013;Shin et al 2015;Perters et al 2009;Azevedo et al 2012;Towler et al 2003) have indicated that ultrasound can increase the fluidity, accelerate the hydration reaction and increase the compressive strength of cementitious materials. Shin et al (2015) used ultrasonic energy incorporating 20 kHz frequency and 1,500 W energy to examine the physical properties of cement grout and reported that ultrasound enhanced significantly the compressive strength and flowability of grout, and reduced the viscosity of grout.…”

“…Shin et al (2015) used ultrasonic energy incorporating 20 kHz frequency and 1,500 W energy to examine the physical properties of cement grout and reported that ultrasound enhanced significantly the compressive strength and flowability of grout, and reduced the viscosity of grout. Peters et al (2009) investigated the workability of cement paste with ultrasound incorporating power ultrasound up to 1 GHz and 10,000 W energy, and noted that ultrasound reduced the air voids and maximum pore size and increased the fluidity and strength.…”