Radiation Shielding Properties of Shotcrete

Abstract

Shotcrete is a concrete spraying of concrete or mortar that may be accomplished through either a dry-or wet-mix process. It is made of normal weight aggregates which have a density of approximately 2323 kg/m 3 . For the most part, shotcrete is used in underground excavations in rock and repair work in constructions. In this study, linear attenuation coecient (µ, cm −1 ) was measured for shotcrete produced with dry mix process. Measurements were carried out by gamma spectrometry containing NaI(Tl) detector and multichannel analyzer.

Some engineering characteristics of heavyweight shotcrete

“…After curing period for determining the ultrasonic pulse velocity of HSC 10 cm diameter core samples were taken from panels showed in figure 2 (a), (b),. [1]. Ultrasonic pulse velocity experiment was showed in figure 3.…”

“…In the dry-mix process, water and liquid admixtures are added at the end of the nozzle to the rest of the materials [1].…”