Investigation of water ingress into uncracked and cracked cement-based materials using electrical capacitance volume tomography

Application of foam assisted water-alternating-gas flooding and quantification of resistivity and water saturation by experiment and simulation to determine foam propagation in sandstone

“…With regards to the water security, the spread of unwanted fluids in groundwater, such as poly-fluoroalkyl substances (PFAS), their high mobility makes their distribution in the environment ubiquitous due to leaching into underground water, runoff into rivers and oceans and deposits in soils [ 26 ]. Electrical capacitance volume tomography (ECVT) can therefore it is a powerful approach to detecting water saturation in porous materials [ 27 ]. The propagation of groundwater is different in different environments as it moves from one point to another because chemical weathering and ion exchange control groundwater chemistry, in which Na is released with the replacement of Ca at the beginning of groundwater movement.…”

Enhanced recyclability of waste plastics for waterproof cementitious composites with polymer-nanosilica hybrids

“…Non-destructive detecting methods of water penetration and distribution in CBMs have been greatly advanced to deepen the understanding of capillary sorption and waterproofing performance [64,65]. Water ingress in CBMs was successfully visualized in 3D for cracked and uncracked specimens using a technique known as electrical capacitance volume tomography (ECVT) [66]. While documents on Gamma ray (c) attenuation suggested that results would be more accurate for porous materials with densities much higher than that of a typical concrete [67,68].…”