Pore structure and fractal dimension analysis of ancient city wall bricks in China

Freeze-thaw damage of architectural heritage grey brick materials based on fractal theory

“…Substituting formulas (7) and ( 8) into formula (6), respectively, the damage evolution equation of grey brick under varying freezing and thawing cycles can be obtained:…”

“…In the past few years, experts both domestically and internationally have performed substantial research to elucidate the weathering characteristics and mechanisms of bricks subjected to freeze-thaw cycles. These studies primarily investigate the damage patterns and degradation mechanisms of bricks under freezethaw cycles, utilizing both micro-and macroscopic approaches through laboratory simulation experiments [3][4][5][6] . The extent of damage caused by cycles of freeze-thaw in bricks is quantified by parameters, including mass loss rate, alterations in compressive strength, and variations in the relative dynamic modulus of elasticity [7][8][9][10][11][12] , and the life of bricks in the actual environment is predicted.…”

Effects of Clay Content on Non-Linear Seepage Behaviors in the Sand–Clay Porous Media Based on Low-Field Nuclear Magnetic Resonance

“…Xie et al explored the hydration behavior of sodium montmorillonite using LF-NMR [35]. Furthermore, researchers have employed LF-NMR to investigate pore structure [36], imbibition [37], volatilization [38], solute transport [39], and biological [40] aspects of porous media. However, research on the transformation of water state during seepage in porous media is still lacking.…”