Salt weathering - SpringerLink
2014年1月1日 · Salt weathering is a geomorphic process resulting in the physical disintegration of rocks or stones and in the fretting of their surfaces. It is mainly due to the growth and expansion of various salts crystals. Buildings and building stones can be attacked in a similar way.
Physical Weathering - Geosciences LibreTexts
During root growth, organic acids can form contributing to chemical weathering. Another expansive force that can break rocks is created by the growth of salt crystals. This process frequently happens near shorelines and in arid regions ie: beaches and deserts.
Salt mixtures in stone weathering | Scientific Reports
2023年8月16日 · Salt related weathering of stones has been attributed to pressures exerted by repeated cycles of crystallization within pores. Relative Humidity (RH) is a key driver for dissolution and...
A review of theoretical salt weathering studies for stone heritage
2021年5月7日 · This pressure is called crystallization pressure or crystal growth pressure and causes salt weathering in rocks, monuments, buildings, and other structures. The pressure is caused by the volume of the salt increasing against the confining force of the rock.
A perspective view of salt crystallization from solution in porous ...
2024年10月9日 · Salt crystallization from solution is the key factor to salt weathering, which often leads to various forms of deterioration, such as loss of cohesion, chalking, spalling,...
Salt related weathering of stones has been attributed to pressures exerted by repeated cycles of crystallization within pores. Relative Humidity (RH) is a key driver for dissolution and...
More precise theories should be developed to elucidate the complications of the mechanisms of salt weathering as well as to interpret the results of empirical studies. Keywords: Salt weathering theories, Crystal growth pressure, Hydration, Thermal expansion of salt.
(PDF) Salt weathering: A selective review - ResearchGate
2002年1月1日 · In order to navigate such a vast collection of data and knowledge, this article describes the multidisciplinary nature of the study of salt damage to porous building materials, …
Salt Crystal Growth as Weathering Mechanism of Porous Stone …
It is well known that in porous stones, NaCl precipitation on and beneath a surface depends on the solution supply and the evaporation rate according to the microclimate and the effective pore structure. In the present work, the study of salt crystal growth mechanisms in large heterogeneous systems like porous stone masonries is attempted.
NaCl-related weathering of stone: the importance of kinetics and salt …
2021年4月14日 · Salt weathering is one of the most important causes of deterioration in porous materials. The amount of salt crystallization cycles is influenced by different climatic environments and the properties of salt mixtures. Sodium chloride in droplet and capillary experiments show a minimum time of 30 min for dissolution.