When using stone railings, it's important to take protective measures to reduce damage from external factors. The external damage to stone railings can be categorized into human-caused corrosion and natural corrosion, as detailed below:

 

 

1. In modern industry, the discharge of waste gases, such as nitrogen oxides, carbon compounds, sulfides, and acidic substances, is gradually increasing. When these substances mix with rainwater, they form acid rain, which can corrode stone railings and reduce their lifespan.

 

2. Acidic or alkaline "waste residue" and "waste liquid" discharged from modern industry can erode stone railings, leading to corrosion.

 

3. During construction, accidental spillage of chemicals on stone railings can easily cause corrosion.

 

4. Improper use of maintenance agents while cleaning or maintaining stone railings can also lead to corrosion.

 

 

1. In nature, nitrogen, oxygen, and water vapor can combine under lightning to produce acid rain containing nitric acid, which causes corrosion of stone railings.

 

2. Certain conditions allow lower plants, like mosses, to absorb moisture and oxygen from the air, leading to the corrosion of stone railings.