There are many reasons that can cause sesame gray stone lesions,
Due to the presence of many pores and microcracks in Shandong sesame ash stone, it is easy for fine dust and pollutants in the air to infiltrate into the interior of the stone through capillary action, resulting in a shortened service life and weakened decorative effect. Generally speaking, the smaller the particle size and higher porosity of stone, the stronger its permeability and surface adsorption. Due to the unstable chemical properties of certain components of stone, it is prone to react with substances in the external environment. For example, some stone components contain iron ore, which can cause rusting and yellowing when exposed to moisture. Some stone components also contain alkaline substances, making them susceptible to corrosion by acidic oxides when exposed to air, resulting in alkali leaching. Stone components containing silicate minerals are easily damaged by materials containing alkaline substances, and so on.
1、 Due to oxidation, the color of sesame gray stone gradually fades. In addition, climate change causes damage to the stone, directly affecting the beauty and service life of sesame gray stone.
2、 Sesame gray stone undergoes a series of procedures such as mining and processing, which changes the original quality of sesame gray stone. If incorrect mining methods can cause cracks in the stone, then the iron tools used in the processing of the stone can also cause rust and other damage to the stone. Stone is easily affected by factors such as lichen and freezing during storage, transportation, and use, resulting in damage. On the other hand, inappropriate construction techniques and materials used in construction can also have a certain impact on stone, such as the use of certain stone adhesives that may cause yellowing. This leads to the occurrence of lesions in sesame gray stone, and secondly, due to the influence of the surrounding environment after installation and use, it ultimately leads to the occurrence of lesions in sesame gray stone.
3、 When some iron ore substances are abundant inside the sesame gray stone, it may cause whitening and even alkali bleeding, which is due to improper waterproofing treatment in the early stage. It is precisely because the interior of the stone has been infiltrated with moisture that the discoloration of the sesame gray stone is caused.