How to prevent stone weathering

Whether it is natural stone or artificial stone are becoming widely used in modern construction industry a class of building stone products, and whether natural or man-made stone products stone products, which will inevitably occur in the course of
Weathering phenomena; weathered stone by stone usually refers to the natural environment in a variety of factors erosion leaving the stone disintegration, especially for outdoor decoration stone, once weathering phenomenon, then life will shrink
Short, then the process of how to use the stone to prevent weathering stone? It had weathered stone from factors initiate discussions.
1, lower plants role:
In water at a temperature suitable conditions, moss, mold and other organic matter sporangia with attached stone surface, began to develop the growth of the stone surface to form a wide variety of organic stain, these organisms in order to survive, and empty
Gas carbon dioxide, sulfur dioxide, nitrogen dioxide and other substances to struggle to change the surface texture of stone. In addition, after the death of these plants form organic acids and water accelerated aging stone, the stone erosion phenomenon.
2, ultraviolet radiation:
Stone itself has many pores and capillaries smaller capillary phenomenon is more significant. Therefore, the stone water, in the sun (UV) radiation, the rate of evaporation of moisture in the pores of the stone will accelerate, with water in the rate of erosion of the stone erosion of the stone material will be increased, thus caused by aging stone.
3, cleft stick effects:
Adhesive is a stone installation method, which remains in the adhesive surface of the stone due to the effects of aging of the adhesive cementation mineral stone produce relaxation, the stone interior relaxation, easy to peel off the surface, thereby accelerating the aging stone.
4, thermal effects:
Stone expands due to the heat during the day, at night the cold and contraction, resulting in thermal expansion and contraction phenomenon, and stone contains many different minerals, its expansion coefficient, and granular erosion or lump disintegration occurs.
5, the water freezing and thawing:
Freezing and thawing of water can make stone weathering: temperature dropped to 00C below the water freezes, causing ice water after the rapid expansion of the stone, the stone disintegration fragmentation.
Therefore, in order to prevent weathering of stone, you have to take appropriate measures in accordance with the physical causes of weathering were the only way to prevent the use in the construction industry weathered stone.