Whether it is natural stone or artificial stone, it has gradually become a kind of building stone products widely used in the modern construction industry, and whether it is natural stone products or artificial stone products, it will inevitably appear weathering phenomenon during use;

The weathering of stone usually refers to the erosion of stone by various factors in the natural environment, which makes the stone fall apart, especially for outdoor decoration. Once weathering occurs, the service life will be shortened, then in the process of using stone. How to prevent the weathering of stone? This has to start from the factors that cause the weathering of stone.

1. The role of lower plants:

Under the conditions of suitable water and temperature, the spores of moss, mold and other organic matter are attached to the surface of the stone, and begin to grow and develop, so that various organic spots are formed on the surface of the stone. These organic substances are used for survival and air. The carbon dioxide, sulfur dioxide, nitrogen dioxide and other substances in the fight against the surface texture of the stone. In addition, these plants form an organic acid with water after death and accelerate the aging of the stone, causing the stone to ablate.

2. Ultraviolet radiation:

The stone itself has many capillary pores, and the smaller the capillary, the more pronounced the capillary phenomenon. Therefore, after the stone absorbs water, under the radiation of sunlight (ultraviolet rays), the evaporation rate of water in the capillary pores of the stone is accelerated, and the erosion rate of the stone with the material which is eroded by the stone in the water is also intensified, thereby Causes the aging of stone.

3, cracking effect:

Adhesive is one of the stone installation methods. The viscose remaining on the surface of the stone causes the cemented mineral of the bonded stone to relax due to the aging effect, so that the interior of the stone is relaxed and the surface is easily peeled off, thereby accelerating the aging of the stone.

4. The role of heat:

The stone expands due to heat during the day, shrinks at night and shrinks, causing thermal expansion and contraction, and the stone contains many different minerals, and its expansion coefficient is different, and granular denudation or massive disintegration occurs.

5. Freezing and thawing of water:

The freezing and thawing effect of water can also weather the stone: the temperature drops below 00C, and the water forms ice, causing the stone to expand rapidly after absorbing water, causing the stone to collapse and break.

Therefore, in order to prevent the weathering of stone, it is necessary to take corresponding measures according to the physical reasons that cause it to weather, in order to prevent the weathering of stone used in the construction industry.

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