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Inquiry: "outside" the two major factors leading to stone disease - stone, natural stone - building material industry

Mention Stone To give a hard, solid, reliable feel. Stone With its outstanding features are the majority of consumers, are widely used in various decorative Decoration In. But in this tough exterior, who would think of stone it will fall ill? The reason is nothing more than "outside" the two factors. The internal causes of stone disease

Stone texture and structure: the existence of natural stone in both micro-cracks and hair, constant, daily fine will be adsorbed in the air dust and dirt, as the role of slowly infiltrated into the pores within the stone, while greatly reducing the decorative stone performance and service life, the smaller the pores, capillary effect and the stronger surface adsorption.

Relatively complex chemical composition: some stone elements play a role in easily with the external environment, so that the phenomenon of stone from corrosion or variation. Stone generally contain different levels of iron in the composition, by tidal erosion will produce yellow rust. Stone in the higher iron content, the more prone to rust high. In addition, most natural Marble The main component of carbonate, calcium carbonate and magnesium carbonate, as well as a small amount of alkaline oxide. Calcium carbonate and magnesium carbonate are relatively stable compounds, in the humid environment, trade and air in the acidic oxides such as carbon dioxide, sulfur dioxide, sulfur trioxide, nitrogen dioxide and other chemical reaction, change Marble The physical structure of the internal. Similar chemical damage will occur on the other stone, the lighter the stone surface will tarnish, or even color Fading, there scar; serious cases will decrease the hardness of natural stone, weathered surface spalling. Effects of external causes of stone disease stone decorative effect and service life of the external reasons, such as mining and processing, storage and transportation process and inadequate maintenance; install stone adhesive material used in the impact and the natural environment factors.

Storage and transportation of mining and processing: If the stone cracks and when the exploitation of mining was a less scientific way, it will greatly increase the probability of cracking stone; processing of iron tools used may produce rust spots left for the stone hidden , improper coolant will pollute the stone stone; storage and transportation process to maintain properly, will produce straw yellow rust and other contamination.

Install stone materials used for bonding the impact: If the installation of stone used Cement The wet paste paste paste method works, then Cement The alkaline soluble substances by water erosion and seepage along the pores on the surface of stone, and its basic compounds such as Ca (OH) 2 with CO2 or H2O in the air a chemical reaction to produce CaCo3 in the stone surface crystallization, the formation of salt efflorescence phenomenon. In addition, because of cement hydration salts has generated some desiccant properties, infiltration of stone in the air after the absorption of water and surface water in the stone plaque, seriously affecting appearance. In addition, the use of improper adhesive material, such as some stone paste Glue Will make the stone yellow.

Environmental factors: environmental factors include pollution, acid rain, erosion and freezing and destruction. The natural environment of air pollution, acid rain and other man-made pollutants are causing pollution and erosion on the stone. In addition, freezing damage is also an environmental factor can not be ignored, because stone has a water absorption (even with the construction of stone hanging) in the cold winter, because ice and accelerate weathering process, it reduces the strength not only affects the use of life, but also a threat to personal safety. Only lesions in the stone

reasons, we are finding ways to prevent disease, stone disease treatment. On stone disease has emerged, to use cleaning, grinding and coloring approach to govern, to restore the original appearance, then do protective treatment, so as to tackling the problem. Otherwise, stone disease will increase, until a large area weathering, flaking, etc., can not be used.

I am an expert from steelrollformingmachine.com, while we provides the quality product, such as China bending roll machines , China rollformers, steel roll forming machine,and more.


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