Due to the extreme weather conditions in the summer, the temperature is too high, too dry or too much rain, too humid. Therefore, it has not always been considered a good season for home improvement. In fact, as long as you pay attention to some important matters in summer construction, you can avoid quality problems. Here, the author of the life has specially collected the decoration information suitable for summer construction, and hopes to help you to install a satisfactory home in this summer! First, the cleaning and renovation of stone The diseases of stone can be basically divided into two categories: one is that the micropores of the stone are occupied by foreign bodies, and the microstructure of the stone itself has not been obviously damaged, such as most rust yellow spots, organic spots, salt spots and white hua, water traces. And water spots, oil spots and oil stains, etc. For these conditions, professional cleaning is the preferred method. The other type is that the stone microstructure has been damaged to a certain extent, such as surface loss, pulverization, shell flaking, holes, cracks, and the like. For the second type of illness, a retreading method is generally used. Professional cleaning. This is a method for cleaning different causes and different objects of stone disease. We have repeatedly discussed the cleaning technology of stone or stone artifacts. Here we mainly focus on the cleaning of the smudges of the stone micropores of the decorative stone. We call it the “deep cleaning†of the stone. Generally speaking, the deep cleaning of stone should include at least the following three steps: the cleaning agent enters the micropores of the stone through the infiltration process; the cleaning agent physically or chemically acts with the dirt molecules in the micropores of the stone; the steps are removed by suction or dilution. The residue after washing. The first and third steps here are the basic operations necessary to complete the deep cleaning, and the cleaning agent that acts on the dirt molecules in the second step needs to be carefully designed and tested according to the nature of the dirt, the material of the stone and the convenience of the process. . Here the chemical method has a unique effect. At present, we have cleaning agents for cleaning rust yellow spots, organic spots, salt spots and white leaves, some water marks and water spots, etc., and continue to improve and develop new cleaning agents. In addition to common chemical cleaning methods, we are experimenting with safer physical cleaning methods such as steam flow, particle flow, electrochemistry, ultrasonic or laser cleaning. The following problems should be noted in the deep cleaning of stone: It should be tested first. The "diseases" of stone vary widely, for example, there are many types of deliquescent salts that form water spots. Therefore, we do not know the specific causes of smudges, we advocate small trials first. Choose a cleaning agent carefully. Inferior cleaning agents are often some strong acids, they are likely to cause more serious stone diseases, such as surface loss and chalking, water spots and saline spots, loose dissolution and yellowing. Therefore, it is recommended that users should first select high-quality products from reliable manufacturers. Secondly, they should protect the parts that are not ready for cleaning before cleaning. After cleaning, the residual chemicals should be removed. In addition, the cleaning of stone cultural relics should be done by relevant experts. Argument. Refurbished. This is a method of treating surface or surface microstructural damage caused by stone disease. Grinding, sandblasting and coating are the most basic refurbishment operations. The easiest way to refurbish it is to polish it or apply a layer of masking material. Grinding and polishing can restore the original natural appearance of the polished surface of the stone with surface loss, surface flaking and surface erosion. Some new combinations of abrasives, abrasives and chemical additives can achieve a mirror finish with a refurbishment of more than 90 Gauss. At present, the domestic ground refurbishment grinding and polishing technology is relatively mature, and there is still a certain technical difficulty in the construction of the wall surface. Sandblasting, also known as particle spraying, can restore the original natural appearance of the rough and irregular surface stone, such as the wool board, fire board and sculpture. The flow pressure of modern particles or micro-particles is about 105~106Pa. The well-designed portable jetting machine can automatically recover and separate working particles and absorb the dust. The particle materials are: quartz powder, natural fine sand, corundum powder, calcite powder, glass microbeads, blast furnace slag particles, plastic particles, etc. These particles can be divided into general particles (0.1~0.5m) and fine particles (0.05~ according to the diameter). 0.1mm), depending on the situation. Foreign sandblasting refurbishment methods have become more common, but similar high-quality particle jet machinery products have not been seen in China. The purpose of the coating is to mask the shadows, and the coating is almost as good as it can be. For example, the use of imitation stone paint on the external wall, we have used the waste of sawing stone to make a coating of imitation fire board and wool board: for indoor ground, for example, some of the more serious erosion, holes, cracks or loose stone, etc. The pores and cracks can be filled with resin and filler, and then reinforced with stone reinforcing agent, and then polished. The stone reinforcements we produce are often used in the renovation of stone. In addition, some bright resin is also often used for indoor stone surface glazing or lightening treatment, which can improve the stone grade. For some stains that are difficult to remove by washing, such as organic stains, salt spots and white hua, water marks and water spots, grinding and sandblasting methods are also effective, but the cost is higher. Second, cleaning and refurbishment protection After the cleaning and refurbishing treatment, since the microporosity of the stone has been opened, the specific surface area is increased, so that the adsorption capacity for dust and dirt is increased, and it is easy to be contaminated again if it is not treated in time. We have already discussed a lot of stone surface protection agents. Only a few points should be mentioned here to have better protection, that is, to alleviate or block the erosion, damage and fouling of the surrounding environment, such as acid rain resistance, pollution resistance and resistance. Alkali washing, water repellency and oil repellency; protective agent and stone should have good compatibility, that is, the protective agent itself and its action process can not have a negative effect on the stone, such as yellowing, generating expansion pressure, hindering stone breathing, etc.; The protective agent should have good weather resistance and recoatability, because the normal effective life of stone is much longer than the life of ordinary organic protective agent. The better the weather resistance of the protective agent, the less the number of recoating, the better the recoating. The less negative impact on the stone after failure. In general, the use of osmotic silicone protective agents with respiratory function is better. For example, Zhejiang University's silicone stone protective emulsion and protective brightening agent have better protection effect, and the double layer protection effect is better. [Follow the WeChat public number " Jiuzheng Stone Network "; pay attention to courtesy, scan code to send millions of business opportunities! 】
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How should the decorative stone tiles be maintained and refurbished?