Many owners are ignorant about the maintenance of stone. In the recent practice of stone conservation, some new problems have emerged, and some new ideas have been formed. Wan Bian Xiaobian summarizes the following five points:
First, not all natural stone needs protection
If it is only waterproof and anti-alkali, some high-hardness, high-density stone in the ten-hanging construction can not be protected. This also applies to some coarse-grained granite. For example, in the igneous rock, the coarse-grained magmatic rock obtained by slow cooling has a large amount of quartz. This low-density quartz surface water and other pollutants are infiltrated. The theory was confirmed and recognized by Maurizio, a conservation expert at the International Stone Association of the United States. Which materials need to be protected? Which stones do not need to be tested is dripping water under the polished surface of marble or dripping vinegar on the polished surface of granite. If the residue of anhydrous or vinegar remains after 5 minutes, the marble or granite of this variety may not be Do protection.
Second, the stone protection should be suitable for the construction of materials, construction of materials
In the engineering practice, it will be found that the protective agent has poor protection effect on some varieties of stone. Excluding improper construction and production failure, the most likely reason is that the correct stone chemicals are not used for protection. For example, granite and marble have different formulas for their mineral composition and chemical composition. Even the same type of stone will increase or decrease the concentration of silicone resin due to differences in density and chemical composition. For example, the concentration of silicone resin in sandstone protectants will be higher, and the concentration of silicone resin in granite or marble protectants with higher hardness and density will be lower. Therefore, in the construction of stone conservation, it must be adapted to the material, and it must be constructed according to the material. Different chemicals and different construction techniques are selected for different stone materials. This further illustrates the need to establish a stone conservation database. It is like compiling a dictionary or encyclopedia of stone conservation. By checking the selection of the correct chemicals and construction methods before the maintenance and construction, and taking the medicine according to the prescription, not only the effect can be significant, but also the annual production cost can be saved.
Third, do not blindly believe in imported stone conservation products and do not prejudice domestically produced products. At present, the maintenance products of foreign brands are generally considered to be a symbol of high quality. However, its high price affects the promotion of foreign brands. The maintenance products of domestic brands are generally not optimistic, but they also have a certain market share because of their low prices.
In fact, these prejudices stem from the lack of understanding of stone conservation knowledge. All protective agents, whether imported or domestically produced, are composed of active ingredients plus diluents and auxiliaries. There is no difference between this entry and domestic production. In recent years, the development and application of domestic stone/protective agent products has developed rapidly, and it has been close to foreign advanced water in the field of silicone monomer manufacturing and resin synthesis. It is equivalent to foreign countries in the compounding process. In the field of construction applications, it is ahead of foreign countries.
Engineering practice cases show that if improper selection of foreign protective products can cause maintenance failure, it will cause losses to the owners. For example, there are three foreign brands of protective agents that appear darker when applied to high-density, high-hardness granite. If applied to a glossy surface, there will be significant surface residue. This problem does not occur if a relatively high-priced, highly permeable organosilicone protective agent is used. The reason for the surface residue, white spots or darkening of the color is mostly due to improper selection of protective agents.
Therefore, Guangzhou decoration reminds the majority of owners: The correct point is that stone protectants should not be "imported or produced, high or low prices" as a criterion for judging quality.
Fourth, the natural stone floor paving does not need to use smooth surface stone with the roughening of the rough surface, and then the artificial stone conservation
Now the floor paving is to choose the smooth paving of the smooth stone, and then to find the flat and renovate, which is equivalent to repeating the polishing process, and the cost is higher. The correct way is to choose the smooth surface of the stone, then buy the matte specification board, and then paving, leveling, refurbishing and curing. This can greatly reduce costs. This method has long been used in engineering practice in foreign countries, and has not yet formed an application in China, mainly because of the disconnection between stone consumers and construction companies, which is inconsistent in concept. The high cost is entirely borne by the consumer.
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