Stone material is analysed, and the lithology and physical characteristics of itself
Nursing object is all kinds of stone, every stone has its own characteristics of rock ore, chemical and physical characteristics. Rock properties the stone material of three types of igneous, sedimentary, and metamorphic rocks. With chemical composition characteristics is divided into carbonate and silicate class two large categories.
Silicate rocks such as granite, diabase, gabbro, syenite, hornfels, carbonate rock, such as marble, limestone, travertine, etc. Understand stone rock properties can grasp the mineral composition and chemical composition of the rock, so as to determine the class stone chemical weathering resistance and prone to illness. Can master the structure and physical properties of the rock, to determine the physical weathering resistance of stone, stone material so as to guide the correct application.
Analysis of the phenomenon and the formation mechanism of various kinds of diseases
Chemical pollution is mainly embodied in the modern stone used for the water spots, rusty spot, whiskering, discoloration, organic matter pollution and so on.
The reasons of water pollution is very complicated, generally think of stone material bibulous rate is higher, stone protection not ready.
The emergence of rusty spot actual is the outcome of rock element of iron oxidation. Rocks of iron is generally exists in the ferrous iron. But bivalent iron is unstable, react with the oxygen in the air, into ferric iron, formation of ferric oxide.
Stone color mainly appeared on the chemical stability of stone varieties, during the installation process is a stone wall from top to bottom gradually become yellow, over time, the whole metope completely turn yellow. Travertine itself poor chemical stability, carbon dioxide, sulphur dioxide, nitrogen oxides in air will react with lime central China of calcium oxide, especially generated sulfide is necessarily white stone yellowing. Again, in the construction process of coating and adhesive contain large amounts of volatile, these volatile components also can react with stone material, the chemical stability of this kind of stone.
Whiskering phenomenon in stone material adopts wet stick can often be found after installation. More alkaline material sources from caking material, using dry hanging construction process won't appear whiskering, likewise, dry hanging technology also won't appear water spots.
The stone material of several common disease prevention and treatment
1, rusty spot
Is the key to prevent rust stain on the surface of stone processing to be effective after processing, in order to prevent the seepage surface after containing iron oxide content, general use oily protective agent.
Processing rusty spot mainly herbicides, but due to the rust remover belongs to acidic, so don't acid stone such as marble, dolomite, should be tested before use, if necessary, add water dilute.
2, water spots and wet
Prevent water pollution is mainly into the resin to make stone material waterproof, to cut off the water in the air contact with stone or cement internal material, reduce the chemical reaction conditions.
Dealing with water pollution is mainly penetrating stain is used to change the color of the original stone material, "wet marks don't do it" is a big problem in international stone conservation.
3, hua phenomenon, commonly known as tears
Phenomenon of hua prevention is mainly in the stone processing after infiltration protective agent to six stone material surface protective treatment.
Deal with hua phenomenon mainly stone material surface has been cleaned, wash with water, to the neutral, air-dried again after curing processing of stone material surface and seams.
High oxygen should be used to rust agent and detergent, gentle formula, remove rust stains, tea stains on the stone material, straw rope stains, macular stains and metal oxide, must not hurt stone.
Hotel luxury hotel over a period of time after use, subdued, stone will have stone. Hotel high-end restaurant business is busy, not allowed to occupy too much time on stone care, so you can use the dolby (2000 #, 3000 # and hard brightening agent to deal with. Dolby (2000 #, 3000 # and hard brightening agent daub after hard surface formation, thus increases the levels of the hardness of stone. At the same time increase the gloss of stone material, about 1 hour to pedestrians, dry after 24 hours can be driving. The effect is much better after secondary daub, but don't apply it too thick for the first time. Large area after the completion of the wipe clean with clear water after dry appear bright as crystal effect.
If the damage is serious, stone surface gloss disappear phenomenon. If you encounter such a situation, you may need to use dolby shi polishing powder + f66 true light agent in polishing. Polishing powder contains antioxidants such as alumina or tiny particles of tin oxide, its main composition containing surface oxidation active matter does not contain acid. Manual polishing is suitable for small area of the hotel building toilet, kitchen surfaces, and polishing machine is used for large area matte surface area.
The specific practices are as follows:
1, to ensure that the surface is dry, not been protective agent protective, if necessary can use first neutral detergent to clean the surface, make the stone material surface clean and dry, to prepare for the next step of polishing.
2, medication spoon will polish liquid to stone material surface, then sprinkle with an equal amount of polishing powder, in per square foot (0.093 meters), each with a half spoon of stone material surface polishing powder and liquid of polishing agent.
3, 100-140 pounds of ground grinding machine or manual grinding machine (1500-2500 revolutions per minute) with white nylon, wool mat for grinding, polishing on the ground of the need to deal with. Each grinding 6-8 square feet (0.56-0.74 square meters), until its brightness. Generally a jar (0.5 kg) can be polished 200 square.
