Marble is an alkaline medium-hard stone with dense texture, high compressive strength, low water absorption and soft texture. Used in hotels, exhibition halls, theaters, shopping malls, libraries, airports, stations, office buildings, residential buildings and other projects such as indoor walls, cylinders, service desks, fences, elevator doors and other parts. Because the texture is soft, not wear-resistant, not suitable for the ground.
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When purchasing marble, consumers should be careful to use red-brown series granite and marble. If used, it is best not to spread more than 40 square meters. Try not to buy "mobile booth" marble, because many of them are dyed, and the hygiene and safety of paint are problematic. There are three methods for site selection: eye observation, ear hearing and ink drop.
Eye view: the stone with uniform and fine texture is the best stone; The appearance effect of coarse-grained and unequal-grained stones is poor.
Listen: the sound of good quality stones is crisp and pleasant; If there is a slight crack in the stone or the contact between particles becomes loose due to weathering, the knocking sound will be rough.
Drop ink: drop a small drop of ink on the back of the stone. If the ink is quickly dispersed and leached everywhere, it means that the particles in the stone are loose or have gaps, and the quality of the stone is not good; If the ink drops are in place, it means that the stone material is of good quality.
Consumers have the right to ask the manufacturer to produce the inspection report when buying stone, and should pay attention to the date of the inspection report. The radioactivity of the same variety of stone varies greatly due to the occurrence, seam and origin. Therefore, when selecting or using stone materials, we should not only look at one inspection report, especially when it is used in a large number of projects, we should carry out multiple inspections in batches or stages.
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