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Home >> News >>Coloured stone metal tile >> How to Identify the Performance and Quality of Coloured Stone Metal Tiles
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How to Identify the Performance and Quality of Coloured Stone Metal Tiles

时间:2019-08-13     作者:福盛昌瓦业【原创】   阅读

At present, the requirement of sustainable development such as cleaner production, saving resources and reducing energy consumption of colored stone tiles directly promotes the development of new building materials; accelerating the development of new building materials and promoting the modernization of residential industry by colored stone tiles have become a very important task; developing new building materials is also an inevitable choice for earthquake resistance and disaster reduction. Choose. New building materials industry is facing huge development space, which deserves attention. Coloured stone tile is the best replacement product. It is superior to ordinary clay tile in terms of windproof, rainproof, storm proof performance, service life, tile type and so on. It is widely used in cement tile industry and civil buildings, ancient gardens, villas, hotels, grain and cotton warehouses. Especially suitable for urban and rural buildings with more storms in different regions, as well as buildings with few floors. The use of color cement tile can cover various patterns, is a set of covering decoration in one of the multi-functional building materials.


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Color tile, also known as color cement tile, is sprayed on a kind of concrete tile made of cement tile, sand, cinder and other materials. Caiwa has been used abroad for more than 50 years, and it was introduced into China at the end of last century. Because of its excellent quality, good rainproof performance, heat insulation, beautiful appearance, durable, and easy to mechanize mass production and environmental protection of new building materials, it was soon widely welcomed and widely used in the country. Because of the large market and rapid development, some large-scale tile-making enterprises in Europe, America and Japan have landed in China one after another, highlighting the market with their advanced equipment and technology. At the same time, color cement tile factories have sprung up all over the country. Due to the differences of equipment, technology and raw materials, there is no relevant industry standard of color cement tile on the market at present. Therefore, the quality of color cement tile varies greatly in the market. The performance and quality of coloured stone metal tile can be easily distinguished by special instrument and equipment. Ordinary users do not have this condition, but they can also be identified directly by general methods. The following is described:

I. appearance

The appearance is regular, the edges are straight, not twisted and warped, there are no defective cracks on the front and back sides, and the claws are well angled (guaranteed to hang firmly). When making color tile in large tile factory, the mould is made of high-strength aluminium alloy, which is smooth and regular, and the tile produced is naturally flat and precise in size; while in small factory, the iron sheet is used as the mould, which is itself warped, and the tiles coming down can not be leveled and standardized. This has a direct impact on the paving effect. The cracks in the paved roof are large and irregular, and the effect of rain, wind and heat insulation is obviously poor. Measuring method: Place the tile on the plane, press it to know whether it is warped and flat, and look at the edges of both sides with your eyes to know whether it is flat or not.

2. Colouring Layer

1) Material. First judge whether the coloring layer is cement tile or paint. A good colored tile layer is composed of high strength cement and inorganic pigments, resins and silica aggregates, with a thickness of about 0.5mm. It has strong adhesion (made at the same time with tile) and good weather resistance. It will not fall off and fade after decades of sun and rain. Most of this layer of color tile factory is sprayed with paint. When the new tile is not in the room, it looks very bright. It changes color and peels off soon after it is laid. When distinguishing, first observe: the former looks at the color layer from the side and the end to have a certain thickness, the latter is very thin, and can see the spray point of paint, or there are lacquer marks at the end of the tile. Then scratch with pointed ironware: the former is hard and hard to scratch, and the latter is exposed as soon as scratched.

2) Color consistency. The coloring layer of the whole tile surface is uniform and uniform to hemp surface, without any flow marks and chromatic aberration. Secondary tile is not the case, the brighter is usually paint. If you put many tiles together, the colors of good tiles can't be different from each other.


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3. Density

It determines the strength, impermeability, frost resistance and service life of the tile. The compactness is determined by whether the tiling equipment is advanced or not and the production technology level. High density tile must be formed by high pressure rolling and extrusion of semi-dry cement material. The water cement ratio of cement is between 0.4 and 0.5 (0.4 to 0.5 kilograms of water added to one kilogram of cement) automatically matched by American patent mixing equipment (other simple ways can not mix). During production, the cement is extruded and rolled on the high strength aluminium alloy die like steel rolling in the rolling silo, and cut off automatically, thus forming high density tile blank. Because of the small internal voids, water is not easy to penetrate. The cement slurry can be mixed only when the ratio of water to cement is 0.6-0.7 in a small factory or by manual or simple mixer. In addition, the cement slurry can be mixed only when the ratio of water to cement is 0.6-0.7, and the iron mould is used. It can not withstand the great pressure and can only be applied at once, thus the compactness is greatly reduced, the internal voids are large and many, so the impermeability is very poor. In cloudy days, rainwater will drip down the back of the tile and then into the roof. According to information, when the water cement ratio of cement is increased from 0.4 to 0.7, the impermeability of cement decreases by 100 times! At the bottom of compactness, not only impermeability is poor, but also strength decreases. The bending strength of good tile can reach more than 300 kg, and the difference tile is less than 100 kg. The impermeability is poor, so it will not be frozen in winter. Especially in the north, snowwater seeps into the tiles during the day, freezes and expands at night, and gradually flakes and destroys the tiles, so the service life of the tiles will not be long.

Identifying method: Listen to the sound: lift the cement tile with one hand, and strike the tile with the other hand. If the sound is clear and crisp, the compactness is better; if the sound is stuffy, the compactness is poor. Look at stubble: Break the tile, if the cross-section is compact and delicate, the compactness is good; if the cross-section is rough and loose, the compactness is poor.

4. impermeability

Irrigation method: Put the tile back and add water in the groove to observe. If the water line is straight and neat, it means that the density is good and the material is uniform. If the water line is serrated and uneven, it means that the material is uneven and the impermeability is poor. Look at the rise and fall of the water line and the speed. It usually stops when it rises to about 5 mm and stops rising for several hours. The difference tile can rise to its highest point in a few minutes, or even the whole tile will be wet.

See how quickly the water seeps: after three days, the good tiles evaporate a considerable part of it, and the water is still there; after a few hours, the poor tiles no longer exist, and they all seep into the tiles. Therefore, the speed of cement infiltration tile can show the density of tile, but also can see the anti-seepage ability of tile. Finally, look at the back of the tile: if after 24 hours, there are water droplets on the back of the tile, the anti-leakage ability of the tile is poor, even in cloudy days, the roof will leak; the back of the good tile is not wet, or wet without water droplets. The strength, rainproof and durability of impermeable tile are poor.

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