engineered stone is a decorative stone that is artificially compounded by using stone (stone powder) as aggregate and resin, cement or a mixture of resin and cement as a binder. engineered stone is divided into two types of products according to the adhesive: resin type engineered stone and inorganic type engineered stone.

1. Resin engineered stone

Resin engineered stone is a decorative stone made of natural stone powder sand, quartz sand and various additives mixed with unsaturated resin, vibrating, vacuum pressing and other processes, mainly including granite, quartz stone and solid surface material.

granite

Granite is made of marble powder (calcium carbonate powder) as aggregate, and its appearance imitates the texture and color of natural marble. It is mainly used to decorate walls and floors.

Quartz stone

Quartz stone, with quartz sand or quartz powder as the main raw material, these products have strong stain resistance and high hardness, and are mainly used for kitchen and table and chair countertops. Quartz stone is a high-end product with a high price and a small amount of production.

 Quartz Stone Slab from Shandong Kangjieli New Material Co.,Ltd

solid surface

Solid surface material, also known as acrylic engineered stone, the binder content of these products is different from the binder content of the two products mentioned above. The binder content of granite and quartz stone is about 6%, while the acrylic engineered stone The binder content of the stone is about 30%.

2. Inorganic engineered stone

Inorganic engineered stone is a decorative stone made of natural stone powder sand, quartz sand and various additives mixed with high-strength cement, vibration, vacuum pressing and other processes. Inorganic engineered stone has strong durability and anti-aging ability. This kind of stone is mainly used in exterior walls. At present, many high-speed railways and subways have used inorganic engineered stone in large quantities, such as China Shenzhen Metro, Beijing Universal Studios Metro Station, Beijing Daxing Airport etc.

Application of quartz sand in the field of engineered stone

1. Quartz sand applied to quartz stone

Among all kinds of engineered stone products, quartz sand is mainly used in quartz stone products. The binder content of quartz stone products is about 6%, and the content of quartz sand is more than 90%, up to 94%. From this point of view, the amount of quartz sand used in quartz stone products is very large.

2. Quartz sand applied to granite

At present, granite is mainly made of marble powder. The wear resistance and hardness of marble powder are weak. When using granite in some public areas, the luster of the surface will be worn off over time. If silicon-containing minerals such as quartz sand or quartz powder are added to the granite, it will increase the hardness and wear resistance of the granite. However, there are few technical researches on adding quartz sand to granite. Now, more glass is added to the granite, such as broken glass, broken lenses, wine bottles, etc. After crushing these glasses into transparent particles, adding Into the granite, it will make the surface of the granite more shiny and improve the appearance of the granite. Therefore, since these materials themselves contain silicon, adding them to the granite will also improve the wear resistance of the granite. Therefore, at present, it is more common to add some glass substances to the granite, and it is relatively rare to add quartz sand.

3. Quartz sand is applied to inorganic engineered stone

In terms of inorganic engineered stone, we are also promoting the addition of quartz sand to inorganic engineered stone, which can improve the performance of inorganic engineered stone. At present, the inorganic engineered stone is mainly marble, and there are many defects. In places with a large flow of people, such as the application of inorganic engineered stone in the subway, the surface wear is very serious after a long time. If a substance with a high silicon content, such as quartz sand, is added, the inorganic engineered stone will be more wear-resistant.

In general, the stone has low requirements for the use of quartz sand, especially in terms of silicon content and purity, mainly using the hardness, strength and appearance of quartz sand. It should be noted that since some stones will be applied to food-related kitchen countertops, there are certain requirements for the content of heavy metals in quartz sand. In addition, if the iron content of the stone is too high, it will turn yellow after oxidation, like some white stone, if it turns yellow locally, it will appear old and affect the appearance of the stone. However, this type of stone can also be applied. For example, when making products such as quartz stone, yellow pigments can be added to make yellow-colored stones. Stones of this type of color are currently widely used.

Construction of standard system related to quartz stone

When it comes to the standard system of quartz stone, the current standard system of quartz stone is relatively complete. Because different fields focus on different performances, some related associations, such as the National Stone Standardization Technical Committee and the Plastic Products Standardization Technical Committee, are all concerned about quartz stone. Made some specs. However, for the new engineered stone products produced by the enterprise, there is no corresponding method and index to verify. For example, the company promotes that engineered stone has the new function of anti-mildew and antibacterial. In fact, it can achieve anti-mildew and antibacterial only by adding some related minerals. Therefore, in terms of verification of the product function of the company, this part of the standard system needs to be supplemented and improved.Industry standards are gradually improving. Shandong Kangjieli New Materials Co., Ltd. participated in the formulation of the normative formulation of China's engineered quartz stone industry and contributed to the development of the industry.

National Quartz Stone Industry Standard Drafting Committee

The engineered stone market has a broad prospect.

The natural stone is limited, and the engineered stone develops. When it comes to the market status of the engineered stone, the engineered stone has a very broad prospect. At present, due to environmental protection constraints, many related mines have been closed, and natural stone as a processed product has been greatly affected. Now some larger projects, such as high-speed rail and subway, are already using engineered stone. Especially inorganic engineered stone, because it has a longer service life and is also a more industrialized product, which can have its own brand and trademark. Therefore, engineered stone, especially quartz stone and inorganic engineered stone, will be products with a very broad market in the future.

Ceramic products are worth learning from, and engineered stone has an infinite future.

Nowadays, many ceramic products are imitation stone ceramics, such as imitation marble tiles. engineered stone and imitation stone ceramics are taking a similar path, wanting to imitate and replace marble, but in contrast, engineered stone has advantages over ceramic tiles because engineered stone is a low-energy, low-cost product. engineered stone does not need sintering, which will save the cost of sintering. For example, inorganic engineered stone uses a small amount of cement and a large amount of stone powder, and can use tailings or waste from factories to make stone powder, so engineered stone is actually a kind of beneficial waste product. When the development of engineered stone is relatively mature, its imitation marble effect will be better than that of ceramics, and engineered stone can expand the market of ceramics in large quantities. When the reporter asked about the current market situation of ceramics and engineered stone? It is conservatively estimated that the market of ceramics is about 10 billion square meters per year, and it can reach more than 13 billion square meters per year at most. The current consumption of engineered stone is about 200 million square meters per year, so from 200 million to more than 100 million, it will be a very broad prospect. At present, we are also discussing green environmental protection standards and regulating the production of engineered stone. engineered stone will definitely be a green product in the future!

Conclusion

A corner of the production line of Shandong Kangjieli New Materials Co., Ltd.

As a leader in the domestic industry, Shandong Kangjieli New Materials Co., Ltd. has the obligation to promote engineered stone, and is very willing to share relevant knowledge and content about engineered stone with you. Here, I also call on everyone to pay more attention to our Chinese engineered stone and contribute to the development of Chinese engineered stone!