Black Limestone Slabs

Experience the timeless beauty of our Black Limestone Slabs. Crafted from natural stone, these slabs add a touch of luxury and sophistication to any space. With their durability and unique black color, they are perfect for both indoor and outdoor use. Elevate your design with these stunning slabs.

There are more and more indoor pollution cases caused by careless decoration, especially the many claims about "black limestone slabs has terrible radioactivity" that make many people afraid. Gu Yongzhen, a professor and geological expert at Chengdu University of Technology who has been working in radiology for nearly 30 years, said in an interview with reporters yesterday that natural black limestone slabs is too wrong and should be rehabilitated.

Professor Gu said that the claim that natural marble has higher radioactivity is actually a misunderstanding, and people are more likely to do so because they don’t know much about its radioactivity. Gu Yongzhen told reporters that black limestone slabs is actually marble, which is made of black limestone slabs in sedimentary rock that has undergone high temperature and high pressure and other external factors. It is mainly composed of calcite and dolomite particles. The actual test results for many years show that the radioactivity of calcite and dolomite is generally very low, and the radioactivity of marble metamorphic fromblack limestone slabs with very low radioactivity is also very low, so it can be used with confidence.

"The high radioactivity should be part of the artificial marble!" Professor Gu Yongzhen said. According to Professor Gu, artificial marble is made of natural marble and sometimes crushed granite as fillers, cement, gypsum and unsaturated polyester resin as adhesives, which are formed by stirring, forming, grinding and polishing. This kind of black limestone slabs is rich in harmful gases. The radioactivity level of artificial marble depends on the amount of granite filler and its own radioactivity and the radioactivity of cement gypsum, while the harmful gas mainly depends on the amount of volatile substances such as formaldehyde and benzene contained in the adhesive. Gu Yongzhen also emphasized that gray granite is generally not a big problem, while red is generally more self-sustaining. Artificial marble should be added to cement, and a certain amount of ash should be added after the cement is fired, while the ash of some low-quality coals will be higher. Radioactivity. At the same time, there is gypsum in artificial marble. If it is not handled well, it will have higher radioactivity.