Shocked! Marble Radiation Is Even Smaller Than Wood!

Take a look at these large slabs of stone: the mainstream of the market price of stone is generally in the $10.00 to $15.00 per square feet. The final material rate and processing costs is about $20.00, same as the consumer’s who pay for the final price of one square foot of the slab.
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However, the same large slab, varies because of the unique quality and pattern, which makes them very rare. Many people treat this stone as a beautiful painting due to its translucent backlighting behind their couch. With the price being sold to more than $3000!
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When it comes to buying marble, some people say that for home decoration, safety comes first. Those that have radiation, aren’t being purchased. Many people say that natural marble has radiation and the radiation intensity is not small. Is this true?
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We prepared five samples of domestic and imported marble, domestic and imported tiles, respectively, to test the radiation, abrasion resistance and water absorption of consumers.

 

Radioactive

The inspector first tests the radioactivity of the submitted stone. The inspector crushes a sample of homemade marble, called the Oriental Rose, into a lead chamber for inspection. After six hours, the result came out!

 

Inspector: Measures the harm of radiation to the human body, mainly including internal radiation

formed by radiation inhalation into the human body, and external radiation. According to the industry standard of national standard 6566-2010 for building materials, we now require that the internal radiation index of the Class A radioactive index is 1, and the external radiation index is 1.3. The test we made this time was a homemade marble named Oriental Rose. The result of this test was 0.02 for internal exposure and 0.11 for external exposure, which met the standard requirements.

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According to the same test method, the results of the inspection of imported marbles were 0.07 for internal exposure and 0.04 for external exposure.

 

Look at the inspection of tiles -

Inspector: The inspection results of imported tiles for internal exposure index 0.59 and external exposure index 1.18. The inspection results of domestic ceramic tiles submitted for internal exposure index 0.32 and external exposure index 0.54.

 

Whether it is the inspection of domestic tiles or the inspection of imported tiles, the radioactivity exceeds the natural marble samples submitted. However, the radioactivity of the inspection tiles is within safe limits.

 

Inspectors: All are in line with the national Class A radioactive index and belong to construction materials that do not limit their use.

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Water Absorption

The test results showed that the average water absorption rate of ceramic tiles submitted to China was 5.7%, that of imported ceramic tiles was 5%, the average water absorption rate of imported marbles submitted to the inspection was 0.36%, and that of domestic marble submitted was 0.25%.

In other words, in the waterproof performance, the imported tiles submitted for inspection are better than the domestic tiles, and the domestic marble submitted for inspection is more waterproof than the imported marble.

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Wear/Abrasion Resistance

 

Whether it is tile or marble, abrasion resistance is an important indicator for long-term use.

After inspection, the average value of the abrasion resistance of the imported marble submitted is 21 centimeters per centimeter, and the average value of the domestic marble submitted is 29 centimeters per centimeter. The domestic marble submitted for inspection has a lower abrasion resistance than imported marble.

The average value of the abrasion resistance of the imported tiles submitted for inspection is 98 cubic millimeters, and the ceramic tiles submitted for inspection are 131 cubic millimeters. The ceramic tiles submitted for inspection have a lower degree of abrasion than the imported tiles.

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