The word asbestos is a commercial term to indicate any fibrous mineral with a fibrous form. In fact, there are many types of asbestos fibres which are divided into two families based on their differences in physical/chemical properties: the serpentine(white asbestos fibre) and the amphiboles (blue and brown asbestos fibre)

Amosite, crocidolite, tremolite, actinolite, and anthophyllite are all amphibole type of asbestos fibre, which is straight and needle-like and has a long half-life. Once in the human lung, amphibole fibre could cause tumors and inflammation symptoms. After 10 to 20 years of incubation, the tumor will develop into cancer and other lung related diseases.

The serpentine fibre group, including chrysotile asbestos (or white asbestos), is curly and soft, which makes it the only approved type of asbestos to be commercialized today – most commonly for industrial purposes. The group is put under the list of low biopersistent chemicals, much lower than glass wool fibre. According to scientific researches, after entering human body via inhalation, chrysotile fibre will be disposed from the lung in 0,3 to 11 days or decomposed by the acid environment created by the macrophage.

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No case of cancer has been found due to drinking water from AC roof sheets

No case of cancer has been found due to drinking water from AC roof sheets

(Lai Chau Newspaper) AC roof sheets have been produced in Vietnam since 1963 with the main blending components including 7-10 percent of chrysotile fiber, 90 percent of cement and other additives. With superior properties such as high elasticity and strength, good friction resistance, resistance to...
The story of AC roof sheet industry after 60-year existence with people

The story of AC roof sheet industry after 60-year existence with people

(Thai Binh Newspaper) Around the year of 1963, AC roof sheets (also called chrysotile-cement sheets) were manufactured in our country. With suporior characteristics such as good quality, high durability, resistance to typical hot and humid climate and large temperature difference, especially in coastal areas and...
Widely used PVC plastic chemical spurs obesity, prediabetes: Study

Widely used PVC plastic chemical spurs obesity, prediabetes: Study

[Environmental Health News] Mice exposed in the womb to a chemical used in PVC plastic, door and window frames, blinds, water pipes, and medical devices were more likely to suffer from prediabetes and obesity, according to a study released this week.
Why chrysotile - cement products should be used

Why chrysotile - cement products should be used

Compared to products coming from the petrochemical or metallurgical industries, chrysotile - cement products consume much less energy; in fact, the largest proportion of energy consumption goes into the production of cement.

Can chrysotile cause exposion?

Mr. Nguyen Manh Hung, Vice President and General Secretary of Vietnam Standard and Consumers Association, stated on VOV Online Discussion aired from 14:00 to 16:00 on April 25th 2015 that: "Chrysotile caused an explosion in Hanoi".

Which countries are currently allowing the use chrysotile in production?

At present, there are 57 countries worldwide prohibit the use of asbestos while 147 countries and territories allow the use of chrysotile and products containing chrysotile. Those countries are G8 countries: the United States of America, Canada, Russia, and Mexico, Brazil, Ukraine, Kazakhstan, Kyrgyzstan, Uzbekistan, China, India, Thailand, Indonesia, Vietnam, etc.