no, it does not
UNITED asbestos CEMENT.. THE COMPANY FOUNDED IN EARLY 60'S.. AFTER 1980 THE COMPANY START TO PRODUCE ASBESTOS FREE CEMENT BOARDS.
Some older soffit boards are constructed from asbestos cement sheets, many types of insulation, if you have an older home with cloth wiring the cloth can contain asbestos as well.
Asbestos cement
The difference between corrugated asbestos roofing and flat asbestos cement sheet is the form in which it was cast and, perhaps, the thickness of the finished product. Asbestos was merely an additive to cement. Both products are basically cement with a fiber strengthener that happens to be asbestos.
Older cement board may contain asbestos, and then it is properly called "asbestos cement board." Cement board more recently manufactured should not contain asbestos. The only way to know whether a particular cement board does or does not contain asbestos is to ask the manufacturer (if you know who made it) or have a sample collected from it by a qualified sampling technician and have the sample analyzed by a qualified laboratory.
Asbestos is a good insulator Asbestos-cement sheets 0.166 W/m.K and that of steel is 43 W/m.K Asbestos cement stands up well to weathering.
Under normal circumstances we would not find asbestos in Portland cement. Asbestos has a number of applications (even though it is hazardous), but none of them involve it being mixed with cement. The presence of asbestos in cement would weaken the final product (concrete, grout, mortar, stucco, or whatever), so there is no reason to deliberately include it in the cement.
There is no easy way to repair asbestos-cement pipe. If damaged, it should be removed and replaced.
Stanley Garil has written: 'Summary of trade and tariff information' -- subject(s): Statistics, Asbestos industry, Tariff on cement, Cement industries, Cement clinkers, Cement, Asbestos
Asbestos-cement wallboard looks like any other cement board product. Only analysis by a qualified lab can tell the difference.
Asbestos-cement wallboard looks like any other cement board product. Only analysis by a qualified lab can tell the difference.
The only way to know for certain if cement siding contains asbestos is to have a small sample tested by a qualified laboratory.