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Posted By Brian Edward Harkin
I am looking for info on the weight of corrugated asbestos cement sheet for the purpose of estimating tonnage prior to removal.
Many Thanks
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Posted By DTadman
Hi Brian,
I would talk to an approved asbestos removal firm. They are more than likely to have details on this as they remove it all the time and send it to licensed sites etc.
D
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Posted By NickW
Well asbestos cement can vary in weight but by definition it will be at least 1000 kg/m3 under the Asbestos Licensing Regs or else it would be classed as board.
In my experience from the laboratory side, it varies between 1400 and 1600 kg/m3 depending on type.
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Posted By James K
I have to agree with D here. I recently had to estinate the weight of a loaded asbestos roof and when I rang the supplier he was able to give me the total tonnage within a few kgs. Taking into account that the roof was erected in 1982, this was an excellent example of good record keeping which is often not a top priority with some companies.
Talk to the supplier of the sheeting or even talk to any supplier and give them the profile and size of the sheet. They should be able to assist.
Jim
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Posted By Stuart Nagle
Nick.
I assume that your calculations are based on the material being stacked, in an interlocking manner with absolutely no voids at all - ie very dense.
In most circumstances this is very unlikely to happen and there will be voids, through breakages, holes, materials not being packaged tightly togeather ect.
besides this, the size of sheets is not 1.0m X 1.0m - they come in various lengths and widths and weight may vary due to porosity, density, age and weathering, wet or dry and a number of other variables.
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Posted By Steve99Jones
Stuart
I think that you will find Nick is making reference to the unit weight of the material itself, not the weight of a stack of corrugated sheets which fill a void 1m x 1m x 1m.
As Nick has stated, the CAWR/Asbestos Licencing Regs define Asbestos Cement as having a density in excess of of 1000kg/m3.
AIB is classed as having a density of less than 1000kg/m3 and is a licenced product, (even though many people mistake AIB products such as Soffit boards for AC)whereas AC does not require a licence to work with due to the tightly bound nature of the product and the low potential for fibre release.
Steve
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