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UER Forum > Archived Rookie Forum > Asbocement drains (Viewed 535 times) EXElent   |  Asbocement drains < on 1/14/2007 12:51 PM >   I've been reading about drains in my city and even if it doesn't seem there are big draining systems like in other bigger european/other cities there seem to be at least some portions that are explorable. Anyway my question was regarding the material the drains are manufactured from: some are manufactured from asbocement wich I assume is cement mixed with asbest.... is this material as dangerous as asbest and should the same precautions be taken when exploring a drain? Do shocks (running in the drain, dropping something, etc.) expel microfibres of asbest from the asbocement? Any and all informations on this construction material are appreciated. On avance toujours... aaronni  Location: South Puget Sound  |  Re: Asbocement drains <Reply # 1 on 1/14/2007 8:23 PM >   You're correct about it being asbestos bearing cement EXElent, in fact it's the same material as the Eternit paneling seen on many older houses in Europe. The Asbocement contains between 5-10% asbestos which adds fire proofing and strength since most Asbocement is panelling and cement alone would be too fragile. It is a tough question though since the dust which causes health problems can be present in extremely low levels you could be kicking up a small cloud around you and not see it. Better to filter up than risk it. never know until you go EXElent   |  Re: Asbocement drains <Reply # 2 on 1/14/2007 9:39 PM >   in fact it's the same material as the Eternit paneling seen on many older houses in Europe. That is in fact a very interesting piece of information for me. My grandparents have this type of roof on their animal shelters. But I've searched abit about this material and it seems it has been banned in Europe. It's a matter of time until this material will be gone from Romania as well according to an article. Things are put in motion by Romania's recent (1 January 2007) adhesion to the EU. Actually the deadline for public institutions to remove Eternit panels was 31 december 2006 (there weren't many anyway on such institutions). For private buildings, in Romania, the deadline is 2012 so I'm sure this process has started already some years ago in other older EU countries. I don't think you will find this material in Europe so much anymore. Another interesting thing about this information is that this material is banned so if it's similar to asbocement that means that material is dangerous as well. I guess they'll probably take their time removing the asbocement from drains as it's isolated and nobody should have access to it... to costly to start reconstructing 20-30% of the draining system of a city. So I'll go with the filter as you suggested. On avance toujours... kjohnnytarr  Location: Columbia, Missouri Gender: Male Team Asbestos: CoMO  |  |  Re: Asbocement drains <Reply # 3 on 1/14/2007 10:37 PM >   This is interesting. Can we have it moved to the Drainer's Forum? It seemed like a good idea at the time... Glass  Location: Chicago as one does  |  |  Re: Asbocement drains <Reply # 4 on 2/3/2007 8:56 PM >   Asbestos is harmless when moist. aaronni  Location: South Puget Sound  |  Re: Asbocement drains <Reply # 5 on 2/5/2007 5:43 PM >   The only problem with that is 100% of the drain's surface is never saturated enough to keep any stray asbocement dust from getting kicked up. I still think it's safer to use a filter. never know until you go Glass  Location: Chicago as one does  |  |  Re: Asbocement drains <Reply # 6 on 2/5/2007 10:41 PM >   Posted by AaronNi The only problem with that is 100% of the drain's surface is never saturated enough to keep any stray asbocement dust from getting kicked up. I still think it's safer to use a filter. If the drain ever fills (and most drains do regularly) that would wash out all the loose particles. Draining with a filter is kinda silly... valix22  Location: Romania, different corner each day Gender: Male  |  |  Re: Asbocement drains <Reply # 7 on 3/7/2007 10:22 AM >   I'm going to go a bit in depth in my explanation since I see there's a bit of confusion with the asbocement. Firstly, asbestos itself is not a fire retardant but a heat retardant. The point of adding asbestos powder to any precast cement/concrete is that it doesn't allow the panel/pipe (or whatever else you're casting) to crack if exposed to sudden temperature variation (the plating is usually used for roofing so it can be wormed by the sun, the pipes can get sudden bursts of warm water). Secondly, asbocement is starting to get less and less used partly because it breaks easily so roofs have to be replaced after hailstorms, partly because the huge plants manufacturing it have been shut down for ages ('92-'93). In Romania, and the neighbouring countries this material was used because Romania used to manufacture about 40% of the asbocement of all continental Europe. The three main plants in Medgidia, Fieni and Bicaz are now out of work, and only produce cement and lime. Thinking that people here would remove the asbocement because 'the European Union said so' is a joke, never happened and never will. Lastly and most importantly drain tunnels are not built of anything containing asbestos. The reason is quite simple actually: adding asbestos, even in small quantity to cement drastically reduces it's load bearing capacity. Smaller pipes (up to 10 inches in diameter) don't suffer much from this, but a 10 foot diameter tunnel would collapse under the huge load of the ground above. That's why any tunnel is built either from brick masonry (older method) or reinforced concrete (newer but more expensive). The only potential danger is that asbestos particles are washed from the smaller pipes into the larger tunnels which would then dry up at some point and the particles would get kicked into the air, but that is a very remote possibility. E=MC square Romania=UE heaven. Both as obvious, both as true. EXElent   |  Re: Asbocement drains <Reply # 8 on 3/12/2007 8:16 PM >   Thinking that people here would remove the asbocement because 'the European Union said so' is a joke, never happened and never will. With the risk of deviating from the subject I must say that I think it's not such a joke. At least in other aspects of constructions and urban planning some measures have been taken according to what the EU "said". For example allot of garages that where built on public space have been thorn down since January so I'm pretty sure it has something to do with it. As for the rest of the information - golden as always!;) On avance toujours... UER Forum > Archived Rookie Forum > Asbocement drains (Viewed 535 times) All content and images copyright © 2002-2024 UER.CA and respective creators. Graphical Design by Crossfire. 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