Bitumen Cooling Properties
Bitumen Cooling Properties
(OP)
Hello All,
I am working on a conceptual design of a fibreglass roofing manufacturing automation equipment. The fibreglass is mated using Bitumen and will be cut into sheets. Prior to cutting the material I have to allow for cooling/hardening, the target is to get from 100 Celsius to between 20-40 degrees. I am trying to calculate the duration of time that this would take, in ambient temperature.
Thanks in advance.
I am working on a conceptual design of a fibreglass roofing manufacturing automation equipment. The fibreglass is mated using Bitumen and will be cut into sheets. Prior to cutting the material I have to allow for cooling/hardening, the target is to get from 100 Celsius to between 20-40 degrees. I am trying to calculate the duration of time that this would take, in ambient temperature.
Thanks in advance.





RE: Bitumen Cooling Properties
RE: Bitumen Cooling Properties
RE: Bitumen Cooling Properties
RE: Bitumen Cooling Properties
There are also available free tools which allow to derive the cooling curve of bitumen used in paving applications (http://www.eng.auburn.edu/users/timmdav/MultiCool/...)
but frankly I don’t know whether they could be applied to your specific case.
Best suggestion to me remains that of carrying out direct measurements.
RE: Bitumen Cooling Properties
It's your process - not mine! - but I don't think its going to work very well compared to a wider-area but slow and cleaner and more controlled cooling by clean air.
RE: Bitumen Cooling Properties
Regards
StoneCold
RE: Bitumen Cooling Properties
I agree that the best method would be experimental.
Some more background on this, the application is for roofing sheets and the bitumen will be mated with fiberglass for rigidity. The fiberglass rolls are past through a bitumen tank and than scrubbed to desired thickness (1/8" - 1/4"), following this it would have to be cooled prior to cutting. The rolls are 4' wide and are cut in lengths of 5 feet. The thickness is obtained utilizing scrubbers. The customer recommended to keep those wet during production to avoid material build up, can some comment on that?
The customer wants the system to produce 5 sheets per minute, this means a speed of 25 feet per minute and I an concerned about the length of the machine required to cool the material properly.
Many of the operations and material behavior characteristics came form the customer, who is using this material on a daily basis and have seen it's production. I became skeptical when they just asked to increase capacity without consideration for cooling and suggested we add water to speed up the process.
thanks again.