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535 views
06:38 Sep-08-2005
Ian Thompson
Pipe Wet Mortar Lining Thickness Measurement

We are developing a Remote Lining Machine to apply cement mortar to the inside of a steel water pipeline, and seek a sensor to provide (wet) lining thickness feedback, in real time. Our pipes have been pre-cleaned using a recently developed water blasting system, back to the steel. Typically our pipes are 760 mm diameter (could be 600 mm, or >1m), with a 6.5 mm nominal wall thickness, but with considerable corrosion variation and pitting. Our machines use a mortar-supplied spinner head at the rear to apply and build up the wet lining, then trowel downstream for a smooth finish as the machine is withdrawn from the pipe. Typical target lining thickness is 15 mm, which we seek to hold to 1 mm or so. Co-ordinated access to the outside of the pipe would prove difficult. S.G of mortar approximately 2.5.

Hope the experts can suggest options, or recommend alternatives!



 
06:32 Sep-08-2005

Jim Kovarik

Engineering
Lixi, Inc.,
USA,
Joined Nov 1998
39
Re: Pipe Wet Mortar Lining Thickness Measurement ----------- Start Original Message -----------
: We are developing a Remote Lining Machine to apply cement mortar to the inside of a steel water pipeline, and seek a sensor to provide (wet) lining thickness feedback, in real time. Our pipes have been pre-cleaned using a recently developed water blasting system, back to the steel. Typically our pipes are 760 mm diameter (could be 600 mm, or >1m), with a 6.5 mm nominal wall thickness, but with considerable corrosion variation and pitting. Our machines use a mortar-supplied spinner head at the rear to apply and build up the wet lining, then trowel downstream for a smooth finish as the machine is withdrawn from the pipe. Typical target lining thickness is 15 mm, which we seek to hold to 1 mm or so. Co-ordinated access to the outside of the pipe would prove difficult. S.G of mortar approximately 2.5.
: Hope the experts can suggest options, or recommend alternatives!
------------ End Original Message ------------

We may have an option for you, but you mentioned that access to the OD would prove difficult. Please contact me to discuss in more detail.

Thanks,
Jim Kovarik


 


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