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Polymer
Concrete Pipes
The Need
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Materials are needed for piping applications
that have high strength and are resistant to corrosive chemicals. |
The Technology
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Polymer concrete pipes are one solution to
this problem. These pipes are made by mixing a high strength, thermosetting resin with
oven-dried aggregate to form a type of concrete. The resin within the mix provides for
bonding the aggregate much like Portland Cement does in traditional concrete pipes.
The pipe sections are cast vertically with an inner and outer form and are vibrated for
compaction. After the forms are removed, the section is heated in a kiln to finish curing
the resin. These pipes can typically be used to carry highly aggressive wastes, for pipe
jacking as they have very high compressive strengths (up to 17,000 psi), or for
microtunnelling. (Bloomfield) They can also be used for gravity flow or pressure
applications. Some manufacturers are also making polymer pipes in sizes appropriate for
use as manholes. |
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The Benefits
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Polymer concrete pipes have several benefits
including high strength, corrosion resistance (they can be used in environments with pH
ranges of 1 to 13), low wall roughness, and high abrasion resistance. |
Status
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The use of polymer concrete pipes is becoming
more common in the following areas: direct bury, slip lining, jacking and microtunneling,
tunneling, and above the ground applications. Manufacturers like Hobas Pipe USA provide
polymer concrete pipes that have been manufactured under the most strict quality control
and assurance standards. |
Barriers
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The use of polymer concrete pipes has not been
widely accepted by governmental agencies, and not enough standards have been approved by
state and federal codes. |
Points of Contact
- Thomas D. Bloomfield, Meyer Pipes Engineering
GmbH. Otto-Brenner, Str. 5, Lueneburg, Germany. Phone: (49 4131) 953-0. Fax: (49 4131)
953-255.
- Hobas Pipe USA, 1413 Richey Road,Houston, TX
77073-3058, Email: info@hobaspipeusa.com
References
- Bloomfield, Thomas D., Polymer Concrete
Pipes, No-Dig International, October 1994
Disclaimer Statement
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Neither the Construction
Industry Institute nor Purdue University in any way endorses this
technology or represents
that the information presented can be relied upon without further investigation. |
PSK06/CHC
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