1. Polymeric Corrugated Metal Pipe (PCMP)
Hello, thank you all for taking time from your busy schedule and Jim thank you for putting on this meeting. My name is Dana Hayek and I work for Contech Engineered Solutions, as the Alaska Sales Engineer. How many people have heard of or worked with Contech/ its product lines prior to today? Our focus today’s meeting will be Polymeric Corrugated Metal Pipe.
Polymeric Corrugated Metal Pipe (PCMP)

2. Contech Engineered Site Solutions
Bridges, Drainage, Stormwater Management, Wastewater Treatment,
Erosion Control, Structures, Retaining Walls, Roadway & Earth Stabilization

3. Polymer
TRENCHCOAT ® protective film bonds to galvanized steel both chemically and physically
TRENCHCOAT Heavy
Gauge Polymer Film (10 mil)
It features a 10 mil polymer film applied to each side of a galvanized steel coil AFTER the galv process.
Zinc
Steel Alloy Layers
Steel

4. Polymer CSP coated with TRENCHCOAT offers: Excellent Adhesion
Chemical resistance to
Acids
Alkalis
Salts
Abrasion resistance
Weatherability
Water barrier imperviousness
It has been around in its present form since the late 70’s. It’s been highly tested and field proven. Not to the extent of AL-T2, but close. (review slide)

5. Environmental Limits for 50 Year Service Life
Polymer
Environmental Limits for 50 Year Service Life pH
Resistivity > 250 ohm-cm
Abrasion: Good in levels 1 - 3; use invert treatments in level 4
(review slide)
The resistivity limit should be shown as 250 ohm-cm (for 50-year life).

6. FHWA abrasion guidelines:
Abrasion is a function of flow velocity and bed load. In the absence of bed load, abrasion is not a factor.
FHWA abrasion guidelines:
Abrasion Level
Abrasion Condition
Bed Load
Flow Velocity (fps)
Level 1
Non – Abrasive
None
Low
Level 2
Low Abrasive
Minor
(sand)
< 5
Level 3
Moderate Abrasive
Moderate
(sand & gravel)
5 - 15
Level 4
Severe Abrasive
Heavy
(sand, gravel & rock)
> 15
FHWA has provided guidance with abrasion. They relate it to the type of objects moving through (bed load) and the velocity of flow.
Level 3 and 4 abrasion, even in a neutral environment, can wreak havoc on the invert, which can greatly reduce service life.

7. NCSPA Service Life Estimate – 16 ga
Polymer
NCSPA Service Life Estimate – 16 ga
Service Life
pH Levels
Resistivity
100 years
5 - 9
> 1500 ohm.cm
(review slide)
75 years
4 - 9
> 300 ohm.cm

8. Written by: Elzly Technology Corportation
LONG-TERM FIELD INVESTIGATION OF POLYMER COATED CORRUGATED STEEL PIPE (2012)
The data continues to support guidance for a polymer coating “add-on” life of 80 years.
The polymer coating continues to protect the galvanized steel pipe in severe environmental and abrasion conditions beyond the design conditions.
In all of the pipes, less than 5% of the polymer had coating delamination.
Written by: Elzly Technology Corportation
Prepared for: NCSPA

9. CULVERT
STORM DRAIN
DETENTION SYSTEM
Uses:

10. Polymeric Ultra-Flo
18” – 102” Dia.
“n” = 0.012

12. PROJECTS Contractor Location Year Details Frawner Corp
Fort Richardson Sewer Upgrade
2012
48" (1480 LF) & 42" (3,940 LF)
McKenna Brothers
Glenn Hwy/Eagle River Subdivision
2011
Pipe Arch 35" x 24" (300 LF) & 49" x 33" (380 LF)
GMC Contractors
54" (700 LF) & Pipe Arch 49" x 33" (100 LF)
Central Environmental
Verizon MSC Center/Anchorage
Pipe Arch 57" x 38 (630 LF) & 42" x 29" (740 LF)
MOA Street Main
2010
12" (120 LF)
Bristol Construction
Pt Mackenzie
24" (300) 36" (120) & 48" (100)
QAP
Huffman Rd
Poly Ultra Flo - 54"
Anchorage Water
2009
Pipe Arch 35" x 24" (180 LF) Class I perf
East Dowling Rd Ext
Poly Ultra Flo - 18" & 24"
Fort Richardson
2007
54" (1080 LF) 48" (320 LF) & 30" (270 LF)
HC Contractors
Richardson Hwy
18" (80 LF) & 24" (640 LF)
Wilder
Lakeshore Dr
2005
18" (380 LF) & 36" (240 LF)

13. Polymeric CMP
It features a 10 mil polymer film applied to each side of a galvanized steel coil AFTER the galv process.
Freeze/Thaw Testing: ASTM A742 – 100 cycles between room temperature and -18 C, without any visible changes to the polymer coating

14. LOCAL – 111 E 100th Ave
ANCHORAGE

15. Thank You!
Questions?