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Polypropylene Pipe (PP)

ACPA Pipe School Barry Bauer PE, LEED AP Oldcastle Precast. Polypropylene Pipe (PP). The Ohio State University!. Polypro Pipe (PP). Who has seen this product in their market? Is it a storm product or sanitary?. What are the markets hearing?. Provide cost savings

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Polypropylene Pipe (PP)

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  1. ACPA Pipe School Barry Bauer PE, LEED AP Oldcastle Precast Polypropylene Pipe (PP)

  2. The Ohio State University!

  3. Polypro Pipe (PP) Who has seen this product in their market? Is it a storm product or sanitary?

  4. What are the markets hearing? • Provide cost savings • Storm and Sanitary applications? • Higher pipe stiffness than PVC • Significantly improved joint tightness • Extended Bells • Highly impact resistant • Resistant to UV degradation • Longitudinal strength • AASHTO and ASTM specs • Easier to install • Extended Bells • Multiple varieties

  5. Is it storm or sanitary? Or both? • Major producer makes both! • HP Storm is dual wall 12”-60” • Sanitite HP is dual wall 12” – 30” and 30”-60” triple wall. • Both use the same product for 12”-30” dual wall!!!! Larger diameters are differentiated by third layer or not.

  6. National Specifications ASTM F- 2736 – (6”- 30”) Dual Wall PP for Sanitary and Storm Drain ASTM F- 2764 – (30” - 60”)Triple Wall PP for Sanitary Sewer ASTM F 2881 – (36” – 60”) Dual Wall PP for Storm Drain Applications AASHTO M330-13 – (12” - 60”) Dual Wall PP for Storm Drain Applications (latest spec approval for PP)

  7. Sanitary ASTM Standard Specs • ASTM F – 2764 Manufactured with highly advanced polypropylene resin for 30”– 60” sizes. Triple wall construction provides a smooth interior and exterior wall design supported by a corrugated structural core. • Provides improved stiffness • Greater beam strength • Minimizes Deflection • Enhances performance • Improves Jobsite durability • Arguably, simplifies backfill installation • References Slow Crack Growth requirement 2736 does not • References Ceramic Bell Wrap. 2736 does not • ASTM F – 2736 Pipe manufactured in diameters 6”– 30” and is made of a dual-wall construction which provides a smooth interior (Also used for Storm spec). • Results in superior stiffness • Improved beam strength.

  8. Dual Wall vs. Triple Wall PPWhat are the differences? 12”- 30”Dual Wall Polypropylene Pipe for Sanitary or Storm Extended Ceramic Polymer Reinforced Bell Double Gasket on Spigot Thicker wall cross-section Minimum 46 PII Stiffness for all sizes except for storm 30” – 60” Triple Wall Polypropylene Pipe for Sanitary Extended Ceramic Polymer Reinforced Bell Double Gasket on Spigot Minimum 46 PII Stiffness for all sizes

  9. Extrusion Process • Seamless & Monolithic • Same Manufacturing Platform as HDPE Pipe • 12”-30” on Type VII • 36”-60” on Dross 1800 + Special Downstream Equipment • Standard 13 & 20 ft Lengths, 12”-48” • 60” =16’ & 20’ only PP Pipe Manufacturing

  10. Structural Analysis: AASHTO LRFD Bridge Design Specifications – Section 12 Buried Structures Design Elements Section Properties Material Properties Pipe/Soil Interaction Loading Conditions Design LRFD Wall Thrust Deflection Buckling Bending Strain Combined Strain

  11. Raw Material • PP Resin Technology • Impact co-polymer polypropylene (PP) material (ASTM D4101) • PP has been used for sewer pipe in Europe since 1970’s • PP provides unique balance of stiffness, flexibility & impact resistance • Provides necessary flexibility to shed load over pipe • Meets pipe stiffness criteria for sanitary industry • Greater stiffness & beam strength than HDPE • Greater impact resistance than PVC

  12. Raw Material & Pipe Color • Raw material is opaque • Add grey color concentrate to… • Provide UV protection • Differentiate from HDPE storm pipe • Enhance post installation visual inspection

  13. SaniTite HP and HP Storm Pipe Stiffness PS 46 PII Industry Standard for Sanitary • Diameters : 12”- 30” Dual-Wall • Greater pipe stiffness reduces deflection (old news) Pipe Stiffness (lbs/inch/inch)

  14. SaniTite HP Stiffness PS 46 PII Industry Standard • Diameters : 30” – 60” Triple-Wall • Greater pipe stiffness reduces deflection Pipe Stiffness (lbs/inch/inch)

  15. HP Storm Pipe Stiffness

  16. PP Pipe Stiffness Comparisons Storm and Sanitary • Modulus of Elasticity, E values • E = 110 KSI for HDPE • E = 170 KSI for PP • E = 380 KSI for PVC

  17. Fill Heights & Backfill Materials HDPE PP for Storm PP for Sanitary

  18. Installation for PP (and HDPE) per Manufacture* • BACKFILL MATERIAL Material selection is the first and most important step to creating a structurally sound backfill envelope. In general, backfill material should be of an aggregate nature, able to be compacted, if necessary, into a structurally sound structure. A variety of materials, including some native soils, meet these requirements. *Source: Plastic Manufacturer Standard Installation Guide – May 2012

  19. Pipe Stiffness Easier to handle & install Reduces sags / misalignment in line & grade Still a light weight product Triple Wall Profile = Longitudinal Beam Strength

  20. Extended bell & double gasketed spigot Provides larger sealing area lowering the risk leaks due to construction errors and joint offsets ~14 inches vs. ~7 inches for standard PP and HDPE Allows for increase in Water-Tight pressure test per ASTM 3212 – from 10.8 psi to 15 psi Joint Design for Sanitary

  21. Joint Lab Performance • PP is Lab Testable to 15 psi per ASTM D3212 Standards • HDPE is 10.8 psi per ASTM D3212 in Lab Test minimum

  22. Joint Assembly

  23. Standard Installation for PP - same as HDPE, PVC and SRPE

  24. So, which PP are you getting? Which is it ?

  25. Apparent Strengths: • Go to market strategy • Selling “Up Stream” • “new” product • Boots on the Ground • Specifications • Stiff Pipe • $$$ • Joint Performance

  26. Weaknesses: • New • Untested for Time • Sanitary Use – Cautious • 12” is the smallest • UV properties untested for time/ Oxidation • What pipe are you getting? • Field Repairs? • Fittings • Burns • Floats

  27. Threat • Looks Like RCP? • Fill Heights? • Successful Projects? • Smaller Diameters? • Specification Successes • Going to Take a Market Share – • Guess who will get hit?

  28. Opportunities: • Backfill requirements • Fiber RCP • Third Party Testing? • Know your market! Where has it sold, did it do well? Indiana Example

  29. How can we fight it? • What can I do? • What can my company do? • What can our industry do? • Where are the battlefields? • Any ideas?

  30. ASTM • Who is a member? Raise a hand. • Who is a member of C13? • Anyone ever hear of F17? • Which subcommittees? • How do I sign up? • How much time does it take? • But I am not a plastic expert!!!??

  31. How ASTM helps? • Being an active member keeps competitions offensive efforts at bay. • It’s a way to become offensive by altering our specs and theirs to our advantage. • Ever hear a good defense is a good offense? • Its hard to sell a product without an ASTM.

  32. Commitment --- • Concentration is basketball in a nutshell. Concentration is anticipation, which leads to recognition, which leads to reaction, which leads to execution. • - Bobby Knight, Hall of Fame basketball coach • “The only thing that counts is your dedication to the game. You run on your own fuel; it comes from within you.” • - Paul Brown, Hall of Fame football coach • My idea of a good hit is when the guy wakes up on the sidelines with train whistles blowing in his head." - Jack Tatum. • "Winning is the most important thing in my life, after breathing," George Steinbrenner said in 1998, when his Yankees were doing a whole lot of it -- 114 games worth plus the AL pennant and World Series.. "Breathing first, winning next."

  33. Questions?

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