Polypropylene Pipe PP ACPA Pipe School Houston Texas

Polypropylene Pipe (PP) ACPA Pipe School Houston Texas Barry Bauer PE, LEEP AP Oldcastle Precast

PP Pipe Today, what is the story? § What is the latest on the Street? § National Specifications § Manufacturing and Product Testing § Product Characteristics & Properties § Joint Performance § Installation § Structures § Repairs § Fittings § Questions 2

3 What is the market hearing? § Provide cost savings § Higher pipe stiffness than PVC § Significantly improved joint tightness § Highly impact resistant (except w Modified BB test) § Resistant to UV degradation § Longitudinal strength § Single or Double Gaskets § New AASHTO spec § Best product ever § Easier to install § Extended Bell/Spigot w dual gaskets § Multiple varieties

4 National Specifications § ASTM F- 2736 – (6”- 30”) Dual Wall PP for Sanitary and Storm Drain Applications § ASTM F- 2764 – (30” - 60”)Triple Wall PP for Sanitary Sewer Applications § ASTM F 2881 – (36” – 60”) Dual Wall PP for Storm Drain Applications § AASHTO M 330 -13 – (12” - 60”) Dual Wall PP for Storm Drain Applications (latest spec approval for PP) § ASTM F 477 – Elastomeric Gasket (like ASTM C 1619 for RCP) § ASTM D 2412 – Pipe Stiffness Test § ASTM D 3212 – Water-Tight (resistant) Joint Lab Test § ASTM F 2487 – Water-Tight (resistant) Joint Field Test § ASTM D 2321 – Installation Methods

Dual Wall vs. Triple Wall PP 12”- 30” Dual Wall Polypropylene Pipe for Sanitary or Storm o o 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 o Extended Ceramic Polymer Reinforced Bell o Double Gasket on Spigot o Minimum 46 PII Stiffness for all sizes 5

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 § 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. 6

7 Storm AASHTO / ASTM Standard Specs q ASTM F- 2736 – (6”- 30”) Dual Wall PP for Sanitary and Storm Drain Applications q ASTM F 2881 – (36” – 60”) Dual Wall PP for Storm Drain Applications q AASHTO M 330 -13 – (12” - 60”) Dual Wall PP for Storm Drain Applications (latest spec approval for PP) o My suggestion – KNOW it and OWN it along w AASHTO M 294

PP Pipe Manufacturing q Extrusion Process o Seamless & Monolithic q Same Manufacturing Platform as HDPE Pipe o 12”-30” on Type VII o 36”-60” on Dross 1800 + Special Downstream Equipment q Standard 13 & 20 ft Lengths, 12”-48” o 60” =16’ & 20’ only 8

Structural Analysis: AASHTO LRFD Bridge Design Specifications – Section 12 Buried Structures q Design Elements o o Section Properties Material Properties Pipe/Soil Interaction Loading Conditions q Design LRFD o o o Wall Thrust Deflection Buckling Bending Strain Combined Strain 9

Third Party Testing q Design Analysis o Utah State University o Ohio University o Timothy J Mc. Grath, Ph. D (formerly w Simpson, Gumpertz & Heger) 10

11 Utah State University Testing

12 Raw Material q PP Resin Technology o Impact co-polymer polypropylene (PP) material (ASTM D 4101) ü PP has been used for sewer pipe in Europe since 1970’s o PP provides unique balance of stiffness, flexibility & impact resistance ü Provides necessary flexibility to shed load over pipe ü Meets pipe stiffness criteria for sanitary industry ü Greater stiffness & beam strength than HDPE ü Greater impact resistance than PVC

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

Sani. Tite HP (Sanitary & Storm) PP Pipe Stiffness 14 Pipe Stiffness (lbs/inch) q Diameters : 12”- 30” Dual-Wall o Greater pipe stiffness reduces deflection (old news) PS 46 PII Industry Standard for Sanitary

Sani. Tite HP (Sanitary) PP Pipe Stiffness q Diameters : 30” – 60” Triple-Wall Pipe Stiffness (lbs/inch) o Greater pipe stiffness reduces deflection PS 46 PII Industry Standard 15

PP Pipe Stiffness Comparisons Storm and Sanitary q Modulus of Elasticity, E values o E = 110 KSI for HDPE o E = 170 KSI for PP o E = 380 KSI for PVC Minimum Stiffness Values for Flexible Pipes by Size and Source (PII) DIA (IN) Storm/Sanitary PVC (1) Storm HDPE (2) Storm PP (3) Storm PP (4) PP Sanitary (5) 60 N/A 15 19 30 46 48 N/A 20 25 35 46 42 N/A 21 27 35 46 36 46 22. 5 29 40 46 30 46 29 36 46 46 24 46 34 44 50 46 Notes: 1. PVC per Manufacturer Literature 2. HDPE values per AASHTO M 295 3. PP Storm per AASHTO MP 21 4. PP Dual Wall Storm per Manufacturer Literature 5. PP Sanitary Triple Wall per Manufacturer Literature 16

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

Installation for PP (and HDPE) per Manufacture* 18 q 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, 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 Triple Wall Profile = Longitudinal Beam Strength § Easier to handle & install § Reduces sags / misalignme nt in line & grade § Still a light weight product

20 Joint Design for Sanitary q Extended bell & double gasketed spigot o Provides larger sealing area lowering the risk leaks due to construction errors and joint offsets o ~14 inches vs. ~7 inches for standard PP and HDPE o Allows for increase in Water-Tight pressure test per ASTM 3212 – from 10. 8 psi to 15 psi

Joint Lab Performance q PP is Lab Testable to 15 psi per ASTM D 3212 Standards q HDPE is 10. 8 psi per ASTM D 3212 in Lab Test minimum 21

Joint Assembly 22

Joint Assembly Inline Bell RCP & PVC Oversized Bell You will see this in every presentation ever done by the plastic folks!!! 23

Standard Installation for PP same as HDPE, PVC and SRPE National Specification ASTM D 2321 - Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications AASHTO Section 30 - Thermoplastic Pipe CSA B 1800 Standards - Thermoplastic Pipe Sani. Tite HP , N 12 HP recommended installation State / Provincial / Local Specifications Site Specific 24

25 Storm Installation for PP q 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

Differences in Installation for PP, HDPE, PVC or SRPE ? ? ? Source: Plastic Manufacturer Standard Installation Guide – May 2012 26

WT Structure Connections NPC KOR-N-SEAL Compression fit to structure Z-LOK Boot Adapter Cast into structure A-Lok Compression Adapter Cast into structure 27

28 Field Repairs for PP Rubber with Stainless Steel Collar if pressure test required, mainly in sanitary

29 Fittings

So, which PP are you getting? ü PP storm dual wall ü PP storm extended bell and spigot w dual gaskets ü PP Sanitary dual wall single gaskets üPP Sanitary dual wall extended bell & spigot single gaskets üPP Sanitary Triple wall extended bell & spigot dual gaskets Which is it ? 30

31 Why Concrete? Foltz Concrete • Currently producing gasketed or mastic joint reinforced concrete pipe in 15" through 72" sizes and all classes. • Currently we are servicing the North and South Carolina markets, with a presence in Virginia, West Virginia, Maryland Tennessee. • These items have been added to the ADS product offering in response to customer requests for a multi-product offering. • And why is that? ? ?

32 Strengths: • • Go to market strategy “new” product ADS power Specifications Stiff Pipe $$$ Joint Performance

33 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

34 Opportunities: • • • Backfill requirements Fiber RCP Third Party Testing? Confusion!! It fails by cracking. . NOT deflection? ? ? Huh?

35 Threat • • Looks Like RCP? Fill Heights? Successful Projects? Smaller Diameters?

36 Questions?