KYPEL Product Details

This product has been reviewed by Division of Materials, Kentucky Transportation Cabinet. As date of May 28, 2020, its status is phase 4.

Notes:

Diameters of up to 60" are approved for experimental use 8/21/13. This submittal has been sitting in Phase 4 since 2010. The Vendor has asked for further consideration for Approval. I will be sending him information for Approval from the header in the List of Approved Materials. Please review and comment. (5/6/2020) - BSMITH Additional Review Committee Members (5/28/2020) - BSMITH

Trade Name: DuroMaxx

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Designed to meet long-term service properties as well as long-term strength properties.  It is a steel reinforced high-density polyethylene resin pipe available in 24\" to 120\" diameters.  Steel reinforcing ribs provide long-term strength.  High density polyethylene resin pipe provides durability.  Resin material is Hydrostatic Design Basis (HDB) rated, or the same quality of resin used in gas, water, and septic transmission lines.  Lightweight with easy joint assembly and longer lengths to minimize installation costs.  Joint assembly is an integrated bell and spigot designed for high performance and ease of installation.  Available with a water tight joint incorporating a wide range of fittings such as bends, risers, bulk headed ends, and inlet/outlet pipes.  It is also compatible with a full range of fabricated fittings such as elbows, tees, wyes, slope junctions, and reducers.  Maximum cover heights range from 30\'''' to 50\'''' depending on the pipe diameter with a minimum cover height of 1\'''' in all diameters for HS-25 live loads.  Hydraulically equivalent to other smooth wall products.

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Does product meet requirements of following specifications? (Give Specification No.)

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Filling Date: Thu, 20 Nov 2008 18:16:47 -0500

Organization: Contech Engineered Solutions

Address: 9025 Centre Pointe Drive, West Chester , Ohio 45069

Telephone Number: 2705566844

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Generic Name:
This product is Patented

Manufacturer: CONTECH Construction Products, Inc.
Address: 2300 Hurstbourne Village
	Louisville, Kentucky 40299

Background description of company and its products:
	CONTECH Construction Products manufactures engineered site solutions.
Recommended Uses-Primary: Culverts and Drainage Structures
Recommended Uses-Alternate: Please Select ...
Outstanding Features or Advantages Claimed:
	Designed to meet long-term service properties as well as long-term strength properties. It is a steel reinforced high-density polyethylene resin pipe available in 24\" to 120\" diameters. Steel reinforcing ribs provide long-term strength. High density polyethylene resin pipe provides durability. Resin material is Hydrostatic Design Basis (HDB) rated, or the same quality of resin used in gas, water, and septic transmission lines. Lightweight with easy joint assembly and longer lengths to minimize installation costs. Joint assembly is an integrated bell and spigot designed for high performance and ease of installation. Available with a water tight joint incorporating a wide range of fittings such as bends, risers, bulk headed ends, and inlet/outlet pipes. It is also compatible with a full range of fabricated fittings such as elbows, tees, wyes, slope junctions, and reducers. Maximum cover heights range from 30\'''' to 50\'''' depending on the pipe diameter with a minimum cover height of 1\'''' in all diameters for HS-25 live loads. Hydraulically equivalent to other smooth wall products.
General Composition of Material:
	Composition of the pipe is a Hydrostatic Design Based (HDB) high density polyethylene (HDPE) resin with steel reinforcement. High strength steel reinforcement is encased in resin eliminating \"plastic creep\" concern. DuraMaxx is an environmentally supportive product utilizing 65% less HDPE than typical M294 HDPE pipe and recycled steel.
Date introduced on Market: 2008-05-01
Alternate for Following Existing Product: Drainage Pipe
Cost Per Unit Material (F.O.B.): $0.00
Royalty Cost: $0.00
Cost Per Unit in Place: $0.00

Material Specifications Furnished by Manufacturer? To Be Mailed
Product Availability: Non-Seasonal , Delivery at Site Within 0 Days after Receipt of Order
Can Samples Be Provided? No. Samples can not be provided
At Cost $0.00 for Laboratory Testing
Free for Field Testing

This product meets requirements of following specifications:
	AASHTO: Under Review ASTM: F2562 Fed. Spec.: KY: Others: Install - ASTM 2321
This product has/is being evaluated by following Highway authorities or agencies:
	Yes. Product is under consideration for approval by mulitple state highway agencies around the country.
This product is approved for use by other highway authorities or other agencies:
	Approval: Washington, Utah, Arizona, and New Mexico (Culvert & Stormdrain applications). Verbal Approval: Oregon
Another office of the Kentucky Department of Highways has been contacted.
	Contacted Office: Contact Date:

Product Web Page:

This information is filed by Michael Johnson on Nov 20, 2008
Contact Information:
	Contech Engineered Solutions
	9025 Centre Pointe Drive
	West Chester , Ohio 45069
	Phone: 2705566844
	Email: mjohnson@conteches.com


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File Name	Type	Size (KB)	Uploaded By	Organization	Date	Agency Only	Accept

Attached Files for This Product

10th St. Apartments .pdf	application/pdf	506	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5443	Yes
DMX Installation Guide 2020.pdf	application/pdf	1620	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5444	Yes
DuroMaxx Brochure.pdf	application/pdf	1614	978 Buan Smith	KYTC Division of Materials	Apr 24, 2020	5440	Yes
DuroMaxx Flow Testing Report.pdf	application/pdf	839	32 David Quarles	KYTC	Dec 02, 2008	114	Yes
DuroMaxx Installation ASTM D2321.pdf	application/pdf	217	32 David Quarles	KYTC	Dec 02, 2008	115	Yes
DuroMaxx Joints ASTM D3212.pdf	application/pdf	76	32 David Quarles	KYTC	Dec 02, 2008	117	Yes
DuroMaxx ManufacturingASTM F2562.pdf	application/pdf	818	32 David Quarles	KYTC	Dec 02, 2008	133	Yes
DuroMaxx_30 - 120 inch Specification.pdf	application/pdf	272	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5445	Yes
Engineering Report - Quality Control Testing- Nov 08.pdf	application/pdf	76	32 David Quarles	KYTC	Dec 02, 2008	123	Yes
FW Question DuroMaxx.msg	application/octet-st	1854	313 Michael T. Black, P.E.	KYTC	Sep 22, 2015	3404	Yes
General Information Sheet.pdf	application/pdf	6	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5446	Yes
KY 169 MP 2.69 (30 inch DuroMaxx).pdf	application/pdf	885	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5448	Yes
KY 32 MP 4.61 (DuroMaxx).pdf	application/pdf	1230	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5447	Yes
KY 40 MP 19.6 (120inch DuroMaxx).pdf	application/pdf	3578	978 Buan Smith	KYTC Division of Materials	Jul 24, 2020	5508	Yes
KY 40 MP 19.6 (120inch DuroMaxx).pdf	application/pdf	3578	978 Buan Smith	KYTC Division of Materials	Jul 24, 2020	5509	Yes
KYTC Letter (Acceptance for DuroMaxx Request) 5.6.2020.pdf	application/pdf	146	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5441	Yes
Park Road Drainage Improvements.pdf	application/pdf	1345	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5449	Yes
PDH-Profile Wall HDPE.pdf	application/pdf	767	32 David Quarles	KYTC	Dec 02, 2008	134	Yes
Sand Run Pump Station Storage.pdf	application/pdf	514	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5450	Yes
Scott Air Force Base Drainage Improvements.pdf	application/pdf	834	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5451	Yes
The Fields Park Culvert Replacement.pdf	application/pdf	688	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5452	Yes
Wendell H. Ford Regional Training Center.pdf	application/pdf	674	978 Buan Smith	KYTC Division of Materials	May 07, 2020	5453	Yes

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Division	Reviewer	Recommendation	Comment	Response	Date	Delete
Recommendations and Comments

KYTC	313 Michael T. Black, P.E. Agency	Y Approve	This product has been used previously although not routinely. Final approval would be subject to Highway Design Drainage personnel recommendation. Fill height table modification and compliance would also be necessary.		Oct 15, 2020	2777
KYTC	903 Gary Newton Agency	U Undecided	I'll go with our Drainage guys on this product.		Sep 29, 2020	2746
KYTC	572 Doug Gesso Agency	U Undecided	Documentation of Manning's n values to apply for the full range of sizes is needed before approval for utilization. Testing of one or two larger sizes that indicates the 24" is a worst case could be sufficient. All other considerations are deferred to SME's regarding materials & structural design.		Jun 30, 2020	2698
KyTC Construction	1092 Matt Simpson Agency	Y Approve			Jun 18, 2020	2695
Transportation Cabinet	613 Richard Thomas Agency	U Undecided	Since this pipe is composed of composite materials, has any testing been performed in regards to separation of the materials? If the steel is exposed, will it weather well? Has it been galvanized? If a pipe section is too long and has to be cut, is the exposed steel treated or otherwise protected? What kind of end treatments are used or recommended? Testing for Mannings' roughness was submitted using a 24" pipe. Manufactured pipe specify 30"-120" diameters. Has similar testing been performed for larger pipe. The 24" pipe shows lower roughness values at higher flows.		Jun 03, 2020	2692
KYTC	904 Kevin Rust Agency	Y Approve	Definitely a need for this product in both maintenance and construction.		May 28, 2020	2691
KYTC	528 Wesley Glass Agency	Y Approve	In favor as an potential alternate but will need a Design and Drainage folks review. Can review previous installations (that can be identified) for performance. Also would need a determination on how it would fit in to fill height tables.		May 06, 2020	2686
KYTC	275 Scott Phelps Agency	N/A	Diameters of up to 60" are approved for experimental use.		Aug 20, 2013	1248
KYTC	32 David Quarles Agency	Y Approve			Oct 28, 2011	935
KYTC	32 David Quarles Agency	Y Approve	Samples of 30" and 36" diameter DuroMaxx were tested at the Div. of Materials. They all passed the PIPE STIFFNESS test at 5% deflection and at 20% deflection there were no cracks. There was a drop off of the load/deflection curve not seen when testing M294 pipe. From: Booker, Trevor, Materials: Looks like AASHTO will likely be re-balloting the Steel Reinforced Polyethylene Ribbed Pipe as a provisional specification and limiting it to 24”. We should follow suit in any experimental use and keep it to 24” as well.		Oct 28, 2011	934
KYTC	32 David Quarles Agency	Y Approve	Samples of 30" and 36" diameter DuroMaxx were tested at the Div. of Materials. They all passed the PIPE STIFFNESS test at 5% deflection and at 20% deflection there were no cracks. There was a drop off of the load/deflection curve not seen when testing M294 pipe. From: Booker, Trevor, Materials: Looks like AASHTO will likely be re-balloting the Steel Reinforced Polyethylene Ribbed Pipe as a provisional specification and limiting it to 24”. We should follow suit in any experimental use and keep it to 24” as well.		Oct 28, 2011	933
KYTC	32 David Quarles Agency	Y Approve			Apr 09, 2010	391
KYTC D6	62 Robert Hill Agency	Y Approve	Looks like another good alternative. Curious about compatibility with other HDPE, metal or concrete pipes when maintaining existing drainage systems.		Apr 29, 2009	281
Ky Assoc. of Hwy Contractors	47 Michael LaRue Agency	U Undecided	Industry comments expressed many of the same concerns as expressed by David Quarles. There were recommnedations that if KYTC wants to pursue this product, it should be tested through experiments and maybe using the Kentucky Engineering Center.		Apr 27, 2009	270
KYTC D3	60 Greg Meredith Agency	Y Approve	I recommend that this product is approved for trial use. This could be a viable alternative to other types of culvert/entrance pipe materials.		Apr 27, 2009	257
KYTC D9	48 Phil Mauney Agency	Y Approve	Should be field tested on a KYTC maintenance repair project. Will only be viable if it will be competitive on pricing.		Apr 27, 2009	253
KYTC D5	76 dav kessinger Agency	Y Approve	Another Pipe will assist in overall price competition. Would this also have KY to start looking at a Steel Reinforced Polyethylene Ribbed Pipe as a specification or at least a separate section of the LAM?		Apr 17, 2009	204
Maintenance	36 Wayne Simpson Agency	Y Approve			May 14, 2009	132
KYTC D2	39 Brad Houck Agency	Y Approve	We should move to field testing.Being able to go with less cover height will me a tremendous help in the maintenance world.		Mar 26, 2009	111
KYTC D8	66 Bruce Neely Agency	Y Approve	Should be another viable alternative. Should be another viable alternative.		Mar 27, 2009	109
KYTC	32 David Quarles Agency	U Undecided	Samples of 30" and 36" diameter DuroMaxx were tested at the Div. of Materials. They all passed the PIPE STIFFNESS test at 5% deflection and at 20% deflection there were no cracks. There was a drop off of the load/deflection curve not seen when testing M294 pipe. From: Booker, Trevor, Materials: Looks like AASHTO will likely be re-balloting the Steel Reinforced Polyethylene Ribbed Pipe as a provisional specification and limiting it to 24”. We should follow suit in any experimental use and keep it to 24” as well.	The primary issue is that the quality tests for the M294 product are being applied to DuroMaxx. These are two different products using different profiles and materials. The result is that the profiles of the two products exhibit different failure mechanisms. This difference is captured in the specification requirements for the two products. An all HDPE closed cell profile such as M294 can fail due to localized wall buckling if the width/thickness ratios of the elements within the profile are not properly designed or manufactured. When the pipe is subjected to large deflections, relatively high moments are induced at the crown, invert and springline of the pipe. These moments induce tensile and compressive stresses into the elements of the wall profile. If the compressive stress in any of the profile elements exceeds the buckling limit for that member, it will exhibit local buckling (as is described in the M294 specification) and it will lose the ability to carry additional loads, thereby resulting in a drop in the load/deflection curve. This testing is a quality control tool to determine proper material distribution during manufacturing. AASHTO has determined that they want to see the pipe be able to withstand at least a 20% deflection level before this drop can occur. This is entirely different than the mechanisms associated with the DuroMaxx profile. As the DuroMaxx pipe is deflected, it also increasingly develops bending moments within the ribs of the profile. These moments induce tensile and compressive stresses in the inner and outer fibers of the rib profile. As the steel ribs are loaded, they can begin to lean due to the helix angle that exists when the ribs are continuously wrapped around the pipe. This leaning can result in a decrease in the slope of the load/deflection curve at large deflection levels. However, unlike in the profile of the M294 pipe, this leaning does not signify any buckling within the load carrying portion of the profile (i.e. the steel rib). Compression testing performed by Dr. Ian Moore of Queenâ€™s University has shown that the DuroMaxx steel profiles will not buckle within the range of covers recommended for DuroMaxx. You also wonâ€™t see any of the â€œreverse curvatureâ€ that signifies localized buckling due to excessive compressive loads as is described within the M294 specification. The portion of the specification to which DuroMaxx is manufactured (ASTM F2562) that describes this test is section 6.5. In this section, the specification states that â€œwhere the peak load is reached before 20% deflection, the load at 20% deflection shall be a minimum of 75% of the peak loadâ€. This was included in the specification for DuroMaxx to account for this difference. The samples you tested all meet this criteria. All of this only occurs at large levels of deflectionâ€¦certainly beyond the limits of generally acceptable installation deflections. As such, these are really more QC tests than they are indicative of in-field performance. I hope this explains the differences between the two products and specifications. As we discussed, Iâ€™ll be sending you some more information regarding the testing performed by Dr. Moore as well as some other information for your review. Darrell Sanders, P.E., Chief Engineer - Drainage, Truss & Specialty Products, Off: 513-645-7511	Apr 14, 2009	72
Construction	77 Rachel Mills Agency	Y Approve			May 15, 2009	54
KYTC D1	41 Michael McGregor Agency	Y Approve			May 14, 2009	49

NEW PRODUCTS EXPLANATION OF PHASES
Phase 1		Product has been submitted and is pending initial review by the chairman of the committee.
Phase 2		The product is under preliminary review by appropriate sections(s)/Division(s) and awaiting recommendations(s) to the chair from the appropriate section(s)/division(s). Minimal study of available literature is necessary at this stage.
Phase 3		Product is under detailed laboratory and/or literature review by the New Product Review Committee.
Phase 4		Product has been approved for experimental use by the New Product Review Committee. The product may be used on a limited basis; however, change orders must be submitted and approved prior to use of the product. The product will be monitored for performance for two years, but the performance period may be changed depending on the type of product and susceptibility to weathering. If the product performs poorly and poses a safety risk, the product may be removed before scheduled replacement.
Phase 5		The product has been approved for use by the New Products Review Committee. The contractor must have the product approved by the KYTC and the Federal Highway Administration (if applicable) prior to use of the product on a project. Standard Specifications or Special Notes are being developed for this type of material/product.
Phase 6		Current specifications exist for this type of product. It may be requested that the manufacturer submit samples, NTPEP test data, and/or provide requested information to have the product approved and placed on the List of Approved Materials (if applicable).
Phase 7		Product has been sent the New Product Review Committee for final approval consideration.
Phase 8		Not a product to be evaluated by the New Products Review Committee.
Phase 9		Specifications exist for product however, there is no List of Approved Materials for this type of product at this time. Product may be used provided it meets the required specification or special condition(s) listed.
Phase 10		Product has been approved and specifications or special note exists.
Phase 11		Product is approved for use however there is no KYTC specification or special note. Product must meet manufacturer specifications and must have KYTC approval before use.
Phase 12		Product has been experimentally approved previously and is currently under evaluation on select projects. Not permitted on future projects until field evaluations are complete.
Phase 13		Product not approved for use in Kentucky highway or bridge construction.