1041Polypropylene Culvert Pipe

1041.1 Scope. This specification covers polypropylene culvert pipe intended for use in the construction of

culverts, sewers and similar uses.

1041.2 Basis of Acceptance. Acceptance of polypropylene culvert pipe will be based upon the pipe being in

accordance with this specification. Pipe shall be provided from an approved manufacturer, and will be accepted based on certification, identification markings and results from tests required by the engineer.

1041.3 Material. All polypropylene culvert pipe, couplings and fittings shall be in accordance with AASHTO

M 330, Type S or Type D, except as follows.

1041.3.1 Section properties shall be within the following limits:

Minimum Maximum Nominal Size S (in.) Effective Pipe Wall Area Aeff (in.2/in.) Pipe Wall Centroid to Inside Face yc (in.) Pipe Wall Moment of Inertia I (in.4/in.) Area Ratioa Aeff /Ag Extreme Fiber Ratiob yc / c Inside Diameter Di (in.) Outside Diameter Do (in.) Double Wall (Type S) 12 0.168 0.445 0.0314 0.803 0.586 11.97 14.65 15 0.216 0.537 0.0538 0.821 0.687 14.85 17.81 18 0.217 0.569 0.0747 0.777 0.549 17.82 21.42 24 0.241 0.710 0.1318 0.723 0.558 23.85 28.34 30 0.248 0.882 0.2732 0.661 0.475 29.70 35.81 Triple Wall (Type D) 30 0.324 1.107 0.4416 0.676 0.681 29.70 35.81 36 0.315 1.363 0.4808 0.653 1.000 35.39 41.62 42 0.452 1.208 0.5554 0.817 0.797 41.38 47.72 48 0.348 1.535 0.9460 0.542 0.980 46.92 54.14 60 0.541 1.627 1.2088 0.739 0.812 58.65 67.17 a Ag equals gross area of pipe wall per unit length of pipe (in2/in.). b c equals the distance from the pipe wall centroid to the outermost fiber (in.).

1041.3.2 The pipe shall not be perforated unless otherwise specified.

1041.3.3 Field joints of polypropylene pipe shall provide circumferential and longitudinal strength to maintain

the pipe alignment, prevent separation of pipe and prevent infiltration of fill material. Coupling bands, if used, shall be of the same base material as the pipe. Prior to use, the design of coupling bands and fastening devices shall be submitted to and approved by Construction and Materials. Final acceptance of coupling bands and fastening devices will be based on field performance.

1041.3.4 The manufacturer shall provide to the engineer an itemized statement of the sizes, section properties

and lengths of pipe in each shipment.

1041.4 Sampling, Testing and Acceptance Procedures. Manufacturers furnishing pipe to MoDOT projects

shall be qualified as herein described. All pipe will be subject to inspection by the engineer at the source of manufacture, at an intermediate shipping terminal or at the destination. The engineer shall be permitted free access to all facilities and records as required to conduct inspection and sampling in accordance with Sec 106.

1041.4.1 Application for Placement on Qualified List. To become qualified, a written request shall be sent by

the manufacturer to Construction and Materials with the following:

1041.4.2 Maintaining Qualification. To maintain qualification, the manufacturer shall perform and maintain a

quality control program in accordance with the AASHTO Product Evaluation and Audit Solutions Certification Program. The manufacturer’s AASHTO Product Evaluation and Audit Solutions certification shall be maintained. The manufacturer shall maintain for three years a record of all test results, inspections and the bill of lading for each shipment of material used in the production of pipe and for each shipment of pipe. The manufacturer shall notify Construction and Materials at least 24 hours prior to each shipment of pipe to a MoDOT project. Additional pipe may be considered part of the original shipment when the ordered quantity was underestimated or material was lost or damaged. A bill of lading in accordance with Sec 1041.6 shall be provided for each shipment of pipe.

1041.4.3 Disqualification of a Manufacturer. A manufacturer may be disqualified from providing pipe for use

on MoDOT projects based on the discretion of Construction and Materials, for reasons including, but not limited to, not maintaining AASHTO Product Evaluation and Audit Solutions certification, failure of material to consistently meet specifications, falsification of any documentation, misbranding of the pipe, unsatisfactory performance in the field or for other reasons indicating lack of consistent material quality.

1041.4.3 1 In the case where a manufacturer loses AASHTO Product Evaluation and Audit Solutions

certification and was not disqualified for any other reason, reinstatement will be considered when the manufacturer is recertified by AASHTO Product Evaluation and Audit Solutions program.

1041.4.3 2 A manufacturer will not be considered for reinstatement until after one year from the date of removal

for falsification of documents.

1041.4.3 3 Three notices of failure to meet specification requirements within a 12-month period will be cause

for disqualification of the manufacturer for one year, effective from the date of the third notice.

1041.4.3 4 A manufacturer disqualified within one year of the end of a disqualification may be subject to

permanent removal, with no application for reinstatement accepted for a period of three years.

1041.4.4 Reinstatement of a Manufacturer or Plant. Consideration of reinstatement of a manufacturer once

disqualified will be no sooner than specified in Sec 1041.4.3, will require a written document from the manufacturer stating the reasons for disqualification and the action taken to correct those deficiencies, written concurrence from Construction and Materials that the problem has been suitably addressed, followed by an application in accordance with Sec 1041.4.1.

1041.4.5 Sampling of Material. Random sampling of the pipe will be conducted by the engineer to verify if the

pipe and material are in accordance with these specifications. Samples of polypropylene pipe will be obtained from fabricated culvert sections in accordance with AASHTO M 330 at a frequency determined by the engineer.

1041.4.6 Inspection. Inspection will include an examination of the pipe for markings, deficiency in specified

diameter, net length of fabricated pipe and any evidence of poor workmanship. The inspection may include taking samples.

1041.4.7 Testing. Specimen testing size and method of tests shall be in accordance with AASHTO M 330. The

contractor or manufacturer shall provide the equipment and personnel to cut a sample from a section of pipe. The sample shall include the markings or a record of the markings for that section of pipe.

1041.4.8 Unacceptable Material.

1041.4.8 1 Any individual section of pipe failing to meet the marking, diameter, length or workmanship

requirements of these specifications will be unacceptable. If 10 percent of the pipe in any lot fails to meet these requirements, the entire shipment of that pipe size may be rejected.

1041.4.8 2 If a test specimen taken in accordance with Sec 1041.4.7 fails to meet the requirements of AASHTO

M 330, the pipe sampled will be rejected and the lot will be resampled. A resample will be of the same size as the original sample. The resample shall be in accordance with these specifications, or the entire shipment will be rejected.

1041.5 MoDOT Identification Number. When the manufacturer contacts the engineer in accordance with Sec

1041.4 2, the engineer will assign a specific MoDOT identification number for each size of pipe in the shipment.

1041.6 Bill of Lading. A bill of lading or delivery receipt for each shipment of pipe shall be furnished to the

engineer at the shipping and destination points. The bill of lading shall contain an itemized statement of the sizes and lengths of pipe with the corresponding designated MoDOT identification number provided to the manufacturer for each size of pipe for that shipment. The bill of lading shall contain a certified statement. The certified statement shall be signed by an authorized representative of the manufacturer and shall state the following: “This certifies that the pipe and bands in this shipment are in accordance with MoDOT specifications and were fabricated at an approved plant.”