1047.1 Scope.
These specifications cover corrugated polyethylene culver t pipe intended to be used for the construction of culverts.
1047.2 Material.
Corrugated polyethylene culvert pipe and fittings shall conform to the requirements herein specified and to the requirements of AASHTO M 294. Unless otherwise specified, the pipe may have a full circular cross-section with a corrugated surface both inside and outside or the pipe may have a corrugated surface outside and a smooth inner liner of the same material fused to the inside of the pipe. The pipe shall not be perforated unless otherwise specified. In case of conflict with AASHTO M 294, these specifications shall prevail.
1047.3 Basis of Acceptance.
Acceptance of polyethylene culvert pipe will be based upon a satisfactory manufacturer's certified analysis and guarantee and pipe identification markings or upon tests on samples of the material or upon both. The frequency of sampling will be determined by the engineer. The manufacturer shall provide equipment and personnel required to obtain samples as directed by the engineer.
1047.4 Accepted Brands of Polyethylene Pipe .
No polyethylene pipe will be accepted under these specifications until the pipe manufacturer's certified analysis and guarantee has been approved by the engineer. Misbranding or other misrepresentation, and non-uniformity of product, will each be considered a sufficient reason to discontinue the acceptance of any brand under these specifications and notice sent to the manufacturer will be considered to be notice to all companies which handle that particular brand.
1047.4.1 Pipe Manufacturer's Certified Analysis.
The manufacturer of each brand shall file with the Division Engineer, Materials, a certificate setting forth the name or brand of pipe to be furnished, the specified type, category, grade and class of polyethylene compounds. The certificate shall be sworn to for the manufacturer by a person having legal authority to bind the company. The certified analysis shall have attached a certified test report from an approved independent testing laboratory showing specific results of tests performed on each diameter pipe to be furnished, conforming to all requirements of these specifications. The pipes tested shall be randomly selected for test by the independent testing laboratory as being representative of that manufacturer's pipe.
1047.4.2 Pipe Manu facturer's Guarantee.
The manufacturer of the pipe shall submit with the certified analysis a guarantee providing that all pipe furnished shall conform to the specification requirements, shall bear a suitable identification brand or mark, and shall be replaced without cost to the Commission when not in conformity with the specified requirements. The guarantee shall be so worded as to remain in effect so long as the manufacturer continues to furnish material. The manufacturer shall make such tests and measurements as necessary to ensure that the material produced complies with all specification requirements. These tests and measurements shall be identified by the identification symbols or code used on the pipe in a manner which will permit the manufacturer to produce specific reports showing test results representative of specific lots of polyethylene pipe. Copies of reports of these tests shall be kept on file and shall be submitted

to the engineer upon request. The brand shall be removed or obliterated by the manufacturer on all material where control tests, as outlined herein, do not show conformance to this specification.
1047.5 Sampling.
Samples of polyethylene pipe will be obtained from fabricated culvert sections in accordance with AASHTO M 294 at a frequency determined by the engineer.
Samples may be taken at the point of manufacture, intermediate distribution point, or at the project as determined by the engineer.
1047.6 Testing.
Testing specimen size and method of test shall be in accordance with
AASHTO M 294.
1047.7 Jointing Systems.
Field joints of corrugated polyethylene pipe shall provide circumferential and longitudinal strength to maintain the pipe alignment, prevent separation of pipe, and prevent infiltration of side fill material. Coupling bands, if used, shall be of the same base material as the pipe. Corrugations in the bands shall have the same configuration as the corrugations in the pipe ends being connected. The design of any field jointing system shall be submitted to Project Operations - Materials for approval prior to use.
1047.8 Inspection.
1047.8.1
The engineer may inspect the fabricated pipe at the manufacturing plant, intermediate distribution point, or project. The engineer shall be furnished by the manufacturer, an itemized statement of the sizes and lengths of pipe in each shipment. The engineer shall have free access to the manufacturing plant or intermediate distribution point for inspection, and every facility shall be extended for this purpose. Any pipe which has been previously rejected and included in a later lot will be considered sufficient cause for rejection of the entire lot. A lot is defined as all the material presented for inspection at one time.
1047.8.2
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.
1047.9 Rejection.
1047.9.1
Any individual section of pipe failing to meet the marking, diameter, length, or workmanship requirements of these specifications will be rejected. If 25 percent of the pipe in any lot fails to meet these requirements, the entire shipment may be rejected.
1047.9.2
If a pipe fails to meet the requirements for pipe stiffness, pipe flattening, environmental stress cracking or brittleness, 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 must comply in all respects or the entire shipment will be rejected.
1047.9.3
Rejections may be cause for discontinuance of acce ptance by brand registration and guarantee in which case the manufacturer will be required to provide proof of satisfactory testing of each lot, prior to inspection.