33 05 05.43 Mandrel Testing.pdf
PDF 88 KB Posted
- Attached to
- 2027 Sewer System Improvements Project
- Solicitation number
- Not on record
- Issued by
- Dauphin County, Harveys Lake Borough, Pennsylvania
About this file
This is a technical specification document for mandrel testing procedures related to plastic sewer piping installation, applicable to Capital Region Water's 2027 Sewer System Improvements Project in Harrisburg, Pennsylvania. The specification outlines deflection testing requirements for plastic sewer piping following backfill installation and compaction. The contractor must perform vertical ring deflection testing after backfilling has been in place for at least 30 days but no longer than 12 months using properly sized rigid ball or "go, no go" mandrels with diameters not less than 95 percent of the pipe's base or average internal diameter. Testing must be conducted without mechanical pulling devices, and allowable maximum deflection is limited to five percent of the original vertical internal diameter as specified in ASTM D2122.
Prior to testing initiation, the contractor must submit testing procedures, equipment lists, testing sequence schedules, and test gage calibration certifications. The specification requires lamping operations after flushing and cleaning to verify uniform line and grade installation, with rejected sections to be removed and reinstalled at no cost. All outlets, wye branches, and laterals must be plugged and braced to resist test pressures. Any piping exceeding allowable deflection limits must be located, excavated, replaced, and retested entirely at the contractor's expense with no additional cost to the owner, ensuring compliance with the referenced ASTM International standards and related utility sewer pipe requirements outlined in Section 33 31 00 of the project specifications.
View the file
Other files
Show 40 more
Latest 50 of 116 listed here. See the rest on GovTribe.
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
33 05 05.43 Mandrel Testing
33 05 05.43 - 1
1.0 GENERAL
1.1 Summary
A. Section Includes: Deflection testing of plastic sewer piping.
B. Related Requirements:
1. Section 33 31 00 – Utility Sewer Pipe and Accessories: Pipe materials and accessories normally encountered with gravity sewerage piping.
1.2 Reference Standards
A. ASTM International:
1. ASTM D2122 - Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings.
1.3 Submittals
A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.
B. The Contractor shall submit following items prior to start of testing:
1. Testing procedures.
2. List of test equipment.
3. Testing sequence schedule.
4. Certification of test gage calibration.
C. Test and Evaluation Reports: Indicate results of piping tests.
2.0 PRODUCTS
2.1 Deflection Testing
A. Equipment:
1. Properly sized rigid ball or "go, no go" mandrel.
2. Pull/retrieval ropes.
3.0 EXECUTION
3.1 Examination
A. Section 01 73 00 - Execution Requirements: Requirements for installation examination.
B. The Contractor shall verify that piping is ready for testing.
C. The Contractor shall verify that trenches are backfilled and properly compacted.
3.2 Preparation
A. Section 01 73 00 - Execution Requirements: Requirements for preparation.
33 05 05.43 Mandrel Testing
33 05 05.43 - 2
B. Lamping – the Contractor shall:
1. Lamp gravity piping after flushing and cleaning.
2. Perform lamping operation by shining light at one end of each pipe section between manholes.
3. Observe light at other end.
4. Pipe not installed with uniform line and grade will be rejected.
5. Remove and reinstall rejected pipe sections.
6. Clean and lamp until pipe section is installed to uniform line and grade.
C. Plugs:
1. The Contractor shall plug outlets, wye branches, and laterals.
2. The Contractor shall brace plugs to resist test pressures.
3.3 Field Quality Control
A. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.
B. Deflection Testing of Plastic Sewer Piping:
1. The Contractor shall perform vertical ring deflection testing on plastic sewer piping after backfilling has been in place for at least 30 days, but not longer than 12 months.
2. Allowable maximum deflection for installed plastic sewer pipe is no greater than five(5) percent of original vertical internal diameter.
3. The Contractor shall perform deflection testing using properly sized rigid ball or "go, no go" mandrel.
4. Rigid Ball or Mandrel Diameter:
a. Not less than 95 percent of base or average ID of pipe.
b. Pipe Diameter: Comply with ASTM D2122.
5. The Contractor shall perform testing without mechanical pulling devices.
6. The Contractor shall locate, excavate, replace, and retest piping that exceeds allowable deflection, at no additional cost to the Owner.
END OF SECTION
File details come from the government source that posted it. Updated .