Difference between revisions of "Category:1028 Corrugated Polyvinyl Chloride Culvert Pipe"

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|'''Approved and Pre-Qualified List'''
 
|'''Approved and Pre-Qualified List'''
 
|-
 
|-
|[[106.1 Approved and Pre-Qualified Lists#106.1.1028 Sec 1028|QC/QA Corrugated Polyvinyl Culvert Pipe ]]
+
|[https://www.modot.org/media/488 QC/QA Corrugated Polyvinyl Culvert Pipe]
 +
|-
 +
|'''MGS Information'''
 +
|-
 +
|[https://www.modot.org/general-services-specifications-mgs-subject Current General Services Specifications (MGS) By Subject]  
 
|}
 
|}
This article establishes procedures for inspecting, acceptance and reporting of polyvinyl chloride (PVC) culvert pipe.  .  Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec1028.pdf Sec 1028] for MoDOT’s specifications.
 
 
==1028.1 Apparatus==
 
  
(a) Rule with suitable gradations to accurately measure the material to be inspected.
+
This article establishes procedures for inspecting, acceptance and reporting of polyvinyl chloride (PVC) culvert pipe.    Refer to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1028] for MoDOT’s specifications.  Additional information on pipe, selection, inspection, and payment can be found in Sec 724, Sec 730, [[:Category:724 Pipe Culverts|EPG 724 Pipe Culverts]] and [[:Category:730 Corrugated Polyethylene Pipe Culverts|EPG 730 Corrugated Polyethylene Pipe Culverts]].
  
(b) Micrometer capable of measuring to 0.0001 in. (0.00254 mm) and accurate to within at least 0.001 in. (0.0254 mm).
+
==1028.1 Construction Project Acceptance==
  
(c) The [[:category: 1028 Corrugated Polyvinyl Chloride Culvert Pipe#1028.4 Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide |Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide]].
+
Polyvinyl chloride culvert pipe is to be accepted for use on the basis of the pipe manufacturer being on the approved list and the supplier/manufacturer obtaining and providing pipe ID#s for each shipment/lot/size of pipe. A random sampling system is administered by headquarters construction and materials to ensure the quality and engineering properties of the pipe.
  
==1028.2 Procedure==
+
The supplier/manufacture of the pipe should get the ID#s prior to shipment using [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm_Thermoplastic.pdf Pipe Shipping Report Form for reporting to the Central Office, GS-17 Form 1].  When the ID#s are assigned by headquarters Construction and Materials, the supplier/manufacturer will be notified if the shipment has been selected for sampling.  This gives the supplier/manufacturer an opportunity to ship extra pipe to the jobsite to ensure the sampling process does not leave the contractor short of material. 
  
===1028.2.1 Polyvinyl Chloride Culvert Pipe===
+
If the supplier/manufacturer of the pipe does not get the ID#s prior to shipment, headquarters Construction and Materials Division should be notified.
Polyvinyl Chloride culvert pipe is to be accepted for use on the basis of the pipe manufacturer having filed the required documents set forth in the specifications, the plant being approved and qualified, certification by the manufacturer, manufacturer quality control documentation, identification marking, random sampling and testing, and field inspection.
 
  
====1028.2.1.1 Manufacturer Approval====
+
==1028.2 Maintenance Acceptance==
Prior to acceptance of polyvinyl chloride culvert pipe, the manufacturer shall have furnished Construction and Materials a Quality Control Plan as required by [http://www.modot.mo.gov/business/standards_and_specs/Sec1028.pdf Sec 1028] a statement certifying that fabrication will be in accordance with the QC plan, a list of the sources of material used in fabrication, a statement guaranteeing that all material used in fabrication will be in accordance with the applicable specification.
 
  
A list of those manufacturers who have filed acceptable documents is shown in
+
The need to assign ID#s and the random sampling process applies to pipes purchased for maintenance as it does for construction projects.  Completion of the sample records for materials purchased under a MoDOT purchase order is to be as described in [[:Category:1101 Materials Purchased by a Department Purchase Order|EPG 1101 Materials Purchased by a Department Purchase Order]].
[[106.1 Approved and Pre-Qualified Lists#106.1.1028 Sec 1028|106.1.1028 Sec 1028]].
 
  
During any visit to the manufacturer, the manufacturer’s records shall be reviewed for test result and inspection documentation. The records shall be specific to each shipment of pipe, and shall indicate the purchase order number or project number, route and county, date of inspection, quantity (ft or m), pipe diameter and number of sockets and fittings.
+
==1028.3  Manufacturer Approval==
  
If a manufacturer is found not to be in compliance with the specifications, notify Construction and Materials so the manufacturer’s approval can be reconsidered.
+
Prior to supplying polyvinyl chloride culvert pipe, the manufacturer shall have furnished Central Office – Construction and Materials, a "Pipe Manufacturer's Certified Analysis" and "Pipe Manufacturer's Guarantee" as required by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1041]. The manufacturer shall specify in their application for placement on the qualified list which standard their pipe is fabricated to; English or metric.  The manufacturer shall provide the definition of a lot or it will be considered one day’s production. See the list of [http://modot.mo.gov/business/materials/pdf/vol_1/FS1047T1.pdf Qualified Fabricators of Corrugated Polyvinyl Chloride  Culvert Pipe] for manufacturers who have filed acceptable documents.  
  
If the manufacturer is found falsifying documentation, Construction and Materials is to be notified immediately for removal of that manufacturer or plant from the approval list.
+
If random sampling results in the rejection of the polyvinyl chloride pipe, acceptance on the basis of pipe manufacturer's certified analysis and guarantee may immediately be discontinued and all polyvinyl chloride pipe of that brand shall then be sampled, tested, and approved prior to use until such time as shall be determined by Construction and Materials Division. Construction and Materials will advise all districts should acceptance of a brand by pipe manufacturer's certified analysis and guarantee be discontinued. When test results again indicate consistent compliance to specification requirements, Construction and Materials will notify all districts to reinstate that brand to the approved list of manufacturers.  
  
====1028.2.1.2 Identification Markings====
+
During any visit to the manufacturer, the manufacturer’s records shall be reviewed for test result and inspection documentation. The records shall be specific to each shipment of pipe, and shall indicate the purchase order number or project number, route, a county, date of inspection, quantity (ft. or m), and pipe diameter.  
Each pipe and fitting is to be clearly marked, in accordance with ASTM F 949, at not more than 5 ft. (1.5 m) intervals by the manufacturer and the marking is to contain the manufacturer’s name or trademark, nominal size, “ASTM F 949,” the type of plastic “PVC” and minimum cell classification, and the extrusion code.
 
  
====1028.2.1.3 Random Sampling====
+
If a manufacturer is found not to be in compliance with the specifications, notify Construction and Materials so the manufacturer’s approval can be reconsidered. If the manufacturer is found falsifying documentation, Construction and Materials is to be notified immediately for removal of that manufacturer or plant from the approval list.  
Random samples are to be obtained from fabricated culvert sections and submitted to the Laboratory for determination of physical properties. Samples may be taken at the point of manufacture, intermediate distribution point, or at the project. The manufacturer shall provide the definition of a lot. If no definition is provided, a lot will be one day’s production. Or, if at the project, a lot shall be the entire quantity shipped.
 
  
Samples are to be submitted to the Laboratory from approximately 10 percent of the lots of pipe presented for inspection. The sample shall consist of 3 specimens each a minimum of one diameter in length. The specimens shall be obtained from different sections in the lot and shall be taken from the end of the pipe.
+
==1028.4 Random Sampling==
  
If the sample fails to meet the physical requirements, the pipe sampled will be rejected and the lot resampled. A resample will be the same number of specimens as the original sample. The resample must comply in all respects or the entire lot will be rejected
+
Random sample locations will be determined by headquarters Construction and Materials as approximately 10% of shipments statewide.  The specific pipes determined for testing by headquarters will take into account the limitations of MoDOT’s laboratory testing equipment.  The samples are to be obtained by the districts and submitted to the Laboratory for determination of physical properties. Samples may be taken at the point of manufacture, intermediate distribution point, or at the project.  The sample shall consist of 2 specimens, each a minimum of one diameter in length plus two additional corrugations, not including the bell or the spigot ends. If the sample fails to meet the physical requirements, the pipe sampled will be rejected and the lot re-sampled. A resample will be the same number of specimens as the original sample. The resample must comply in all respects or the entire lot will be rejected.
  
====1028.2.1.4 Field Inspection====
+
==1028.5 Field Inspection ==
Field inspection shall be performed using the [[:category: 1028 Corrugated Polyvinyl Chloride Culvert Pipe#1028.4 Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide |Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide]].
+
 
 +
When necessary, field inspection of the polyvinyl chloride pipe itself shall be performed using the [[1028.4 Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide |Polyvinyl chloride (PVC) Pipe Inspection Guide]].  For the purposes of field inspection, the definition of a lot shall be the entire quantity shipped.
  
Frequency of inspection shall be at the discretion of the engineer, but shall be performed on approximately 10 percent of shipments and a minimum of once per month.
+
Apparatus Needed:
  
The engineer may inspect the fabricated pipe at the manufacturing plant, intermediate distribution point, or project. The engineer shall be furnished by the manufacturer, and 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.
+
: 1) Rule with suitable graduations to accurately measure the material to be inspected.  
 +
: 2) Micrometer capable of measuring to 0.0001 in. (0.00254 mm) and accurate to within at least 0.001 in. (0.0254 mm).
 +
: 3) Polyvinyl chloride (PVC) Pipe Inspection Guide.
  
The manufacturer shall specify in their application for placement on the qualified list to which standards their pipe is fabricated:  English or metric. The standard fabrication units will be designated on the qualified list for each manufacturer. All measurements shall be made using the applicable units when determining compliance with specification.
+
The engineer may inspect the fabricated pipe at the manufacturing plant, intermediate distribution point, or project. 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.  
  
The specified inside diameter, in accordance with [http://www.modot.mo.gov/business/standards_and_specs/Sec0728.pdf Sec 728], shall be reduced by no more than 7.5 percent by deflection when installed. All pipe installed shall be tested for deflection.
+
The standard fabrication units will be designated on the qualified list for each manufacturer. All measurements shall be made using the applicable units when determining compliance with specification.  
  
Pipe that has been rejected at the origin shall be marked with a small, filled circle or orange paint on the inside of the barrel, in the downstream end. The pipe is subject to inspection and rejection at destination for any damage that may have occurred in handling. Pipe that is rejected at destination shall be marked in the same manner as pipe rejected at the origin. The inspector may choose to mark inspected pipe to prevent inspection of the same pipe more than once. However, the “MoDOT OK” stamp should not be used.
+
The specified inside diameter, in accordance with applicable ASTM, should comply with the table below. Again, all measurements shall be made using the same units as to which the pipe was fabricated.  
  
If pipe is rejected for not being in accordance with specifications and the requirements set forth in the Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide, a letter documenting the failure shall be provided to the manufacturer, with a copy to Construction and Materials. The inspection guide used to inspect the rejected pipe shall be included with the letter to the manufacturer and Construction and Materials. The letter should include the location of the plant at which the failure occurred.
+
Pipe that has been rejected at the origin shall be marked with a small, filled circle or orange paint on the inside of the barrel, in the downstream end. The pipe is subject to inspection and rejection at destination for any damage that may have occurred in handling. Pipe that is rejected at destination shall be marked in the same manner as pipe rejected at the origin.  
 +
The inspector may choose to mark inspected pipe to prevent inspection of the same pipe more than once. However, the “MoDOT OK” stamp should not be used.  
  
==1028.3 Sample Record==
+
If pipe is rejected for not being in accordance with specifications and the requirements set forth in the Polyvinyl chloride (PVC) Pipe Inspection Guide, a letter documenting the failure shall be provided to the manufacturer, with a copy to Construction and Materials. The inspection guide used to inspect the rejected pipe shall be included with the letter to the manufacturer and Construction and Materials. The letter should include the location of the plant at which the failure occurred.  
  
Field inspection shall be recorded in Site Manager, as described in [[Automation Section 3510]]. The sample record shall include the brand name, manufacturer’s name, size and lengths. The sample record is to indicate acceptance or rejection. If the sample record indicates rejection, the reason for rejection shall be stated in the remarks or the test result details.
+
==1028.6 Sample Record==
  
The manufacturer or shipper is required to notify Construction and Materials of impending shipments using the Pipe Shipping Report Form ([[GS- 17 Form 1]]). This information will allow MoDOT to track the materials, obtain samples and perform Quality Assurance inspection as necessary.
+
When CO Construction and Materials issues ID#s, they will create the corresponding sample record for acceptance of the pipe.  
  
A SiteManager sample record shall be created for each size of pipe in each shipment.
+
When samples are taken by the districts, the inspector should create a sample record representing the sample.
  
Each SiteManager sample record will be created by Construction and Materials.
+
When field inspection is performed by the district the results should be recorded in SiteManager by either adding the template and details to the original sample record created by headquarters or by creating a new sample record with a contract tab quantity of 0 to avoid double reporting the pipe.
  
‘’’Polyvinyl Chloride Culvert Pipe.’’’ If the sample record indicates acceptance, the basis of acceptance of the pipe shall be that the material is an approved brand and that examination of the material indicates that the material conforms to all of the requirements of the specifications.
+
Individual SiteManager sample records should be created for each size of pipe.
  
Completion of the sample records for materials purchased under a MoDOT purchase order is to be as described in [[:category:1101 Maintenance Materials#1101.1 Materials Purchased by a MoDOT Purchase Order|1101.1 Materials Purchased by a MoDOT Purchase Order]].
+
==1028.7 Polyvinyl chloride Culvert Pipe Properties==
  
==1028.4 Corrugated Polyvinyl Chloride (PVC) Pipe Inspection Guide==
+
Polyvinyl chloride pipe must be ASTM F949 “46 psi” material with a smooth interior and a corrugated exterior.
  
This guide will assist in the inspection of all types and configurations of corrugated Polyvinyl Chloride (PVC) pipe, sockets and fittings. Answer each question and take the action indicated for the answer given. If no condition is provided for a particular answer, move on to the next questionThe inspector is responsible to confirm this inspection guide is in accordance with current specifications.
+
===1028.7.1 Identification Markings===
  
Every lot should be visually inspected. The lot that appears to have the defects, or a lot selected at random if all lots appear to be of equal quality, shall be inspected in greater detail to generally establish the Quality Control practices of the manufacturer. And at least one pipe per size offered in the lot shall be inspected in detail using this inspection guide. The manufacturer may provide the definition of a lot. If no definition is provided, a lot will be one day’s production. Or, if at the project, a lot shall be the entire quantity shipped.
+
Each pipe and fitting is to be clearly marked, in accordance with the applicable ASTM, at not more than 10 ft. (3 m) intervals by the manufacturer and the marking is to contain the manufacturer's name or trademark, nominal size, ASTM designation, the plant designation code, and the date of manufacture or an appropriate code.  
 
 
If this inspection guide is used to inspect a rejected pipe, it shall be submitted with the notification to the manufacturer of the failure to meet specification.
 
  
 +
===1028.7.2 Internal Diameter Table===
 +
<center>'''Table 1028.7.1 Internal Diameter Tolerances for PVC Pipe'''
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
|+
 
|Has any of the material or pipe included in this lot been rejected during a previous inspection visit? '''If Yes,''' the entire lot is unacceptable. ||Yes|| No
 
|-
 
|Is this manufacturer approved for production of PVC pipe? (Refer to [[106.1 Approved and Pre-Qualified Lists#106.1.1028 Sec 1028|106.1.1028 Sec 1028]]) '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the pipe accompanied by a bill of lading or delivery receipt at this location? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Does the bill of lading or delivery receipt contain an itemized list of the sizes and lengths of pipe? '''If No,''' stop, the pipe is unacceptable. ||Yes ||No
 
|-
 
|Does the bill of lading or delivery receipt contain a MoDOT sample ID or is it accompanied by a Material Shipping Report Form? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Does the bill of lading or delivery receipt contain the certified statement, “This certifies that the pipe, sockets, and fittings in this shipment are in accordance with MoDOT specifications and were fabricated at an approved plant.” '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the certified statement signed by an authorized representative of the manufacturer? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the pipe marked (in accordance with ASTM F 949) with the manufacturer’s name, tradename, or trademark? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
| Is the pipe marked (in accordance with ASTM F 949) with the nominal pipe size? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the pipe marked (in accordance with ASTM F 949) with the designation of “ASTM F 949 (46 psi)” or “ASTM F 949 (115 psi)”? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the pipe marked (in accordance with ASTM F 949) with the type of plastic “PVC” and minimum cell classification (ie. 12454-B)? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Is the pipe marked (in accordance with ASTM F 949) with the extrusion code, including the date and location of manufacture? (The date and location may be encoded in the manufacturer’s extrusion code. If unsure, contact the manufacturer.) '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Do the markings repeat on the pipe on intervals not exceeding 5 ft? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Are the letters of the markings at least ¼ in. tall? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Are there any visible cracks, holes, foreign materials or other injurious defects that would be an indication of poor workmanship? '''If Yes,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Are the color, density and other physical properties uniform along the length of the pipe? '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|}
 
 
The outside diameter is measured by placing a circumferential wrap tape around the pipe, making sure the tape is flat against the pipe surface. The diameter reading is observed and estimated to the nearest 0.005 in. If a circumferential wrap tape is unavailable, a standard tape measure may be used instead. Wrap the tape measure around the pipe, keeping the tape as close and flat as possible, and read the circumference from the tape. To obtain the average outside diameter, repeat this process three times and average the observed values. Calculate the diameter using the following equation:
 
 
::Diameter = Circumference / 3.1415
 
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
 
|+
 
|Is the average outside diameter within the specified tolerance? (Refer to Figure 1028.4 ASTM F 949.) '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|}
 
 
The wall thickness is measured using a cylindrical or ball anvil tubing micrometer (preferably accurate to within 0.001 in.). A minimum of 8 measurements are made at closely spaced intervals to ensure that the minimum and maximum wall thicknesses have been determined. The values are then averaged to obtain the average wall thickness. This process is used for inner, outer, and valley wall thickness.
 
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
 
|+
 
|Is the inner, outer, and valley wall thickness greater than or equal to the corresponding minimum specified thickness (where applicable)? (Refer to Figure 1028.4 ASTM F 949.) '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|}
 
 
The average inside diameter is calculated from the average outside diameter and the effective wall thickness, te. The effective wall thickness will be measured using the same micrometer (described above) used make the other wall thickness measurements. The effective wall thickness will be the thickness of the pipe from the outside of the pipe to the inside of the pipe. Make at least 8 measurements at various locations along the circumference of the pipe. Average the 8 measurements to obtain the average effective wall thickness. Use the following equation to obtain the average inside diameter:
 
 
::Average Inside Diameter = Average Outside Diameter – (2 x te)
 
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
 
|+
 
|Is the average inside diameter within the specified tolerance? (Refer to Table 1028.4.) '''If No,''' stop, the pipe is unacceptable. ||Yes|| No
 
|-
 
|Has 10 percent of the pipe in the same lot of pipe been rejected? '''If Yes,''' stop, the entire lot of pipe is unacceptable. ||Yes|| No
 
|}
 
 
'''Sockets and Fittings (where applicable)'''
 
{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
 
|+
 
|Are the sockets or fittings made of the same base material as the pipe? '''If No,''' stop, the couplings or fittings are unacceptable. ||Yes|| No
 
|-
 
|Do the socket dimensions meet the requirements given in Table 2 of ASTM F 949? '''If No,''' stop, the socket is unacceptable. ||Yes|| No
 
|-
 
|Do the fitting dimensions meet the requirements given in Table 3 of ASTM F 949? '''If No,''' stop, the fitting is unacceptable. ||Yes|| No
 
|-
 
|If molded fitting, does it meet the requirements given in Table 4 of ASTM F 949? '''If No,''' stop, the fitting is unacceptable. ||Yes|| No
 
|}
 
 
=== Figure 1028.4 ASTM F 949===
 
[[image:1028.4.gif|center|725px|thumb|<center>’’’ Figure 1028.4, ASTM F 949 Table 1 Pipe Dimensions’’’</center>]]
 
 
===Table 1028.4 Diameter Dimensional Tolerances (English)===
 
{| border="1" class="wikitable" style="text-align:center"
 
 
|+  
 
|+  
! style= "background:#BEBEBE " | Nominal Pipe Size, Inch !!style= "background:#BEBEBE " | Average Inside Diameter, Inch!!style= "background:#BEBEBE " | Lower Tolerance, Inch !!style= "background:#BEBEBE "|Lower Tolerance, mm<sup>a</sup>!!style= "background:#BEBEBE "| Upper Tolerance, Inch!!style= "background:#BEBEBE "| Upper Tolerance,mm<sup>a</sup>
+
! style="background:#BEBEBE" width="200"|English Nominal Inside Diameter, in. !!style="background:#BEBEBE" | Lower Tolerance, in.!!style="background:#BEBEBE" |Upper Tolerance, in
|-
 
|4|| 3 15/16|| 3 15/16|| 100 ||3 15/16|| 101
 
|-
 
|6 ||5 15/16|| 5 14/16|| 150|| 5 15/16|| 150
 
|-
 
|8|| 7 14/16|| 7 14/16|| 200 ||7 14/16 ||200
 
|-
 
|10|| 9 14/16|| 9 13/16|| 250|| 9 14/16|| 251
 
|-
 
|12|| 11 11/16|| 11 11/16|| 297|| 11 12/16|| 298
 
|-
 
|15|| 14 5/16|| 14 5/16|| 363|| 14 6/16|| 365
 
 
|-
 
|-
|18|| 17 9/16|| 17 8/16|| 445 ||17 10/16|| 447
+
| align="center" |12 ||align="center" | 11 11/16 ||align="center" | 11 3/4
 
|-
 
|-
|21|| 20 11/16|| 20 10/16|| 525|| 20 12/16|| 527
+
|align="center" |15 ||align="center" | 14 5/16 ||align="center" | 14 3/8
 
|-
 
|-
|24|| 23 8/16|| 23 7/16|| 595 ||23 8/16 ||598
+
|align="center" |18 ||align="center" | 17 1/2 ||align="center" | 17 9/16
 
|-
 
|-
|27 |||26 7/16|| 26 6/16|| 670|| 26 8/16|| 673
+
|align="center" |21 ||align="center" | 21 5/16 ||align="center" | 21 5/8
 
|-
 
|-
|30|| 29 8/16|| 29 6/16|| 746|| 29 9/16 ||751
+
|align="center" |24 ||align="center" | 23 3/16 ||align="center" | 23 1/2
 
|-
 
|-
|36|| 35 8/16|| 35 6/16|| 898|| 35 9/16|| 904
+
|align="center" |30 ||align="center" | 29 3/16 ||align="center" | 29 1/2
 
|-
 
|-
|colspan="6"|<sup>a</sup> The metric dimensions have been approximately converted from their English counterparts.
+
|align="center" |36 ||align="center" | 35 3/8 ||align="center" | 35 9/16
 
|}
 
|}
 +
</center>

Latest revision as of 10:03, 12 April 2019

Approved and Pre-Qualified List
QC/QA Corrugated Polyvinyl Culvert Pipe
MGS Information
Current General Services Specifications (MGS) By Subject

This article establishes procedures for inspecting, acceptance and reporting of polyvinyl chloride (PVC) culvert pipe. Refer to Sec 1028 for MoDOT’s specifications. Additional information on pipe, selection, inspection, and payment can be found in Sec 724, Sec 730, EPG 724 Pipe Culverts and EPG 730 Corrugated Polyethylene Pipe Culverts.

1028.1 Construction Project Acceptance

Polyvinyl chloride culvert pipe is to be accepted for use on the basis of the pipe manufacturer being on the approved list and the supplier/manufacturer obtaining and providing pipe ID#s for each shipment/lot/size of pipe. A random sampling system is administered by headquarters construction and materials to ensure the quality and engineering properties of the pipe.

The supplier/manufacture of the pipe should get the ID#s prior to shipment using Pipe Shipping Report Form for reporting to the Central Office, GS-17 Form 1. When the ID#s are assigned by headquarters Construction and Materials, the supplier/manufacturer will be notified if the shipment has been selected for sampling. This gives the supplier/manufacturer an opportunity to ship extra pipe to the jobsite to ensure the sampling process does not leave the contractor short of material.

If the supplier/manufacturer of the pipe does not get the ID#s prior to shipment, headquarters Construction and Materials Division should be notified.

1028.2 Maintenance Acceptance

The need to assign ID#s and the random sampling process applies to pipes purchased for maintenance as it does for construction projects. Completion of the sample records for materials purchased under a MoDOT purchase order is to be as described in EPG 1101 Materials Purchased by a Department Purchase Order.

1028.3 Manufacturer Approval

Prior to supplying polyvinyl chloride culvert pipe, the manufacturer shall have furnished Central Office – Construction and Materials, a "Pipe Manufacturer's Certified Analysis" and "Pipe Manufacturer's Guarantee" as required by Sec 1041. The manufacturer shall specify in their application for placement on the qualified list which standard their pipe is fabricated to; English or metric. The manufacturer shall provide the definition of a lot or it will be considered one day’s production. See the list of Qualified Fabricators of Corrugated Polyvinyl Chloride Culvert Pipe for manufacturers who have filed acceptable documents.

If random sampling results in the rejection of the polyvinyl chloride pipe, acceptance on the basis of pipe manufacturer's certified analysis and guarantee may immediately be discontinued and all polyvinyl chloride pipe of that brand shall then be sampled, tested, and approved prior to use until such time as shall be determined by Construction and Materials Division. Construction and Materials will advise all districts should acceptance of a brand by pipe manufacturer's certified analysis and guarantee be discontinued. When test results again indicate consistent compliance to specification requirements, Construction and Materials will notify all districts to reinstate that brand to the approved list of manufacturers.

During any visit to the manufacturer, the manufacturer’s records shall be reviewed for test result and inspection documentation. The records shall be specific to each shipment of pipe, and shall indicate the purchase order number or project number, route, a county, date of inspection, quantity (ft. or m), and pipe diameter.

If a manufacturer is found not to be in compliance with the specifications, notify Construction and Materials so the manufacturer’s approval can be reconsidered. If the manufacturer is found falsifying documentation, Construction and Materials is to be notified immediately for removal of that manufacturer or plant from the approval list.

1028.4 Random Sampling

Random sample locations will be determined by headquarters Construction and Materials as approximately 10% of shipments statewide. The specific pipes determined for testing by headquarters will take into account the limitations of MoDOT’s laboratory testing equipment. The samples are to be obtained by the districts and submitted to the Laboratory for determination of physical properties. Samples may be taken at the point of manufacture, intermediate distribution point, or at the project. The sample shall consist of 2 specimens, each a minimum of one diameter in length plus two additional corrugations, not including the bell or the spigot ends. If the sample fails to meet the physical requirements, the pipe sampled will be rejected and the lot re-sampled. A resample will be the same number of specimens as the original sample. The resample must comply in all respects or the entire lot will be rejected.

1028.5 Field Inspection

When necessary, field inspection of the polyvinyl chloride pipe itself shall be performed using the Polyvinyl chloride (PVC) Pipe Inspection Guide. For the purposes of field inspection, the definition of a lot shall be the entire quantity shipped.

Apparatus Needed:

1) Rule with suitable graduations to accurately measure the material to be inspected.
2) Micrometer capable of measuring to 0.0001 in. (0.00254 mm) and accurate to within at least 0.001 in. (0.0254 mm).
3) Polyvinyl chloride (PVC) Pipe Inspection Guide.

The engineer may inspect the fabricated pipe at the manufacturing plant, intermediate distribution point, or project. 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.

The standard fabrication units will be designated on the qualified list for each manufacturer. All measurements shall be made using the applicable units when determining compliance with specification.

The specified inside diameter, in accordance with applicable ASTM, should comply with the table below. Again, all measurements shall be made using the same units as to which the pipe was fabricated.

Pipe that has been rejected at the origin shall be marked with a small, filled circle or orange paint on the inside of the barrel, in the downstream end. The pipe is subject to inspection and rejection at destination for any damage that may have occurred in handling. Pipe that is rejected at destination shall be marked in the same manner as pipe rejected at the origin. The inspector may choose to mark inspected pipe to prevent inspection of the same pipe more than once. However, the “MoDOT OK” stamp should not be used.

If pipe is rejected for not being in accordance with specifications and the requirements set forth in the Polyvinyl chloride (PVC) Pipe Inspection Guide, a letter documenting the failure shall be provided to the manufacturer, with a copy to Construction and Materials. The inspection guide used to inspect the rejected pipe shall be included with the letter to the manufacturer and Construction and Materials. The letter should include the location of the plant at which the failure occurred.

1028.6 Sample Record

When CO Construction and Materials issues ID#s, they will create the corresponding sample record for acceptance of the pipe.

When samples are taken by the districts, the inspector should create a sample record representing the sample.

When field inspection is performed by the district the results should be recorded in SiteManager by either adding the template and details to the original sample record created by headquarters or by creating a new sample record with a contract tab quantity of 0 to avoid double reporting the pipe.

Individual SiteManager sample records should be created for each size of pipe.

1028.7 Polyvinyl chloride Culvert Pipe Properties

Polyvinyl chloride pipe must be ASTM F949 “46 psi” material with a smooth interior and a corrugated exterior.

1028.7.1 Identification Markings

Each pipe and fitting is to be clearly marked, in accordance with the applicable ASTM, at not more than 10 ft. (3 m) intervals by the manufacturer and the marking is to contain the manufacturer's name or trademark, nominal size, ASTM designation, the plant designation code, and the date of manufacture or an appropriate code.

1028.7.2 Internal Diameter Table

Table 1028.7.1 Internal Diameter Tolerances for PVC Pipe
English Nominal Inside Diameter, in. Lower Tolerance, in. Upper Tolerance, in
12 11 11/16 11 3/4
15 14 5/16 14 3/8
18 17 1/2 17 9/16
21 21 5/16 21 5/8
24 23 3/16 23 1/2
30 29 3/16 29 1/2
36 35 3/8 35 9/16

Articles in "1028 Corrugated Polyvinyl Chloride Culvert Pipe"

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