Category:1026 Reinforced Concrete Culvert Pipe - Revision history

Smithk: Per CM, removed archaic SiteManager info and replaced with AASHTOWARE info

2021-09-16T13:46:02Z

Per CM, removed archaic SiteManager info and replaced with AASHTOWARE info

Smithk: /* 1026.2.2.4 Steel Reinforcement */ Per CM, updated GS-13 form link

2021-04-22T14:02:16Z

1026.2.2.4 Steel Reinforcement: Per CM, updated GS-13 form link

← Older revision		Revision as of 09:02, 22 April 2021
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	====1026.2.2.4 Steel Reinforcement====		====1026.2.2.4 Steel Reinforcement====
	Reinforcing steel for use in the manufacture of concrete pipe shall be in accordance with Sec 1036 and will be accepted according to [[106.1 Source of Supply and Quality Requirements#Materials\|EPG 106.1 Source of Supply and Quality Requirements]]. The pipe manufacturer shall use only PAL material. The material shall be reported by the pipe manufacturer using the PAL receiver form, [~~http~~://www.modot.~~mo.gov~~/~~business~~/~~materials~~/~~pdf~~/~~vol_1~~/~~GS013F2~~.pdf GS-13 Form 2]. The pipe manufacturer shall retain certification and mill test reports for 1 year and make them available to the inspector when requested.		Reinforcing steel for use in the manufacture of concrete pipe shall be in accordance with Sec 1036 and will be accepted according to [[106.1 Source of Supply and Quality Requirements#Materials\|EPG 106.1 Source of Supply and Quality Requirements]]. The pipe manufacturer shall use only PAL material. The material shall be reported by the pipe manufacturer using the PAL receiver form, [https://www.modot.org/sites/default/files/documents/construction_and_materials/material_qualified_product_listing/gs013f2.pdf GS-13 Form 2]. The pipe manufacturer shall retain certification and mill test reports for 1 year and make them available to the inspector when requested.

	Note that reinforcement of pipe wall may be either that specified under Circular Reinforcement or as under Elliptical Reinforcement. If the latter, special pipe marking is also required by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026.3.10.2].		Note that reinforcement of pipe wall may be either that specified under Circular Reinforcement or as under Elliptical Reinforcement. If the latter, special pipe marking is also required by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026.3.10.2].

Smithk at 20:20, 18 August 2020

2020-08-18T20:20:06Z

← Older revision		Revision as of 15:20, 18 August 2020
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	\|[http://library.modot.mo.gov/RDT/reports/Ri07058/or08014.pdf Report 2008]		\|[http://library.modot.mo.gov/RDT/reports/Ri07058/or08014.pdf Report 2008]
	\|-		\|-
	\|'''See also:''' [~~http~~://www.modot.~~gov~~/~~services/OR/byDate.htm Innovation Library~~]		\|'''See also:''' [https://www.modot.org/research-publications Research Publications]
	\|}		\|}
	====Manufacturer Approval====		====Manufacturer Approval====

Smithk: updated link to qualified list

2019-04-12T14:56:17Z

updated link to qualified list

← Older revision		Revision as of 09:56, 12 April 2019
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	\|'''Approved and Pre-Qualified List'''		\|'''Approved and Pre-Qualified List'''
	\|-		\|-
	\|[~~http~~://www.modot.~~mo.gov~~/~~business~~/~~materials/pdf/vol_1/FS1026T1.pdf~~ Qualified Fabricators of Reinforced Concrete Culvert Pipe]		\|[https://www.modot.org/media/486 Qualified Fabricators of Reinforced Concrete Culvert Pipe]
	\|-		\|-
	\|'''MGS Information'''		\|'''MGS Information'''
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	Prior to acceptance of reinforced concrete culvert pipe, the manufacturer shall have furnished Construction and Materials a statement certifying that the quality control procedures at the plant meet the requirements of the American Concrete Pipe Association (ACPA) or National Precast Concrete Association (NPCA) Compliance Audit and Certification Program or an alternate quality control program approved by Construction and Materials, a list of material used in fabrication, and a statement guaranteeing that all material used in fabrication will be in accordance with the applicable specification.		Prior to acceptance of reinforced concrete culvert pipe, the manufacturer shall have furnished Construction and Materials a statement certifying that the quality control procedures at the plant meet the requirements of the American Concrete Pipe Association (ACPA) or National Precast Concrete Association (NPCA) Compliance Audit and Certification Program or an alternate quality control program approved by Construction and Materials, a list of material used in fabrication, and 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 [~~http~~://www.modot.~~mo.gov~~/~~business~~/~~materials/pdf/vol_1/FS1026T1.pdf~~ Qualified Fabricators of Reinforced Concrete Culvert Pipe].		A list of those manufacturers who have filed acceptable documents is shown in [https://www.modot.org/media/486 Qualified Fabricators of Reinforced Concrete Culvert Pipe].

	If the manufacturer is found falsifying documentation, Construction and Materials is to be notified immediately for removal of that manufacturer or plant from the approved list.		If the manufacturer is found falsifying documentation, Construction and Materials is to be notified immediately for removal of that manufacturer or plant from the approved list.

Smithk: updated link

2018-10-12T20:19:47Z

updated link

← Older revision		Revision as of 15:19, 12 October 2018
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	\|'''MGS Information'''		\|'''MGS Information'''
	\|-		\|-
	\|[~~http~~://www.modot.~~mo.gov/business/materials/pdf~~/mgs~~/MGSINDEX.pdf~~ Current General Services Specifications (MGS) By Subject]		\|[https://www.modot.org/general-services-specifications-mgs-subject Current General Services Specifications (MGS) By Subject]
	\|}		\|}

Smithk: updated links

2016-06-15T16:08:03Z

updated links

Smithk: updated link

2013-08-22T16:27:00Z

updated link

← Older revision		Revision as of 11:27, 22 August 2013
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	Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with a SiteManager record (refer to		Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with a SiteManager record (refer to
	[~~http~~:~~//contribute.modot.mo.gov/business/materials/pdf/vol_3/AS3510~~.~~pdf Automation Section 3510~~]).		[[:Category:101 Standard Forms#Sample Record General Information\| Sample Record General Information]] [[image:bulldozer.jpg\|20px]]).

	Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:		Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:

Smithk: /* 1026.4 Report (Records) */ Per CM, updated Shipping Report Form links

2013-03-07T21:17:21Z

1026.4 Report (Records): Per CM, updated Shipping Report Form links

← Older revision		Revision as of 16:17, 7 March 2013
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	==1026.4 Report (Records)==		==1026.4 Report (Records)==

	The manufacturer is required to notify MoDOT of impending shipments by contacting Materials in the district responsible for their plant and providing the information required by the Pipe Shipping Report Form [~~[Media~~: ~~106~~.15.2.pdf\|General Section 17 Form 2]]. Construction and Materials will be notified by shippers [~~[Media~~: ~~106~~.15.1.pdf\|General Section 17 Form 1]] that are out-of-state and are not routinely visited by district Materials. This information will allow MoDOT to track the material, obtain samples, and perform Quality Assurance inspection as necessary.		The manufacturer is required to notify MoDOT of impending shipments by contacting Materials in the district responsible for their plant and providing the information required by the Pipe Shipping Report Form [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm2.pdf General Section 17 Form 2]. Construction and Materials will be notified by shippers [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm_Thermoplastic.pdf General Section 17 Form 1] that are out-of-state and are not routinely visited by district Materials. This information will allow MoDOT to track the material, obtain samples, and perform Quality Assurance inspection as necessary.

	A SiteManager sample record shall be created for each size and class of pipe in each shipment.		A SiteManager sample record shall be created for each size and class of pipe in each shipment.

Smithk: /* 1026.3 Special or Modified Designs */ Per Bridge, clarified the submittal process for special design pipe for MoDOT personnel, contractors and manufacturer.

2012-01-31T14:06:57Z

1026.3 Special or Modified Designs: Per Bridge, clarified the submittal process for special design pipe for MoDOT personnel, contractors and manufacturer.

@@ Line 202: / Line 202: @@
 ==1026.3 Special or Modified Designs==
-As permitted by [http://www.modot.mo.gov/business/standards_and_specs/Sec1026.pdf Sec 1026.3.6], a manufacturer may submit a special or modified design for approval. When a particular design is required to accommodate a d-load included in the plans, the manufacturer must submit a design for approval. The design is to be submitted by the manufacturer to the district that is responsible for the original inspection. The district will confirm that the design has been sealed by a Missouri registered professional engineer and that the parameters indicated are appropriate for the application. Designs not sealed are to be rejected. Special or modified designs will be accepted based on the pipe meeting the required minimum design strength D-load, in accordance with AASHTO M 242, sections 4 and 10. Special or modified designs have previously been accepted on the basis of three-edge bearing, compressive strength, and absorption tests, which will no longer be the case. Design and manufacture data shall be provided in accordance with AASHTO M 242, Sec 5, and materials for modified or special design shall be in accordance with AASHTO M 242, Sec 6. The manufacturer shall retain all applicable AASHTO specifications for use by the inspector.
+As permitted by [http://www.modot.mo.gov/business/standards_and_specs/Sec1026.pdf Sec 1026.3.6], a manufacturer may submit a special or modified design for approval.
 ==1026.4 Report (Records)==

Smithk: /* 1026.4 Report (Records) */ Per CM, updated link to AS 3510

2011-07-06T12:45:14Z

1026.4 Report (Records): Per CM, updated link to AS 3510

← Older revision		Revision as of 07:45, 6 July 2011
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	Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with a SiteManager record (refer to		Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with a SiteManager record (refer to
	[http://~~wwwi~~/~~intranet~~/cm/~~materials~~/vol_3/AS3510.pdf Automation Section 3510]).		[http://contribute.modot.mo.gov/business/materials/pdf/vol_3/AS3510.pdf Automation Section 3510]).

	Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:		Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:

← Older revision		Revision as of 08:46, 16 September 2021
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	Testing for compressive strength and the application of test results is described in the		Testing for compressive strength and the application of test results is described in the
	[[1026.7 Reinforced Concrete Pipe (RCP) Inspection Guide\|Reinforced Concrete Culvert Pipe (RCP) Inspection Guide]]. Occasional individual cylinders may fall below the design strength for some unknown reason. If the inspector feels an occasional individual cylinder of a paired set or a group of breaks is not representative of the process, it may be disregarded. However, not more than 10 percent of the cylinders tested shall fall below the design strength. In no case shall the strength of any cylinder tested fall below 80 percent of the design strength. Compressive tests may be performed in the field unless questionable results are being obtained in which case cylinders or cores are to be submitted to the Laboratory. ~~SiteManager~~ shall be used to identify cylinders and cores, to be submitted to the Laboratory. The inspector is to change the distribution and title block shown on the form, as required. Cores or cylinders submitted to the Central Laboratory shall be identified according to [[106.3 Samples, Tests and Cited Specifications#106.3.1.2.1 Identification\|EPG 106.3.1.2.1 Identification ]]. The exterior of the shipping carton shall have the following information listed: sample identification number, date of pour, cement factor (may be theoretical), cylinder numbers and any special instructions.		[[1026.7 Reinforced Concrete Pipe (RCP) Inspection Guide\|Reinforced Concrete Culvert Pipe (RCP) Inspection Guide]]. Occasional individual cylinders may fall below the design strength for some unknown reason. If the inspector feels an occasional individual cylinder of a paired set or a group of breaks is not representative of the process, it may be disregarded. However, not more than 10 percent of the cylinders tested shall fall below the design strength. In no case shall the strength of any cylinder tested fall below 80 percent of the design strength. Compressive tests may be performed in the field unless questionable results are being obtained in which case cylinders or cores are to be submitted to the Laboratory. AASHTOWARE (AWP) shall be used to identify cylinders and cores, to be submitted to the Laboratory. The inspector is to change the distribution and title block shown on the form, as required. Cores or cylinders submitted to the Central Laboratory shall be identified according to [[106.3 Samples, Tests and Cited Specifications#106.3.1.2.1 Identification\|EPG 106.3.1.2.1 Identification ]]. The exterior of the shipping carton shall have the following information listed: sample identification number, date of pour, cement factor (may be theoretical), cylinder numbers and any special instructions.

	====1026.2.5.3 Absorption Test====		====1026.2.5.3 Absorption Test====
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	The manufacturer is required to notify MoDOT of impending shipments by contacting Materials in the district responsible for their plant and providing the information required by the Pipe Shipping Report Form [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm2.pdf General Section 17 Form 2]. Construction and Materials will be notified by shippers [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm_Thermoplastic.pdf General Section 17 Form 1] that are out-of-state and are not routinely visited by district Materials. This information will allow MoDOT to track the material, obtain samples, and perform Quality Assurance inspection as necessary.		The manufacturer is required to notify MoDOT of impending shipments by contacting Materials in the district responsible for their plant and providing the information required by the Pipe Shipping Report Form [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm2.pdf General Section 17 Form 2]. Construction and Materials will be notified by shippers [http://www.modot.org/business/contractor_resources/documents/PipeShippingReportForm_Thermoplastic.pdf General Section 17 Form 1] that are out-of-state and are not routinely visited by district Materials. This information will allow MoDOT to track the material, obtain samples, and perform Quality Assurance inspection as necessary.

	~~A SiteManager~~ sample record shall be created for each size and class of pipe in each shipment.		An AWP sample record shall be created for each size and class of pipe in each shipment.

	Each ~~SiteManager~~ sample record will be created by the district responsible for the manufacturer. Construction and Materials will create records for pipe shipped by out-of-state manufacturers not routinely visited by district Materials.		Each AWP sample record will be created by the district responsible for the manufacturer. Construction and Materials will create records for pipe shipped by out-of-state manufacturers not routinely visited by district Materials.

	Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with ~~a SiteManager record~~ (~~refer to~~		Acceptance of each component of reinforced concrete pipe including fine and coarse aggregate, cement, fly ash, and steel shall be documented with an AASHTOWARE Project (AWP) in accordance with [[:Category:101 Standard Forms #Sample Record, General\|AWP MA Sample Record, General]].
	[[:Category:101 Standard Forms#Sample Record General ~~Information~~\| Sample Record General ~~Information]] [[image:bulldozer.jpg\|20px~~]]).

	Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:		Results of three-edge bearing tests are to be reported on a form similar to that shown in [[:category: 1026 Reinforced Concrete Culvert Pipe#1026.6.1 Report of Tests on Concrete Pipe\|EPG 1026.6.1 Report of Tests on Concrete Pipe]] . The district shall provide its own forms. Distribution of this form is to be as follows:
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	:District Construction and Materials Engineer (fabricating district).		:District Construction and Materials Engineer (fabricating district).

	Results of field determination of compressive strength (cylinders or cores) shall be reported through ~~SiteManager~~.		Results of field determination of compressive strength (cylinders or cores) shall be reported through AWP.

	All pipe is to be inspected at the source and reported to the project through ~~SiteManager~~. Acceptable pipe is to be reported to the project as soon as possible. Pipe quantity shall be shown in feet. End sections shall be shown as quantity each. The length of barrel of the end sections shall be included in the remarks and shall not be counted toward the materials summary unless the length contributed is necessary to eliminate a significant summary deficiency. Rejected pipe is to be reported as "General" rather than a project and the report should contain a brief statement as to the causes of rejection. When shipments of inspected pipe are made to another producing plant, all pipe shall be reported as "General" to the District involved, as soon as possible. The intermediate district shall then be responsible for the reporting to the project.		All pipe is to be inspected at the source and reported to the project through AWP. Acceptable pipe is to be reported to the project as soon as possible. Pipe quantity shall be shown in feet. End sections shall be shown as quantity each. The length of barrel of the end sections shall be included in the remarks and shall not be counted toward the materials summary unless the length contributed is necessary to eliminate a significant summary deficiency. Rejected pipe is to be reported as "General" rather than a project and the report should contain a brief statement as to the causes of rejection. When shipments of inspected pipe are made to another producing plant, all pipe shall be reported as "General" to the District involved, as soon as possible. The intermediate district shall then be responsible for the reporting to the project.

	Rubber gasket joint materials will be from a PAL supplier and will be reported through ~~SiteManager~~. They may be included on the same sample record as accepted concrete pipe. The pipe manufacturer shall report receipt of gasket material using the PAL receiver form and shall retain a copy of the certification for a period of 2 years.		Rubber gasket joint materials will be from a PAL supplier and will be reported through AWP. They may be included on the same sample record as accepted concrete pipe. The pipe manufacturer shall report receipt of gasket material using the PAL receiver form and shall retain a copy of the certification for a period of 2 years.

	==1026.5 Tables==		==1026.5 Tables==

← Older revision		Revision as of 11:08, 15 June 2016
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	\|}		\|}

	This article establishes procedures for inspecting reinforced concrete pipe and the approval of modified or special designs for reinforced concrete pipe. Refer to [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026] for MoDOT’s specifications. The [[1026.7 Reinforced Concrete Pipe (RCP) Inspection Guide\|Reinforced Concrete Pipe (RCP) Inspection Guide]] and [[1026.8 Laboratory Testing Guidelines for Sec 1026\|Laboratory Testing Guidelines for Sec 1026]] are also available.		This article establishes procedures for inspecting reinforced concrete pipe and the approval of modified or special designs for reinforced concrete pipe. Refer to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026] for MoDOT’s specifications. The [[1026.7 Reinforced Concrete Pipe (RCP) Inspection Guide\|Reinforced Concrete Pipe (RCP) Inspection Guide]] and [[1026.8 Laboratory Testing Guidelines for Sec 1026\|Laboratory Testing Guidelines for Sec 1026]] are also available.

	==1026.1 Apparatus==		==1026.1 Apparatus==
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	===1026.2.1 Reinforced Concrete Culvert Storm Drain and Sewer Pipe===		===1026.2.1 Reinforced Concrete Culvert Storm Drain and Sewer Pipe===
	Pipe manufactured according to [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026] shall be of five classes identified as Class I, Class II, Class III, Class IV and Class V. The corresponding design requirements are specified in Tables 1 through 5 of AASHTO M 170. Two separate and alternate basis of acceptance of concrete pipe are allowed by the specifications. Method No. 1 requires a three-edge bearing test, approval of materials incorporated into the pipe, absorption tests and visual examination of the finished pipe. Method No. 2 requires approval of materials incorporated into the pipe, compressive tests on cores or cylinders, absorption tests and inspection of the finished pipe including quantity and placement of reinforcement. These two alternate methods are the means of inspection for acceptance; however, all pipe shall be in accordance with Sec 1026. For instance, concrete cylinders may be made and tested to verify concrete design compressive strength even though Method No. 1 is being used as a basis for acceptance.		Pipe manufactured according to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026] shall be of five classes identified as Class I, Class II, Class III, Class IV and Class V. The corresponding design requirements are specified in Tables 1 through 5 of AASHTO M 170. Two separate and alternate basis of acceptance of concrete pipe are allowed by the specifications. Method No. 1 requires a three-edge bearing test, approval of materials incorporated into the pipe, absorption tests and visual examination of the finished pipe. Method No. 2 requires approval of materials incorporated into the pipe, compressive tests on cores or cylinders, absorption tests and inspection of the finished pipe including quantity and placement of reinforcement. These two alternate methods are the means of inspection for acceptance; however, all pipe shall be in accordance with Sec 1026. For instance, concrete cylinders may be made and tested to verify concrete design compressive strength even though Method No. 1 is being used as a basis for acceptance.
	{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="right"		{\|style="padding: 0.3em; margin-left:15px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#ffddcc" width="210px" align="right"
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	====1026.2.2.1 Fine and Coarse Aggregate====		====1026.2.2.1 Fine and Coarse Aggregate====
	Fine and coarse aggregate shall be in accordance with [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1005~~.pdf Sec 1005], except that requirements for gradation and percent passing the No. 200 (75 μm) sieve shall not apply.		Fine and coarse aggregate shall be in accordance with [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1005], except that requirements for gradation and percent passing the No. 200 (75 μm) sieve shall not apply.

	Fine aggregate and coarse aggregate are defined as:		Fine aggregate and coarse aggregate are defined as:
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	====1026.2.2.2 Cement====		====1026.2.2.2 Cement====
	Cement shall be in accordance with [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1019~~.pdf Sec 1019]. Approved Class C or F fly ash may be used to replace a maximum of 25 percent of Type I or II cement on an equivalent weight (mass) basis. The district Construction and Materials Engineer is to establish files to reflect that cementitious materials used in the manufacture of concrete pipe for MoDOT projects were properly inspected.		Cement shall be in accordance with [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1019]. Approved Class C or F fly ash may be used to replace a maximum of 25 percent of Type I or II cement on an equivalent weight (mass) basis. The district Construction and Materials Engineer is to establish files to reflect that cementitious materials used in the manufacture of concrete pipe for MoDOT projects were properly inspected.

	The pipe manufacturer is required to maintain a file of bills of lading or delivery receipts of cementitious materials, showing the certification statements required, which are to be readily available to the inspector. Samples of cementitious materials shall be taken as shown below. If a pipe manufacturer is using more than one brand of cement or flyash, the samples should be taken alternately to cover different brands. Samples shall be placed in a canvas bag containing a plastic liner and shipped to the Central Laboratory. The sample is to be assigned a sample ID number and the associated sample record shall include the silo, truck or car number, manufacturer, and other pertinent information. The sample shall be submitted as "General".		The pipe manufacturer is required to maintain a file of bills of lading or delivery receipts of cementitious materials, showing the certification statements required, which are to be readily available to the inspector. Samples of cementitious materials shall be taken as shown below. If a pipe manufacturer is using more than one brand of cement or flyash, the samples should be taken alternately to cover different brands. Samples shall be placed in a canvas bag containing a plastic liner and shipped to the Central Laboratory. The sample is to be assigned a sample ID number and the associated sample record shall include the silo, truck or car number, manufacturer, and other pertinent information. The sample shall be submitted as "General".
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	Reinforcing steel for use in the manufacture of concrete pipe shall be in accordance with Sec 1036 and will be accepted according to [[106.1 Source of Supply and Quality Requirements#Materials\|EPG 106.1 Source of Supply and Quality Requirements]]. The pipe manufacturer shall use only PAL material. The material shall be reported by the pipe manufacturer using the PAL receiver form, [http://www.modot.mo.gov/business/materials/pdf/vol_1/GS013F2.pdf GS-13 Form 2]. The pipe manufacturer shall retain certification and mill test reports for 1 year and make them available to the inspector when requested.		Reinforcing steel for use in the manufacture of concrete pipe shall be in accordance with Sec 1036 and will be accepted according to [[106.1 Source of Supply and Quality Requirements#Materials\|EPG 106.1 Source of Supply and Quality Requirements]]. The pipe manufacturer shall use only PAL material. The material shall be reported by the pipe manufacturer using the PAL receiver form, [http://www.modot.mo.gov/business/materials/pdf/vol_1/GS013F2.pdf GS-13 Form 2]. The pipe manufacturer shall retain certification and mill test reports for 1 year and make them available to the inspector when requested.

	Note that reinforcement of pipe wall may be either that specified under Circular Reinforcement or as under Elliptical Reinforcement. If the latter, special pipe marking is also required by [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026.3.10.2].		Note that reinforcement of pipe wall may be either that specified under Circular Reinforcement or as under Elliptical Reinforcement. If the latter, special pipe marking is also required by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026.3.10.2].

	===1026.2.3 Identification Marking===		===1026.2.3 Identification Marking===
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	====1026.2.4.3 Reinforcing Steel====		====1026.2.4.3 Reinforcing Steel====
	When samples are obtained for testing, they shall be taken as described in [[:category: 1036 Reinforcing Steel for Concrete\|EPG 1036 Reinforcing Steel for Concrete]], except for Welded Wire Fabric. Welded wire to be sampled for Laboratory testing is to be field measured for size prior to sampling. Each circumferential wire across the width of the fabric is to be measured. The manufacturer may use over-sized wire in the fabrication of welded wire fabric, but not under-sized wire. The size differential shall not exceed one "W" size increment on sizes W8 and smaller and two "W" size increments on sizes larger than W8. "W" sizes referred to are those shown in AASHTO M32. In all cases where over-sizing exists, the fabric shall be identified and used as that originally ordered or offered for use. If the wire does not meet the specification requirements, it is not to be sampled and submitted to the Laboratory. It is to be rejected in the field unless measurements are such that Laboratory verification is needed. When verification is needed, it should be so stated on the identification sheet accompanying the sample. Samples of welded wire fabric representing each lot shall consist of two pieces of longitudinal wire not less than 24 in. (600 mm) in length. Samples of the transverse wires are not required. A lot of welded wire fabric is 25,000 sq. ft. (2300 sq.meter) or fraction thereof of one style of fabric with the same size wires and spacing. Regardless of the basis of acceptance of reinforcing steel for concrete pipe, it shall be field inspected for diameter and spacing of circumferential steel. The inspector is to examine laps and welds and, when required by [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026], a representative sample shall be taken for testing of welded laps or butt welds. Such a sample shall consist of two pieces, each with a clear length of 12 in. (300 mm) either side of the weld and is to be taken at least once a year for each size of steel welded and each length of lap being used.		When samples are obtained for testing, they shall be taken as described in [[:category: 1036 Reinforcing Steel for Concrete\|EPG 1036 Reinforcing Steel for Concrete]], except for Welded Wire Fabric. Welded wire to be sampled for Laboratory testing is to be field measured for size prior to sampling. Each circumferential wire across the width of the fabric is to be measured. The manufacturer may use over-sized wire in the fabrication of welded wire fabric, but not under-sized wire. The size differential shall not exceed one "W" size increment on sizes W8 and smaller and two "W" size increments on sizes larger than W8. "W" sizes referred to are those shown in AASHTO M32. In all cases where over-sizing exists, the fabric shall be identified and used as that originally ordered or offered for use. If the wire does not meet the specification requirements, it is not to be sampled and submitted to the Laboratory. It is to be rejected in the field unless measurements are such that Laboratory verification is needed. When verification is needed, it should be so stated on the identification sheet accompanying the sample. Samples of welded wire fabric representing each lot shall consist of two pieces of longitudinal wire not less than 24 in. (600 mm) in length. Samples of the transverse wires are not required. A lot of welded wire fabric is 25,000 sq. ft. (2300 sq.meter) or fraction thereof of one style of fabric with the same size wires and spacing. Regardless of the basis of acceptance of reinforcing steel for concrete pipe, it shall be field inspected for diameter and spacing of circumferential steel. The inspector is to examine laps and welds and, when required by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026], a representative sample shall be taken for testing of welded laps or butt welds. Such a sample shall consist of two pieces, each with a clear length of 12 in. (300 mm) either side of the weld and is to be taken at least once a year for each size of steel welded and each length of lap being used.

	===1026.2.5 Field Inspection and Testing for Acceptance===		===1026.2.5 Field Inspection and Testing for Acceptance===
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	The diameter, wall thickness, compressive strength of the concrete and the quantity of circumferential reinforcement shall be as prescribed in Tables 1 through 5 of AASHTO M 170 for pipe classes I to V.		The diameter, wall thickness, compressive strength of the concrete and the quantity of circumferential reinforcement shall be as prescribed in Tables 1 through 5 of AASHTO M 170 for pipe classes I to V.

	Refer to [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026.6] for Special or Modified Designs.		Refer to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026.6] for Special or Modified Designs.

	====1026.2.6.2 Placing Reinforcement====		====1026.2.6.2 Placing Reinforcement====
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	[[:category:1026 Reinforced Concrete Culvert Pipe#1026.2.6.3.2.1 Steam Curing\|EPG 1026.2.6.3.2.1 Steam Curing]] and EPG 1026.2.6.3.2.2, Water Curing as long as the required concrete compressive strength is attained.		[[:category:1026 Reinforced Concrete Culvert Pipe#1026.2.6.3.2.1 Steam Curing\|EPG 1026.2.6.3.2.1 Steam Curing]] and EPG 1026.2.6.3.2.2, Water Curing as long as the required concrete compressive strength is attained.

	'''Curing Membrane.''' A curing membrane in accordance with [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1055~~.pdf Sec 1055] may be applied , and if used, shall be left intact until the strength requirements are met.		'''Curing Membrane.''' A curing membrane in accordance with [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1055] may be applied , and if used, shall be left intact until the strength requirements are met.

	====1026.2.6.4 Permissible Variations====		====1026.2.6.4 Permissible Variations====
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	==1026.3 Special or Modified Designs==		==1026.3 Special or Modified Designs==
	As permitted by [http://www.modot.~~mo.gov~~/business/standards_and_specs/~~Sec1026~~.pdf Sec 1026.3.6], a manufacturer may submit a special or modified design for approval.		As permitted by [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1026.3.6], a manufacturer may submit a special or modified design for approval.

	Designs are to be submitted by the manufacturer to the district that is responsible for the original inspection. The district will confirm designs have been signed and sealed by a Missouri registered professional engineer and that parameters indicated are appropriate for the application. Designs not signed and sealed are to be rejected.		Designs are to be submitted by the manufacturer to the district that is responsible for the original inspection. The district will confirm designs have been signed and sealed by a Missouri registered professional engineer and that parameters indicated are appropriate for the application. Designs not signed and sealed are to be rejected.