Category:401 Bituminous Base and Pavement - Revision history

Hoskir: /* 401.1.2 Plant Mix Bituminous Pavement (PMBP) */ updated per RR 3644

2023-04-19T14:24:59Z

401.1.2 Plant Mix Bituminous Pavement (PMBP): updated per RR 3644

← Older revision		Revision as of 09:24, 19 April 2023
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	===401.1.2 Plant Mix Bituminous Pavement (PMBP)===		===401.1.2 Plant Mix Bituminous Pavement (PMBP)===
	Use of mineral aggregate-gradation, BP-1, should be limited to a surface mixture for full-depth construction of minor road pavements, resurfacing or contract leveling projects. Guidance for using PMBP mixes are given in [[:category:450 Bituminous Pavement Design\|EPG 450 Bituminous Pavement Design]]. The thickness of the PMBP mixture should be ~~1 ¾~~ in. ~~(45 mm)~~ to 3 in~~. (75 mm)~~. It may also be used as an underlying lift when the PMBB cannot be used because of thickness limitations, i.e., total overlay thickness is ~~3 ¾~~ in. ~~[95 mm]~~ or less. Where it is desirable to eliminate edge drop off treatment, BP-1 may be used in lieu of the 4" ~~(100 mm)~~ PMBB. However, for normal applications, it is recommended to use 4 in. ~~(100 mm)~~ of PMBB. An SP125 mixture should not be used in lieu of a PMBP mixture, unless approved by the District Construction and Materials Engineer. An approved commercial mixture may be used in lieu of PMBP mixtures for minor roads with low traffic in accordance with guidance in [[Other Aspects of Pavement Design#Thickness Determination\|Thickness Determination]] for work that is considered temporary construction, primarily defined as work that is to be removed prior to completion of the contract, pavement that will become non-mainline pavement, or pavement that will not remain in MoDOT inventory. The Construction and Materials Division Pavement Team should be contacted to determine whether commercial mixture would be an appropriate substitution. After concurrence from the Pavement Team, the designer should note on the 2B sheets in the “Remarks” section where a commercial mixture may be substituted for a PMBP mixture and on the typical section.		Use of mineral aggregate-gradation, BP-1, should be limited to a surface mixture for full-depth construction of minor road pavements, resurfacing or contract leveling projects. Guidance for using PMBP mixes are given in [[:category:450 Bituminous Pavement Design\|EPG 450 Bituminous Pavement Design]]. The thickness of the PMBP mixture should be 2 in. to 3 in. It may also be used as an underlying lift when the PMBB cannot be used because of thickness limitations, i.e., total overlay thickness is 4 in. or less. Where it is desirable to eliminate edge drop off treatment, BP-1 may be used in lieu of the 4" PMBB. However, for normal applications, it is recommended to use 4 in. of PMBB. An SP125 mixture should not be used in lieu of a PMBP mixture, unless approved by the District Construction and Materials Engineer. An approved commercial mixture may be used in lieu of PMBP mixtures for minor roads with low traffic in accordance with guidance in [[Other Aspects of Pavement Design#Thickness Determination\|Thickness Determination]] for work that is considered temporary construction, primarily defined as work that is to be removed prior to completion of the contract, pavement that will become non-mainline pavement, or pavement that will not remain in MoDOT inventory. The Construction and Materials Division Pavement Team should be contacted to determine whether commercial mixture would be an appropriate substitution. After concurrence from the Pavement Team, the designer should note on the 2B sheets in the “Remarks” section where a commercial mixture may be substituted for a PMBP mixture and on the typical section.

	The designer may use any reasonable combination of lifts, but the normal lift thicknesses should be:		The designer may use any reasonable combination of lifts, but the normal lift thicknesses should be:

	*~~1 ¾~~ in. BP-1		*2 in. BP-1

	*~~1 ¾~~ in. BP-1 over 2 in. BP-1		*2 in. BP-1 over 2 in. BP-1

	*~~1 ¾~~ in. BP-1 over 3 in. or greater PMBB		*2 in. BP-1 over 3 in. or greater PMBB

	==401.2 Construction Inspection for Sec 401==		==401.2 Construction Inspection for Sec 401==

Hoskir: /* 401.2.7 Quality Control (Sec 401.8) */ updated per RR 3663

2023-04-19T14:09:37Z

401.2.7 Quality Control (Sec 401.8): updated per RR 3663

← Older revision		Revision as of 09:09, 19 April 2023
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	See Density Samples in [[460.6 Paving Operations\|Paving Operations]].		See Density Samples in [[460.6 Paving Operations\|Paving Operations]].

	A random number can be selected for each mat core or a random number can be selected for the first joint core and the remaining cores in the sample can be located by moving down the mat some distance. The distance between the joint cores should be equal. A mat core ~~sould~~ be taken for each ~~500~~ tons of production in order to determine acceptance of the ~~inplace~~ material. A joint core should be taken along with the mat core, particularly during the first quarter of the production. If no deficient joint cores are found, meaning all joint densities are found to be above 90%, in the first 25 percent of production the established rolling procedure may be used at the direction of the Resident Engineer in lieu of joint density tests provided no changes in the material, typical location or temperatures are made. The joint core shall be centered at an offset of 6 inches from the ~~longitutinal~~ joint, and be ~~taken~~ from the ~~same transverse cross section~~, ~~generally meaning~~ the same station or logmile, as the mat core. QA will determine the locations of all cores. QC will perform the testing on all cores. The specific gravity of the joint cores can be determined as a whole, or the specific gravity of each joint core can be determined and the results averaged. If there is any reason to suspect that density is not being achieved, the inspector should have more cores taken within these guidelines.		A random number can be selected for each mat core or a random number can be selected for the first joint core and the remaining cores in the sample can be located by moving down the mat some distance. The distance between the joint cores should be equal. A mat core should be taken for each 1000 tons of production in order to determine acceptance of the in-place material. A joint core should be taken along with the mat core, particularly during the first quarter of the production. If no deficient joint cores are found, meaning all joint densities are found to be above 90%, in the first 25 percent of production the established rolling procedure may be used at the direction of the Resident Engineer in lieu of joint density tests provided no changes in the material, typical location or temperatures are made. The joint core shall be centered at an offset of 6 inches from the longitudinal joint on the center line side and shall be centered at an offset of 12 inches from the longitudinal joint on the shoulder side. Also, the joint core shall be taken from the same station or logmile as the mat core. QA will determine the locations of all cores. QC will perform the testing on all cores. The specific gravity of the joint cores can be determined as a whole, or the specific gravity of each joint core can be determined and the results averaged. If there is any reason to suspect that density is not being achieved, the inspector should have more cores taken within these guidelines.

	'''Density Adjustment''' (Sec 401.8.5)		'''Density Adjustment''' (Sec 401.8.5)

Hoskir: /* 401.2.3 Job Mix Formula (Sec 401.4) */ updated per RR 3634

2023-02-09T13:47:09Z

401.2.3 Job Mix Formula (Sec 401.4): updated per RR 3634

← Older revision		Revision as of 08:47, 9 February 2023
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	'''Mixture Approval''' (Sec 401.4.3)		'''Mixture Approval''' (Sec 401.4.3)

	No mix shall be produced or placed by the contractor or accepted for use by an inspector without an approved JMF. Construction and Materials will give written approval. In some extreme cases, approval may be verbal with written approval to follow. The cold feed and hot feed settings may be adjusted by the contractor in the field, provided that the mixture is checked for compliance with;		No mix shall be produced or placed by the contractor or accepted for use by an inspector without an approved JMF. Construction and Materials will give written approval. District Materials may approve mix transfers if the mix quantity per project is 250 tons or less provided the mix type and contract binder grade match what’s listed on the plan sheets or change order. In some extreme cases, approval may be verbal with written approval to follow. The cold feed and hot feed settings may be adjusted by the contractor in the field, provided that the mixture is checked for compliance with;

	:1) Sec 401.2.2 concerning the contribution from recycled materials,		:1) Sec 401.2.2 concerning the contribution from recycled materials,

Hoskir: /* 401.2.6 Construction Requirements (Sec 401.7) */ updated Joints per RR 3580

2023-01-17T17:03:26Z

401.2.6 Construction Requirements (Sec 401.7): updated Joints per RR 3580

← Older revision		Revision as of 12:03, 17 January 2023
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	See Transverse Joints and Longitudinal Joints in [[460.6 Paving Operations\|Paving Operations]].		See Transverse Joints and Longitudinal Joints in [[460.6 Paving Operations\|Paving Operations]].

	The minimum density requirement of all traveled way pavement within 8 in. of a longitudinal joint is 90.0%. This includes the pavement on the traveled way side of a shoulder joint. Once the contractor establishes a roller pattern that produces the required density, testing may be waived if no deficient cores are found in the first 25 percent of production with approval from the RE. Density testing will again be required at any time that changes in the material, mix temperatures, or roller pattern are made. Pay adjustments due to longitudinal joint density apply to the production period from which the cores are obtained and to the full width of the lane.		The minimum density requirement of all traveled way pavement within 8 in. of an unconfined longitudinal joint is 90.0%. This includes the pavement on the traveled way side of an unconfined shoulder joint. Once the contractor establishes a roller pattern that produces the required density, testing may be waived if no deficient cores are found in the first 25 percent of production with approval from the RE. Density testing will again be required at any time that changes in the material, mix temperatures, or roller pattern are made. Pay adjustments due to longitudinal joint density apply to the production period from which the cores are obtained and to the full width of the lane.

	''''Compaction''' (Sec 401.7.8)		''''Compaction''' (Sec 401.7.8)

Hallej1 at 18:10, 18 August 2022

2022-08-18T18:10:23Z

← Older revision		Revision as of 13:10, 18 August 2022
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	\|'''AC Price Index Adjustments'''		\|'''AC Price Index Adjustments'''
	\|-		\|-
	\|[~~[media~~:~~403 Guidance for Asphalt Cement Price Index Adjustments May 22 2020~~.docx\|Guidance for Asphalt Cement Price Index Adjustments]]		\|[https://epg.modot.org/forms/CM/403_Guidance_for_Asphalt_Cement_Price_Index_Adjustments.docx Guidance for Asphalt Cement Price Index Adjustments]
	\|-		\|-
	\|'''Related Information'''		\|'''Related Information'''

Smithk: Per IS, updated CM link

2022-05-06T13:48:06Z

Per IS, updated CM link

← Older revision		Revision as of 08:48, 6 May 2022
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	\|'''Related Information'''		\|'''Related Information'''
	\|-		\|-
	\|[~~http~~://sp/sites/CM/FormServerTemplates/104_7_Maintenance.docx Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]		\|[https://modotgov.sharepoint.com/sites/cm/FormServerTemplates/104_7_Maintenance.docx Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]
	\|}		\|}
	==401.1 Design==		==401.1 Design==

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

2021-10-01T13:43:58Z

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

← Older revision		Revision as of 08:43, 1 October 2021
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	===401.4.2 Sample Record===		===401.4.2 Sample Record===
	The sample record shall be completed in ~~SiteManager~~, as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec]. Test results shall be reported on the appropriate templates under the Tests tab.		The sample record shall be completed in AASHTOWARE Project (AWP), as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec]. Test results shall be reported on the appropriate templates under the Tests tab.

	==401.5 Laboratory Procedures for Sec 401 Plant Mix Bituminous Base==		==401.5 Laboratory Procedures for Sec 401 Plant Mix Bituminous Base==
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	===401.5.3 Sample Record===		===401.5.3 Sample Record===
	====401.5.3.1 Trial Mixtures====		====401.5.3.1 Trial Mixtures====
	The sample record shall be completed in ~~SiteManager~~, as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec], and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in [[106.20 Reporting\|EPG 106.20 Reporting]], are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab.		The sample record shall be completed in AWP, as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec], and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in [[106.20 Reporting\|EPG 106.20 Reporting]], are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab.

	====401.5.3.2 Field Compacted Density Samples====		====401.5.3.2 Field Compacted Density Samples====
	The sample record shall be completed in ~~SiteManager~~, as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec], and shall include a notation in the remarks, "Material submitted for the determinations indicated". Test results shall be reported on the appropriate templates under the Tests tab.		The sample record shall be completed in AWP, as described in [http://contribute.modot.mo.gov/business/materials/pdf/vol_3/MMV3CONT.pdf Automation Sec], and shall include a notation in the remarks, "Material submitted for the determinations indicated". Test results shall be reported on the appropriate templates under the Tests tab.

Smithk: corrected link

2020-07-15T18:57:27Z

corrected link

← Older revision		Revision as of 13:57, 15 July 2020
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	\|-		\|-
	\|[[media:403 Guidance for Asphalt Cement Price Index Adjustments May 22 2020.docx\|Guidance for Asphalt Cement Price Index Adjustments]]		\|[[media:403 Guidance for Asphalt Cement Price Index Adjustments May 22 2020.docx\|Guidance for Asphalt Cement Price Index Adjustments]]
			\|-
			\|'''Related Information'''
			\|-
			\|[http://sp/sites/CM/FormServerTemplates/104_7_Maintenance.docx Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]
	\|}		\|}
	==401.1 Design==		==401.1 Design==

Smithk: link intentionally, temporarily broken

2020-07-15T18:20:05Z

link intentionally, temporarily broken

← Older revision		Revision as of 13:20, 15 July 2020
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	\|-		\|-
	\|[[media:403 Guidance for Asphalt Cement Price Index Adjustments May 22 2020.docx\|Guidance for Asphalt Cement Price Index Adjustments]]		\|[[media:403 Guidance for Asphalt Cement Price Index Adjustments May 22 2020.docx\|Guidance for Asphalt Cement Price Index Adjustments]]
	\|-
	~~\|'''Related Information'''~~
	\|-
	~~\|[http://epg.modot.mo.gov/forms/CM/104_7_Maintenance.docx Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]~~
	\|}		\|}
	==401.1 Design==		==401.1 Design==

Smithk at 17:21, 15 July 2020

2020-07-15T17:21:59Z

← Older revision		Revision as of 12:21, 15 July 2020
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	\|'''Related Information'''		\|'''Related Information'''
	\|-		\|-
	\|[~~[media~~:~~104~~.~~7 Maintenance~~.docx\|Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]]		\|[http://epg.modot.mo.gov/forms/CM/104_7_Maintenance.docx Guidance for Administering and Planning Pavement Maintenance Responsibilities during Construction]
	\|}		\|}
	==401.1 Design==		==401.1 Design==