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Specification Changes Pub 408/2011 Changes 1 & 2. District 8-0 Winter Construction School February 23rd, 2012 Linda Atkinson Bureau of Project Delivery (BOPD) Innovation & Support Services Division (ISSD) Construction Quality Assurance Section (CQAS). - PowerPoint PPT Presentation
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Specification ChangesPub 408/2011 Changes 1 & 2
District 8-0 Winter Construction SchoolFebruary 23rd, 2012
Linda AtkinsonBureau of Project Delivery (BOPD)
Innovation & Support Services Division (ISSD)Construction Quality Assurance Section (CQAS)
www.dot.state.pa.us
405 Bit. Pavement Longitudinal Joint Density408/2011 Initial Edition
• New Section– This new section is for Incentive/Disincentive of
bituminous pavement longitudinal joint densities• RPS projects• Standard paving projects on the NHS• Requires separate “Dollar” item be established• Requires separate Lots be established for the joint
density acceptanceLot =12,500 lf 5 sublots of 2,500 lf
• Requires a Quality Control Strip on 1st day of abutting pavement
Initial EditionEffective April 1, 2011 2
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PTM 729 and PTM 746
• PTM 729-Sampling Roadway Bituminous Concrete Mixtures (Cores)– Includes examples of the longitudinal joint core– Security of Samples
• PTM 746-Sampling Bituminous Paving Mixtures (Loose Box)
– Security of Samples
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601 Pipe Culverts408/2011 Initial Edition
• 601.3(n) Final Inspection of Pipes Except 100 Year Design Life Pipes– This Subsection provides inspection requirements for
pipes other than those having 100 year design life• 601.3(o) Final Inspection of 100 Year Design Life Pipes
– This Subsection provides inspection requirements for pipes with 100 year design life
• 601.3(p) Remediation– Provides remediation requirements resulting from deficiencies
found during inspection• PTM 450
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105 Control of Work408/2011 Change 1
• 105.17 Acceptance of Construction Loadings and Material Stockpiling on Bridges – New Subsection
– Requires PE submission(s) for staged equipment and material stockpiles to be used on bridges
– Submissions to be accepted prior to work
• Individual Material Stockpiles • Multiple Material Stockpiles• Combination of Material and Equipment• Crane Placement
Change 1Effective October 7, 2011 4
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1050 Steel Bridge Superstructure 1080 Prestressed Concrete Bridge Superstructure
• 1050.3(c)3 Erection Procedure• 1080.3(c) Erection
– Revised to require a PA Professional Engineer to sign and seal erection drawings
• New Quality Assurance Review Area– COR 105.17 Bridge Construction Loadings– 1 per District per year
Change 1Effective October 7, 2011 5
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350 Subbase408/2011 Change 1
• 350.3(b) General
– Added a requirement to submit a Subbase Delivery Plan prior to placement operations
• Required for quantities greater than 1,500 tons
– Equipment– Delivery– Placement Operations
Change 1Effective October 7, 2011 6
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483 Micro-surfacing408/2011 Change 1
• New Section
– This new section is for Polymer-Modified Emulsified Asphalt Paving System (Micro-surfacing)
• To fill ruts and/or resurface existing pavements• Includes mix design, equipment, surface preparation,
placement, and sampling/testing requirements
Change 1Effective October 7, 2011 7
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514 Diamond Grinding of Concrete Pavement 408/2011 Change 1
• 514.3(b) Grinding
– Prohibits grinding within 2 feet of existing curb, bridge barrier or roadway barrier
– Requires newly sealed longitudinal or transverse joints placed under current contract damaged by diamond grinding to be replaced at no additional cost to Department
– Prohibits slurry to be wasted in Department Right-of-Way
Change 1Effective October 7, 2011 8
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514 Diamond Grinding of Concrete Pavement 408/2011 Change 1
• 514.3(e) Concrete Pavement Rehabilitation
– Added this new Subsection which requires all concrete pavement rehabilitation work to be completed prior to diamond grinding operations
– Requires ride quality evaluation in accordance with Section 507
• 70 in/mile for posted speeds >45 mph• 90 in/mile for posted speeds ≤45 mph
Change 1Effective October 7, 2011 9
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521 Transverse Joint Cleaning and Sealing408/2011 Change 1
• 521.3 Construction
– Clarified the need to completely remove all existing joint sealing material neoprene compression seals, to provide a clean, newly exposed concrete surface
Change 1Effective October 7, 2011 10
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643 Temporary Concrete Barrier, Structure Mounted408/2011 Change 1
• 643.1 Description– Added the use of pin connected drop-pin anchors
• 643.2(d) Pin Connected Drop-Pin Anchor– New Subsection, material requirements and
components for drop-pin anchor, connection pin, and plate washer
• 643.3(c) Pin Connected Drop-Pin Anchor– New Subsection, installation as per BC-719M
Change 1Effective October 7, 2011 11
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BC-719 Temporary Concrete Barrier, Structure MountedOctober 2010
Change 1Effective October 7, 2011 12
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1042 Latex Modified Mortar Or Concrete Wearing Surface 408/2011 Change 1
• 1042.3(f)3.b Acceptance Testing
– Requirement changed from 7 days to 5 days at the same 3000 psi to have the number of days for compressive strength match what is in the Physical Properties Table in 1042.2(f)
Change 1Effective October 7, 2011 13
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409 Construction of Plant-Mixed HMA Courses408/2011 Change 2
• 409.3(h)2.b Mixture Acceptance Samples– Added language to allow a maximum of one loose box
sample per sublot for quality control mixture composition testing
– Prohibits any loose box, core or any other samples to be obtained by the Contractor after mixture acceptance samples are obtained
• 409.3(j)4.c Density Acceptance Samples– Added language to allow a maximum of one core per
sublot for quality control density testing– Prohibits any core or any other samples to be obtained by
the Contractor after density acceptance samples are obtained
Change 2Effective April 6, 2012
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515 Sawing and Sealing of Bituminous Overlays408/2011 Change 2
• 515.3(a) General– Clarified the need to locate and reference each end of
existing transverse joints– Quality Control Plan to be submitted at least 21 days
prior to referencing operations– Added a ± 1” tolerance
• 515.3(b) Sawing– Requires sawing when the pavement temperature has
cooled below 140 F and within 7 days of wearing course
– Added a ± 1” tolerance– Defective if tolerance not met
Change 2Effective April 6, 2012
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704 Cement Concrete408/2011 Change 2
• Table A– Added Class AAAP for Bridge Decks
• Lowered the Minimum 7-Day Mix Design Strength requirement from 3,600 to 3,000 psi
• Has a 28-Day Minimum Mix Design Strength requirement of 4,000 psi
– Note #4 eliminates the use of class AAA for Concrete Decks
• 704.1(f)2 Mixing Conditions – During Hot Weather– Added accelerated concrete placement temperatures,
at time of placement, to be 50 to 100 F
Change 2Effective April 6, 2012
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706 Concrete Bonding Compound408/2011 Change 2
• 706.1(a)1 General – Application/Operation Specific Types
– Added Type V for use in load bearing applications where bonding fresh concrete to hardened concrete is conducted
• 706.2 Non-Epoxy Bonding Compound
– Changed title to Other Bonding Compound
Change 2Effective April 6, 2012
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1001 Cement Concrete Structures 408/2011 Change 2
• 1001.3(m)1 Connections of Existing and New Concrete, Terms– Added the definition for hardened concrete
• 1001.3(m)2 Connections of Existing and New Concrete, General– Non Load Bearing (Type 2)– Load Bearing (Type 5)
Change 2Effective April 6, 2012
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1001 Cement Concrete Structures408/2011 Change 2
• 1001.3(k)6 Placing and Finishing Concrete, Bridge Decks– Revised the 7-day wet cure to 14 days and removed
the white membrane cure requirement
• 1001.3(p) Curing and Protection of Concrete– Added for bridge decks:
• Curing Days 1 through 7 – Don’t count it as a curing day if temperature drops below 50F
• Curing Days 8 through 14 – Don’t count it as a curing day if temperature drops below 40F
Change 2Effective April 6, 2012
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1001 Cement Concrete Structures408/2011 Change 2
• 1001.3(q)1, Table A Removal of Falsework and Forms
– Added Class AAAP concrete with a minimum strength of 3000 psi and changed the AA requirement from 2730 psi to 2750 psi for removing falsework that supports something (arches, box culverts, pier caps, etc)
Change 2Effective April 6, 2012
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711 Concrete Curing Material & Admixtures408/2011 Change 2
• 711.3(c) Concrete Admixtures – Shipment
– Added “bags” in conjunction with drums, in bulk etc…
• 711.3(g) Concrete Admixtures – Fibers for Plastic Shrinkage Cracking
– New Subsection to include Fibers for Plastic shrinkage cracking
Change 2Effective April 6, 2012
