Transcript Pub 408-2011 Spec Changes

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)
www.dot.state.pa.us
405 Bit. Pavement Longitudinal Joint Density
408/2011 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 acceptance
Lot =12,500 lf
5 sublots of 2,500 lf
• Requires a Quality Control Strip on 1st day of abutting
pavement
Initial Edition
Effective April 1, 2011
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2
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
3
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601 Pipe Culverts
408/2011 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 Work
408/2011 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 1
Effective October 7, 2011
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4
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 1
Effective October 7, 2011
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5
350 Subbase
408/2011 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 1
Effective October 7, 2011
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6
483 Micro-surfacing
408/2011 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 1
Effective October 7, 2011
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7
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-ofWay
Change 1
Effective October 7, 2011
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8
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 1
Effective October 7, 2011
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9
521 Transverse Joint Cleaning and Sealing
408/2011 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 1
Effective October 7, 2011
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10
643 Temporary Concrete Barrier, Structure Mounted
408/2011 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 1
Effective October 7, 2011
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11
BC-719 Temporary Concrete Barrier, Structure Mounted
October 2010
Change 1
Effective October 7, 2011
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12
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 1
Effective October 7, 2011
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13
409 Construction of Plant-Mixed HMA Courses
408/2011 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 2
Effective April 6, 2012
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515 Sawing and Sealing of Bituminous Overlays
408/2011 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 2
Effective April 6, 2012
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704 Cement Concrete
408/2011 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 2
Effective April 6, 2012
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706 Concrete Bonding Compound
408/2011 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 2
Effective 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 2
Effective April 6, 2012
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1001 Cement Concrete Structures
408/2011 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 2
Effective April 6, 2012
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1001 Cement Concrete Structures
408/2011 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 2
Effective April 6, 2012
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711 Concrete Curing Material & Admixtures
408/2011 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 2
Effective April 6, 2012
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