Specification Changes Pub 4082011 Changes 1 2 District

Specification Changes Pub 408/2011 Changes 1 & 2 District 8 -0 Winter Construction School February 23 rd, 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 1 st day of abutting pavement Initial Edition Effective April 1, 2011 www. dot. state. pa. us 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 www. dot. state. pa. us

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 www. dot. state. pa. us

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 www. dot. state. pa. us 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 www. dot. state. pa. us 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 www. dot. state. pa. us 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 www. dot. state. pa. us 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-of. Way Change 1 Effective October 7, 2011 www. dot. state. pa. us 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 www. dot. state. pa. us 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 www. dot. state. pa. us 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-719 M Change 1 Effective October 7, 2011 www. dot. state. pa. us 11

BC-719 Temporary Concrete Barrier, Structure Mounted October 2010 Change 1 Effective October 7, 2011 www. dot. state. pa. us 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 www. dot. state. pa. us 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 www. dot. state. pa. us

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 www. dot. state. pa. us

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 www. dot. state. pa. us

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 www. dot. state. pa. us

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 www. dot. state. pa. us

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 50 F • Curing Days 8 through 14 – Don’t count it as a curing day if temperature drops below 40 F Change 2 Effective April 6, 2012 www. dot. state. pa. us

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 www. dot. state. pa. us

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 www. dot. state. pa. us