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Structural PCC Overlays (v1) Pavement Interactive

A bonded PCC overlay consists of a relatively thin PCC layer (typically less than 100 mm (4 inches) thick) over an existing rigid pavement. The overlay is intentionally bonded to the existing pavement with a PCC slurry or grout in order to create a composite pavement section (McGhee, 1994). Bonded overlays are generally used to add structural

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ITEM 502.65960005 CRACKING AND SEATING EXISTING PCC

ITEM 502.65960005 CRACKING AND SEATING EXISTING PCC PAVEMENT Page 1 of 3 Rev. Sep. 2019 DESCRIPTION: The Contractor shall crack and seat an existing portland cement concrete (PCC) pavement, including PCC shoulders, within the limits shown on the plans (or within revised limits

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304 Rubbilizing Existing PCC Pavement MediaWiki

The existing pavement condition will determine the size of the shoe the Contractor will be able to use on the resonant frequency pavement breaking machine. If the pavement is demolishing easily and with little oversize, a wider shoe could possibly be used.

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City of Torrance Home

dowel into existing pcc pavement at 24" o.c., deformed bar, 6" embedment centered in existing slab. 40 piles -50 18" po able water lin w/ steel cÅsinc 10 dowel shall be epoxied in existing slab and cast in new slab. a tracer wire shall be placed on top of the facility, when required by

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Pavement Rehabilitation Iowa DOT

Pavement Existing PCC " 4 3 " 2 1" 1 4 1 6'-10' 12'' 6'-10' 2' 6'-10' 12" L C min. 5' min. 5' Concrete Removal Area 2 Joint 'BT-3' Composite Pavement 10'' 8'' to than 8'' Less than 10'' More PCC Pavement Dowels or Tie Bars Joint 'CD' 'RT' Joint 'RT' Joint Bars Line Lane (Paint) PCC Patch 6 7 PV-101 joints are skewed. Construct rectangular

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PCC Patching Pavement Interactive

A PCC full depth patching process proceeds as follows (ACPA, 1995 [1] ): Locate the area to be patched. If the area to be patched is too close to an existing joint or crack, the patch area should be extended as follows: Patch boundary within 2 m (6 ft.) of an existing undoweled transverse joint. Extend the patch to the transverse joint.

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Best Practices of Concrete Pavement Transition Design and

Figure 2-32 Unbonded Overlay to Existing or Reconstructed PCC Pavement Transition.. 30 Figure 3-1 Restraint Cracks in the Turning Radius Transition Area.. 31 Figure 3-2 Restraint Cracking from Drainage Inlet Box.. 32 Figure 3-3 Uncontrolled Longitudinal Crack Suggests Location of an Untied,

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Best Practices for Jointing of Concrete Pavements

PCC Jointing Applications • Roundabouts, Airports, Parking Lots, • “C” joint for pavements typically less than 8” and less Match existing joints or cracks location AND type! Place joints to meet in-pavement structures Remember maximum joint spacing

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Pavement Standards Caltrans California

Pavement Policy Bulletins (PPBs) & Design Information Bulletins (DIBs) PPB 09-02 Quieter Pavement Strategies for Noise Sensitive Areas October 15, 2009 (PDF) DIB 73: Portland Cement Concrete Pavement (PCCP) Slab Replacements with Existing Edge Drains November 1, 1988 (PDF) DIB 79-04: "Design Guidance and Standards for Roadway Rehabilitation

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CONCRETE PAVEMENT GUIDE California

100.3 CONCRETE PAVEMENT PROJECT IMPLEMENTATION 100-7. 100.3.1 Pavement Strategy Recommendations 100-8. 100.3.2 Strategy Combinations and Preoverlay Repair 100-11. CHAPTER 110 STRATEGY EVALUATION. 110.1 STRATEGY EVALUATION PROCESS 110-1. 110.2 STEP 1: EVALUATE EXISTING CONDITIONS 110-3. 110.2.1 Faulting Mechanism Analysis 110-6

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Appendix A Literature Review Using Existing Pavement

Unbonded PCC over PCC An unbonded PCC overlay (sometimes called a separated overlay) contains an interlayer between the existing PCC pavement and the new PCC overlay (Figure A.20). Unbonded overlays of all types (jointed plain, jointed reinforced,

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ENGINEERING BRIEF NO FAA

on existing PCC pavements. Reflective cracking is prevented by obliteration of the existing pavement distresses and the destruction of the existing slab action. When used in a rigid pavement section, the rubblized layer is intended to provide a uniform subbase

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BEST PRACTICES-LONG LIFE FLEXIBLE PAVEMENT

true irrespective of the existing pavement type (i.e., distressed HMA or PCC), although experience shows that reflective cracking can be more predominant when the existing pavement is a PCC. Reflection cracking can occur in an HMA overlay over any joint or crack in the PCC pavement. The current state-of-the-art does not provide accurate

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Structural PCC Overlays for HMA Pavement Pavement

Thin composite whitetopping (Figure 1) is a PCC overlay intentionally bonded to an existing flexible pavement with a PCC slurry or grout in order to create a composite pavement section (Mack, Hawbaker and Cole, 1998 [1]).This composite section, acting as a single layer, is thicker than just the PCC overlay and thus, results in substantially reduced maximum slab tensile stresses (on the order

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Chapter 4 PCC/PCC Design Guidelines Composite Pavement

The existing concrete from I-94 was recycled as 50% of the coarse aggregate. There may be many projects for which such recycling of existing old PCC and old HMA/PCC pavements into new composite pavement would result in a major reduction in the haul distances involved, which would then result in lower energy use and costs.

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The District Department of Transportation

existing pcc pavement to 91/8' drill hole and epoxy v' dia. plain dowel, 18" long q 12" c/c 6x12-w6xw6 wwf joint filler new pcc pavement sleeve grease free end max. 81/8" ml issued. revision a ppr0val full depth saw cut all sides joint recom a-a: bars expansion section notes: 1. anchor tie joint and dowels into existing

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MnDOT Pavement Design Manual

Paving >2” of HMA on an existing PCC pavement’s surface. It is intended to improve ride, reduce surface distress, may improve pavement structure, and preserve the existing pavement. Any existing HMA may be milled prior to the HMA overlay to remove surface distresses and to

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Constructing In-Pavement Lighting, Portland Cement

• Installing in-pavement lights with new PCC pavement construction. • Installing in-pavement lights in existing PCC pavement. • Products and materials. • Installation deficiencies and correction alternatives. Following the main sections of this document is a list of references and additional sources for information.

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Mechanistic Modeling of Unbonded Concrete Overlay

an existing PCC pavement by an asphalt concrete (AC) interlayer. Current UBCO design procedures are based on empirical equations or highly simplified mechanistic models. To overcome the limitations, fracture mechanics concepts, specifically the finite element method-based cohesive zone model (CZM), are introduced in this research

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Section 7040 Pavement Rehabilitation

A. Construct full depth PCC, HMA, and composite patches. B. Construct partial depth PCC and HMA patches. C. Grind existing PCC pavement surface for profile improvement using a diamond grinder. D. Mill the surface of HMA or PCC pavement to improve the

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ITEM 502.75960005 RUBBLIZING EXISTING PORTLAND

ITEM 502.75960005 RUBBLIZING EXISTING PORTLAND CEMENT CONCRETE PAVEMENT Page 1 of 3 01/10 DESCRIPTION: The Contractor shall rubblize and compact an existing portland cement concrete (PCC) pavement, including PCC shoulders, within

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New York State Department of EI Government of New York

before a rubblizing contract is progressed. If the material beneath the existing portland cement concrete (PCC) pavement is not strong or stable enough to support the rubblizing operation, or the water table is located near the subbase, conditions will arise that are expensive to address. 2. Rubblizing is appropriate under the following conditions:

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Remove Existing PCC Pavement Existing Intermediate Joints

Remove Existing PCC Pavement D/2 9" 9" +/- 2" Eliminate Intermediate joints if repair length is less than 20' 13.5' 17.0' Intermediate Joint Spacing (See Note 2) 1‚" x 18" Dowel Bars 1‚" x 18" Dowel Bars Full Depth Pavement Removal Full Depth Pavement Replacement PCC Removal PCC Placement are less than PCC pavement width. 3.

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Developing Slurry Seal Performance Models for Pavement

The existing pavement should receive an accurate assessment including the taking of cores, knowing the pavement load restrictions, checking drainage and base and the PCC Pavement Specifications that are soon to be available on the City and County Pavement Improvement Center

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