alternative material dowel bars for rigid pavement joints

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Laboratory Testing and Analysis of Joints for Rigid Pavements

Laboratory Testing and Analysis of Joints for Rigid Pavements ... Pavement Joints Unlimited Rigid Pavements 19. Security Classif. (of this report) 20. Security Classif. ... some research works have been performed to apply fiber composite dowel bars as an alternative to steel dowels in concrete pavements. The fiber composite dowels have been ...

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concrete pavements. A joint faulting check is made after the required slab thickness is determined ... changed the rigid pavement performance model. ... predictions for pavements with and without dowel bars, for the design parameters shown. 140 .

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Optimal design on dowel length for cement concrete pavement

The performance of cement concrete pavement depends largely upon how well the joint was constructed. The joint function is greatly related to the dowel bars . Three main damage types of cement concrete pavement (slabcracking, faulting and joint deficiencies) are all relevant with dowel bars.

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Laboratory Evaluation of Alternative Dowel Bars for Use in ...

Laboratory Evaluation of Alternative Dowel Bars for Use in Portland Cement Concrete Pavement Construction ... Parameters including dowel material, dowel shape, joint width, and dowel spacing have been used to evaluate bearing stress performance. ...

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Concrete Jointing and Details: Thickness is Only the Start

without contraction joints in between to control transverse cracking. 2. the pavement is constructed while ambient temperatures are below 40°F (4°C). 3. the contraction joints are allowed to be infiltrated by large incompressible materials. 4. the pavement is constructed of materials that in the past have shown high expansion characteristics.

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Dowel Bars for New and Existing Concrete Pavements

joints. Dowel bars are being used to retrofit many of these older pavements which extend their life by more than 15 years. Dowel bars are also required in all new concrete pavements to ensure a 50-year service life. Dowel bars must stand up to repeated loadings from traffic and resist corrosion to be effective for this extended service life.

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EVALUATION OF ALTERNATIVE DOWEL BAR MATERIALS …

Concrete pavement, joint design, dowel bar, load transfer, alternative dowel bar, epoxy-coating, fiber reinforced polymer, ... Interim Report on alternative dowel bars was prepared in March 2005 that briefly documented ... Coring of Alternative Dowel Bar Materials ...

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Laboratory Evaluation of Corrosion Resistance of Steel ...

Laboratory Evaluation of Corrosion Resistance of Steel Dowels in Concrete Pavement ... Element No. 4.8: Dowel Bar Retrofit Rehabilitation of Rigid Pavements PREPARED FOR: California Department of Transportation (Caltrans), Division of Research and ... the joints of concrete pavements in order to minimize the ingress of water and fine debris ...

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High Performance Rigid Pavements – Alternative Dowel Bar ...

High Performance Rigid Pavements – Alternative Dowel Bar Materials on National Concrete Pavement Technology Center

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Distance To Closest Free Edge Pavement Thickness 1 16

Top Of Pavement Steel Tie Bar Approved Tie Bar Support L 2 2D 2 D L "D" Pavement ... LONGITUDINAL BUTT CONSTRUCTION JOINT D L L Plain Steel Dowel Bars Sheet Metal Bottom Strip For Expansion Joints Only 3" To 9" D D 2 D L ... 1/2 " preformed expansion joint material. Sheet No. Index No. 2008 FDOT Design Standards Revision 305 00 CONCRETE ...

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Preliminary Assessment of the Potential Use of Alternative ...

evaluation of alternative material for concrete highway pavement joints. The contain~d information is the result of an extensive searcl}i of highway literature and expert knowledge.

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RIGID MANUAL COVER-Jan2018

RIGID PAVEMENT DESIGN MANUAL OFFICE OF DESIGN, PAVEMENT MANAGEMENT SECTION ... 5.3.1 Dowel Bars 5-2 5.3.2 Transverse Joint Spacing 5-3 5.4 LONGITUDINAL JOINTS 5-3 5.4.1 Tie Bars 5-3 5.4.2 Design and Construction Considerations 5-3 5.5 EXPANSION JOINTS 5-4 ...

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7 Pavement Joints - IN.gov

pavement. Also, the joints in the mainline pavement are aligned to serve the joints in the adjoining pavements. The following pavement joints and related materials are discussed: 1) D-1 contraction joints 2) Longitudinal joints 3) Transverse construction joints 4) Terminal joints 5) Expansion joints 6) Retrofitted tie bars

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Demonstration and Field Evaluation of Alternative Portland ...

Continuing questions and problems associated with steel dowel bars and protective coatings suggest the need for continued research. The research should investigate the use of new methods and materials to improve the performance of dowel bars and eliminate pavement damage due to deterioration of the dowel material, hence improved long-term

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Alternative Dowel Bars - CORE

Alternative dowel bars for joints have been undergoing investigation at Iowa State University (ISU). The alternatives include size, shape and material parameter changes from the conventional 1.5-in. diameter, 18-in. long steel dowels currently employed in joints of pavements, bridge approaches and ...

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Chapter 8: Rigid Pavement Design - Search

♦ 7.5 Joint Sealing 10. Rigid Pavement Rehabilitation ... Smooth dowel bars are used at the transverse joints for load transfer. The transverse joints are spaced at 15 ft. intervals. ... the department has expanded the applications where CPCD can be used as an acceptable alternative to CRCP. The following criteria list the applications where ...

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FRP Dowels for Concrete Pavements - Nc State University

FRP Dowels for Concrete Pavements By Darren Eddie, EIT A Thesis ... A corrosion-free alternative, such as Fiber Reinforced Polymer (FRP) dowels, could ... The dowel materials within the slab/joint systems were epoxy-coated steel, as well as two products of Glass FRP. This

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Design of Dowel bars - Rigid Pavements. - Civil Engineering

Design of Dowel bars - Rigid Pavements. Hi, How you doing? Let's discuss the design of the dowel bars. So, what are dowel bars first? ... This empty space is filled with some easy to contract material so, that it may adjust its volume according the need of the dowel bar. ... Generally the thickness of the expansion joint and diameter of the ...

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Concrete Pavement Joint Design and Construction

Concrete Pavement Joint Design and Construction Louisiana Transportation Conference February 10, 2009 ... number of lanes/shoulders, concrete material properties, climate (location and placement time), concrete thickness, steel yield, etc. ... High Performance Concrete Pavements: Alternative Dowel Bars for Load Transfer in Jointed Concrete ...

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Misalignment of Dowel Bars in Rigid Pavement Joints

Misalignment of Dowel Bars in Rigid Pavement Joints. The performance of concrete pavements depends to a large extent upon the satisfactory performance of the joints. Most jointed concrete pavement failures can be attributed to failures at the joint, as opposed to inadequate structural capacity (FHWA, November 30, 1990).

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EVALUATION OF ALTERNATIVE DOWEL BAR MATERIALS …

Concrete pavement, joint design, dowel bar, load transfer, alternative dowel bar, epoxy-coating, fiber reinforced polymer, ... Interim Report on alternative dowel bars was prepared in March 2005 that briefly documented ... Coring of Alternative Dowel Bar Materials ...

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NONCORROSIVE DOWEL BARS TO BE EVALUATED

NONCORROSIVE DOWEL BARS TO BE EVALUATED. Because steel dowel bars can corrode in rigid pavement joints, two types of alternative materials for these bars have been introduced into the market: fiber-reinforced polymer (FRP) composite and stainless steel.

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AIRPORT PAVEMENTS FAA, NORTHWEST MOUNTAIN …

A comparative analysis of the costs for the various alternatives will indicate the pavement that is the most economical. An example is as follows: ... frost design is the transition of frost-susceptible material within the frost zone (see ... severe without subdrains that water will eventually pump out through cracks and joints in the pavement.

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Demonstration and Field Evaluation of Alternative Portland ...

Evaluation of Alternative Portland Cement Concrete Pavement Reinforcement Materials ... Alternative Portland Cement Concrete Pavement Reinforcement Materials ... (305 mm) dowel bar spacing and (b) alternative dowel materials, fiber composite and stainless steel, compared to typical 1.5-inch (38 mm) diameter epoxy-coated steel

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1718 – BOND-BREAKER FOR PORTLAND CEMENT CONCRETE …

BOND-BREAKER FOR PORTLAND CEMENT CONCRETE PAVEMENT DOWEL BARS 1718.1 DESCRIPTION Bond-breaker is applied to dowel bars to be placed in contraction joints in rigid pavement before placement of the concrete. The material serves to prevent the concrete from bonding to the dowel bars, thus preserving the joint as a working one. 1718.2 REQUIREMENTS a.

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Technical Advisory T 5040.30 Concrete Pavement Joints ...

Technical Advisory T 5140. 18, Rigid Pavement Joints, dated December 15, 1980, is canceled. ... Dowel Bars. Dowel bars should be used on all routes carrying more than a low volume of heavy trucks. ... The purpose of a joint sealant is to deter the entry of water and incompressible material into the joint and the pavement structure. It is ...

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TECH BRIEF September 2011 Recommendations for …

Dowel bar material Structural and behavioral consider- ... of the design of the rigid pavement structural system and should be deter- ... each side of the joint. Overall dowel bar length should be selected to provide the desired minimum dowel embedment on both sides of the joint, plus additional ...

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Laboratory Evaluation of Corrosion Resistance of Steel ...

Laboratory Evaluation of Corrosion Resistance of Steel Dowels in Concrete Pavement ... Element No. 4.8: Dowel Bar Retrofit Rehabilitation of Rigid Pavements PREPARED FOR: California Department of Transportation (Caltrans), Division of Research and ... the joints of concrete pavements in order to minimize the ingress of water and fine debris ...

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CONCRETE PAVEMENT GUIDE - Caltrans

Existing rigid pavement built in California prior to 2004 is generally nondoweled - JPCP. ... This section contains abrief discussion of concrete, joints, tie bars, dowel barsand . Refer to Chapter 120 and HDM Chapters . 600, 610, and 620 for more information about pavement structure design, materials, and ... In new JPCP pavement, dowels are ...

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Technical Report Documentation Page 1. Report No. 2 ...

• the effectiveness of joint resealing of JC pavement on US 287 in Vernon; and • dowel bar retrofit, diamond grinding, and joint resealing on US 287 in Quanah. 2.

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Chapter 8: Rigid Pavement Design - Search

Chapter 8: Rigid Pavement Design Anchor: #i1013072 Section 1: Overview Anchor: #i1007248 1.1 Rigid Pavement Types. Different pavement types use different types of joints and reinforcement to control the forces acting on the concrete pavement. ... Smooth dowel bars are used at the transverse joints for load transfer. The transverse joints are ...

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Dowel Bar Size and Spacing for Rigid Pavements.pdf | Road ...

Contents: The objective of this paper is to investigate the use of alternative dowel materials and construction to produce longer lasting joints in rigid pavements. Cable. Expected to finish 5/18/2008. which causes looseness of the joint and faulting.

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Non-Corrosive Tie Reinforcing and Dowel Bars for Highway ...

and Dowel Bars for Highway Pavement Slabs November 1993 Submitted to: ... 1.4.2 Rigid highway pavements and dowels 1.4.3 Full-scale pavement dowel fatigue testing . . . . . . . . . . 1.4.4 Fiber composite materials ... Non-Corrosive Tie Reinforcing and Dowel Bars for Highway

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PCC Alt Dowel Bars FHWA Draft - Aslan FRP

Alternative Dowel Bars for Load Transfer in Jointed Concrete Pavements 1 ALTERNATIVE DOWEL BARS FOR LOAD TRANSFER IN JOINTED CONCRETE PAVEMENTS INTRODUCTION Importance of Load Transfer Load transfer is the mechanism through which wheel loads are conveyed across joints and cracks in portland cement concrete (PCC) pavements. In

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Basics of Concrete Pavement Thickness Design - PE Civil Exam

• Joints • Materials Most Often Influence Cost & Selection of Projects C O S T. Concrete Pavement Design ... • Any concrete pavement, built of any thickness, will ... Dowel bars • Lengths from 15-18 in. • 6.0 in. min. embedment length • Diameter

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Advisory Circular - Federal Aviation Administration

PAVEMENT JOINT TYPES, which has been added as page 86-2. c. Figures 3-42 and 3-42A, RIGID PAVEMENT TYPES AND DETAILS, have been revised to change the depth, noted as "T/5" in DETAIL 2, to "T/4"; add a chamfer joint detail; and add new detail "PLAN VIEW - Position of

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J.K. Cable, L.L. Archived - Home | Federal Highway ...

Dowel bars are used as transfer mechanisms to assist in the prevention of damage to roads and highways caused by pumping and faulting at the slab-joint interface. Specifically, the hnction of dowel bars is to transfer a load across the transverse joint from one pavement slab onto the adjoining slab [3].

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alternative material dowel bars for rigid pavement joints

alternative material dowel bars for rigid pavement joints . Alternative Material Dowel Bars for Rigid Pavement Joints. Over the last thirty to forty years, dowel support of the joint in Rigid Joint Pavement (RJP) has been ...

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Effects of Hinged Dowel System on the Performance of ...

Effects of Hinged Dowel System on the Performance of Concrete Pavement Joints Alireza Zeinali University of Kentucky Kamyar C. Mahboub ... Effects of Hinged Dowel System on the Performance of Concrete Pavement ... In concrete pavements with conventional dowel bars, the joints are cut a few days after pouring the concrete.

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19 - Dowel Bars - University of Memphis

Rigid Pavement Mechanics Dowel Bars. ... Find the required dowel bar size for contraction joints in a 10" concrete slab resting on a subgrade material with a 200 psi/in modulus of subgrade reaction. The design load is a 9,000-lb dual wheel ... Alternative Dowel Spacing 25. Title: Microsoft PowerPoint - 19 - Dowel Bars

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