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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

2020-1-4  Alternative Material Dowel Bars for Rigid Pavement Joints Purdue ECT Team Purdue University, [email protected] DOI: 10.5703/1288284315724 Follow this and additional works at: https://docs.lib.purdue.edu/ectfs Part of the Civil Engineering Commons, and the Construction Engineering and Management Commons Recommended Citation

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"Alternative Material Dowel Bars for Rigid Pavement

The problem of deterioration of concrete pavement joints has resulted in the search for alternate solutions. Fiber-reinforced polymer (FRP) and stainless steel represent corrosion resistant alternatives to conventional galvanized steel in this application.

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Alternative Dowel Bars - Iowa State University

2018-3-12  resistant dowel bar would affect the sales of about 12 million dowel bars per year. One of the likely candidates for an alternative material to stop the corrosion problem is that of a fiber-reinforced polymer, commonly known as FRP or GFRP. Dowel bars are subject also to large cycles of fatigue loading as the bars transmit loads from one

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An Alternative to Traditional Round Dowel Bars

2018-9-4  steel dowel bars have been reduced significantly through research and application of various alternative materials and coatings, including epoxy coatings, stainless and low-carbon, chromium steel bars, and zinc coated steel bars [2, 4, 5] Elliptical dowel

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Misalignment of Dowel Bars in Rigid Pavement Joints ...

2012-12-27  Satisfactory joint performance also depends on appropriate pavement design standards, quality construction materials and good construction and maintenance procedures. This research aims at structurally analyzing the effect of misalignment of dowel bars in rigid pavement joints on the joints performance and suggesting practical remediation.

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Design of Dowel bars - Rigid Pavements. - Civil ...

2014-3-5  Dowel bars are steel bars, generally round in shape, and are used in the expansion joints which, are provided in the concrete pavements (rigid pavements) to allow the expansion of the concrete slab. The main function of the dowel bars is to transfer

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SECTION 5 RIGID PAVEMENT CONSTRUCTION

2012-12-13  5 RIGID PAVEMENT CONSTRUCTION 5-3 5.01 SCOPE 5-3 5.02 STANDARDS 5-3 5.03 MATERIALS FOR CONCRETE BASE 5-5 5.03.1 Cement and Flyash 5-5 5.03.2 Aggregates 5-5 5.03.3 Admixtures 5-8 5.03.4 Concrete 5-8 5.03.5 Reinforcement, Tie Bars and Dowels 5-10 5.03.6 Joint Sealers 5-10 5.03.7 Curing Materials 5-14 5.04 EARTHWORKS 5-15

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325.12R-02 Guide for Design of Jointed Concrete

2005-7-24  similar manner. Dowel bars on the transverse joints are typically not required for low-volume road applications except, in some cases, at transverse construction joints; however, they may be considered in high truck-traffic situations where pavement design thicknesses of

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7 Pavement Joints - IN.gov

2019-5-10  A dowel bar assembly (Figure 7-2), commonly called a "basket", is placed on the subgrade before paving at the location of the contraction joint. The steel bars of this assembly are large and, once incorporated into the concrete pavement, transfer the vehicular load from one slab to another, eliminating differential settlement at the joint.

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Types of Joints in Rigid Pavements: Longitudinal and ...

2021-6-22  In order to strengthen these joints of the CC pavements and to provide load transfer across the joints, suitable Dowel Bars are designed and installed during construction. Construction Joints

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Alternative Dowel Bars - Iowa State University

2018-3-12  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 ... dowel bars―FRP―pavement ...

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Misalignment of Dowel Bars in Rigid Pavement Joints ...

2012-12-27  Satisfactory joint performance also depends on appropriate pavement design standards, quality construction materials and good construction and maintenance procedures. This research aims at structurally analyzing the effect of misalignment of dowel bars in rigid pavement joints on the joints performance and suggesting practical remediation.

Get Price

Experimental Study of Dowel Bar Alternatives Based

In this study, a small-scaled accelerated loading test based on similarity theory and Accelerated Pavement Analyzer was developed to evaluate dowel bars with different materials and cross-sections. Jointed concrete specimen consisting of one dowel was designed as scaled model for the test, and each specimen was subjected to 864 thousand loading cycles.

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Improved Rigid Pavement Joints

Improved Rigid Pavement Joints S.D. TAVABJI AND B.E. COLLEY ... tems have been tried, round steel dowel bars have proved to be the most widely used. Current practice for doweled joints requires dowel diameters to be ... and incompressible material. This is done by use of poured or preformed sealants.

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Dowel and Tie Bars in Concrete Pavement Joints: Theory

2011-11-10  • Dowel bars • Placed across transverse joints at the mid-depth of the slab • Transfer load from one slab to another without preventing the joint from opening • Commonly made of round, smooth, epoxy coated steel bars • Reduce joint faulting and corner cracking Dowel and Tie Bars 2nd International Conference on Best November 2, 2011

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QUALITY REQUIREMENTS OF JOINTS IN RIGID

2016-2-2  7) Dowel bars should be covered by a thin plastic sheath for at least two-thirds of the length from one end for dowel bars in contraction joints or half the length plus 50 mm for expansion joints. The sheath shall be tough, durable and of and average

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SECTION 5 RIGID PAVEMENT CONSTRUCTION

2012-12-13  SECTION 5 RIGID PAVEMENT CONSTRUCTION Standard Specification for Urban Infrastructure Works 5-1 Edition 1, Revision 0 / September 2002 CONTENTS 5 RIGID PAVEMENT CONSTRUCTION 5-3 5.01 SCOPE 5-3 5.02 STANDARDS 5-3 5.03 MATERIALS FOR CONCRETE BASE 5-5 5.03.1 Cement and Flyash 5-5 5.03.2 Aggregates 5-5 5.03.3 Admixtures 5-8

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7 Pavement Joints - IN.gov

2019-5-10  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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CHAPTER 620 RIGID PAVEMENT - California

2020-7-1  JPCP is the most common type of rigid pavement used by the Department. JPCP uses longitudinal and transverse joints to control where cracking occurs in the slabs (see Figure 621.1), and does not contain reinforcement other than tie bars and dowel bars (see Index 622.4).

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Types of Joints in Rigid Pavements: Longitudinal and ...

2021-6-22  Types of joints in rigid pavements are very important because the joints are responsible for reducing stresses developed due to temperature variations. There are two types of joints- Longitudinal Joints Transverse Joints The Transverse joints are subdivided into three categories- Expansion Joints Contraction Joints Construction Joints

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Alternative Dowel Bars - Iowa State University

2018-3-12  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 ... dowel bars―FRP―pavement ...

Get Price

Misalignment of Dowel Bars in Rigid Pavement Joints ...

2012-12-27  Satisfactory joint performance also depends on appropriate pavement design standards, quality construction materials and good construction and maintenance procedures. This research aims at structurally analyzing the effect of misalignment of dowel bars in rigid pavement joints on the joints performance and suggesting practical remediation.

Get Price

Dowel and Tie Bars in Concrete Pavement Joints: Theory

2011-11-10  • Dowel bars • Placed across transverse joints at the mid-depth of the slab • Transfer load from one slab to another without preventing the joint from opening • Commonly made of round, smooth, epoxy coated steel bars • Reduce joint faulting and corner cracking Dowel and Tie Bars 2nd International Conference on Best November 2, 2011

Get Price

SECTION 5 RIGID PAVEMENT CONSTRUCTION

2012-12-13  SECTION 5 RIGID PAVEMENT CONSTRUCTION Standard Specification for Urban Infrastructure Works 5-1 Edition 1, Revision 0 / September 2002 CONTENTS 5 RIGID PAVEMENT CONSTRUCTION 5-3 5.01 SCOPE 5-3 5.02 STANDARDS 5-3 5.03 MATERIALS FOR CONCRETE BASE 5-5 5.03.1 Cement and Flyash 5-5 5.03.2 Aggregates 5-5 5.03.3 Admixtures 5-8

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325.12R-02 Guide for Design of Jointed Concrete

2005-7-24  similar manner. Dowel bars on the transverse joints are typically not required for low-volume road applications except, in some cases, at transverse construction joints; however, they may be considered in high truck-traffic situations where pavement design thicknesses of

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Pavement Manual: Rigid Pavement Design

1.1.2 Concrete Pavement Contraction Design (CPCD) CPCD has transverse joints spaced at regular intervals. The transverse joints are used to control temperature-induced contraction and expansion in the concrete. Smooth dowel bars are used at the transverse joints for load transfer. The transverse joints

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255 Full Depth Pavement Removal and Rigid

2021-5-11  Dowel Bars and Basket Assemblies. Dowel bars may be epoxy coated steel 709.13 or Fiber Reinforced Polymer (FRP) bars 705.01. Basket assemblies must be epoxy coated steel. Removal of Existing Pavement (255.03) The Engineer must mark the limits of the areas to be repaired. The minimum longitudinal length of a repair is 6 feet (1.8 meters).

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Rigid pavement design - IIT Bombay

Load capacity of the dowel system is 40 percent of design wheel load. Joint width is 3.0 cm and the permissible stress in shear, bending and bearing stress in dowel bars are 1000,1500 and 100 respectively. Design the length and spacing of tie bars given that the pavement thickness is 20cm and width of the road is 7m with one longitudinal joint.

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CONCRETE ACCESSORIES JOINT DOWELING SYSTEMS

2021-6-22  ground concrete joints. Sika® Speed Dowel® has revolutionized how the concrete ... “Dowels across pavement joints can provide load transfer while permitting the joints to move. When dowels are ... Material Composition 100% polypropylene Compressibility ASTM D695 5500-8000 psi

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Construction of rigid pavement - SlideShare

2016-11-20  2)Construction of contraction joints with dowel bars. 1. Location of contraction joints are marked . If slip form paver is used then dowel bars are cut to specified length and appropriately placed. 2. Dowel inserting plate of paver reaches marked location , the inserter switch is activated which inserts the bars

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Experimental Study of Dowel Bar Alternatives Based

In this study, a small-scaled accelerated loading test based on similarity theory and Accelerated Pavement Analyzer was developed to evaluate dowel bars with different materials and cross-sections. Jointed concrete specimen consisting of one dowel was designed as scaled model for the test, and each specimen was subjected to 864 thousand loading cycles.

Get Price

Laboratory Evaluation of Alternative Dowel Bars for

2007-1-1  Dowel bars are a useful tool for transferring loads from one highway concrete slab to another across joints. Although dowels are used to increase load transfer capabilities across joints, they introduce problems, including stress concentrations and corrosion. Most dowel bars have circular cross sections.

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Misalignment of Dowel Bars in Rigid Pavement Joints

2012-10-18  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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IGGA Guide Specification: Dowel Bar Retrofit (DBR ...

2018-12-18  Dowel bar retrofit (DBR) consists of installing epoxy-coated, smooth, round dowel bars into existing concrete pavement across transverse joints and/or cracks. Slots are cut using diamond-tipped saw blades; the concrete is removed using lightweight jackhammers. The

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Concrete Pavement Joint Design and Construction

2009-2-26  Dowel Bars: Never “designed”; typically selected based on thickness what if – pavement always fails by fatigue and not erosion? Proven dowel bar retrofit uses 50% of the steel of standards. “Non-standard” specs drive up costs. Tie Bars: Again, never “designed” but requirements must change based on subgrade/subbase, climate, etc.

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SERIES 1000 ROAD PAVEMENTS – CONCRETE MATERIALS

2020-1-31  1010 (02/16) Longitudinal Joints 12 1011 (02/16) Dowel Bars 13 1012 (02/16) Tie Bars 14 1013 (02/16) Joint Grooves 16 ... Strength Classes of Concrete and Constituent Materials for Pavement Layers 1 (02/16) Concrete in rigid or rigid composite pavements shall be one of the classes ... submit the relevant material declarations of performance to ...

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Best Practices for Jointing of Concrete Pavements

2020-8-27  - Place joints to meet in-pavement structures - Remember maximum joint spacing - Place isolation joints where needed - Locations can be adjusted in the field! ... Fig. 9.3 ACPA Best Practices for Airport Concrete Pavement Construction •Dowel bars are used •Last three joints are doweled. Airfield Panel Sizes. Table 6 from ACPA IS202P. When ...

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CHAPTER 620 RIGID PAVEMENT - California

2020-7-1  JPCP is the most common type of rigid pavement used by the Department. JPCP uses longitudinal and transverse joints to control where cracking occurs in the slabs (see Figure 621.1), and does not contain reinforcement other than tie bars and dowel bars (see Index 622.4).

Get Price

Types of Joints in Rigid Pavements: Longitudinal and ...

2021-6-22  Types of joints in rigid pavements are very important because the joints are responsible for reducing stresses developed due to temperature variations. There are two types of joints- Longitudinal Joints Transverse Joints The Transverse joints are subdivided into three categories- Expansion Joints Contraction Joints Construction Joints

Get Price