dowel bar specifications in rigid pavement

2014 3 5 nbsp 0183 32 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 the wheel load from one slab to the adjacent slab through the shear and bending moment

2020 2 15 nbsp 0183 32 Dowel Bar Locations The conventional approach to dowel bar placement in new pavement construction is to place 11 bars for a 12 foot lane starting with the first bar located 12 inches from the pavement edge with all of the bars placed 12

Q The dowel bars are used in rigid pavements for A resisting tensile stresses B resisting bending stress C resisting shear stresses D transferring load from one portion to another Answer 187 d transferring load from one portion to another

2022 3 10 nbsp 0183 32 Dowel bars are either placed manually before concrete placement using dowel baskets or during construction using automatic DBI equipment Concerns about possible problems with dowel bar misalignments are one of the reasons why DBIs are not widely used in the United States even though they can expedite construction and reduce costs

2016 11 1 nbsp 0183 32 In order to compute the optimal dowel length in cement concrete pavement semi infinite beam on elastic foundation was deduced and modified for the analysis of dowel bars The dowel deflection bending moment and shearing were analyzed for dowel bars under the traffic loading dowel length based on the second inflexion distance was computed and a

Finite element model analysis was performed with respect to patterns of load transfer relying on the action of aggregate interlocking and on the concurrent action of aggregate interlocking and dowel bars The best timing for dowel bar retrofit was determined by way of increase in load transfer efficiency and maximum tensile stress borne at joints

Dowel bars are typically 32 to 38 mm 1 25 to 1 5 inches in diameter 460 mm 18 inches long and spaced 305 mm 12 inches apart Specific locations and

2008 9 22 nbsp 0183 32 Dowel bars and tie bars shall be installed according to details included on the plans Drills used to make holes shall be held in a rigid frame to assure proper horizontal and vertical alignment The equipment shall be operated

2012 12 13 nbsp 0183 32 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

300 Rigid Pavement Design January 2019 Table of Alterations to rigid pavement material specifications jointing considerations and mesh provisions to something other than those provided in ODOT s Construction and Material Adequate concrete cover is needed to transfer stresses between the concrete and the dowel bars

2020 1 4 nbsp 0183 32 runs of pavement using solid stainless bars or a dowel consisting of a welded tube 0 165 inches thick filled with a grout center The program will be run in conjunction with the Federal Highways Administration High Performance Concrete Program In 1998 and 1999 installations of dowel bars have been completed in various states

2017 3 24 nbsp 0183 32 existing pavement as the case may be in accordance with the requirements of these specifications The material shall be laid in one or more layers as necessary to lines grades and cross sections shown on the approved drawings or as directed by the engineer 3 3 2 The thickness of a single compacted Wet Mix Macadam layer shall not be less than

2020 7 1 nbsp 0183 32 water cementitious material ratio 0 42 pcc zero stress temperature 100 9 176 f ultimate shrinkage at 40 relative humidity 537 microstrain reversible shrinkage of ultimate shrinkage 50 time to develop ultimate shrinkage 35 days modulus of rupture or flexural strength 28 days 625 psi dowel bar diameter 1 5 in 1 25 in for rigid pavement

Download Table Dowel Bar Specifications in rigid pavement from publication An Overview on Rigid Pavement Specifications in Developed Countries As any engineering structure for the highway

2020 10 15 nbsp 0183 32 The Rigid Pavement Committee H 3 deliberated on the document in a series of meetings and finalsed it in its meeting held on 19 th December 2014 for placing before the Highways Specifications and Standards Committee HSS