Rigid pavement design example as per irc

Proper design and construction are absolutely necessary if the pavement is to perform. Irc 582015 guidelines for the design of plain jointed rigid pavements for highways second revision irc. Typically street pavement slabs range from 5 to 8 in. Can use load spectra instead of esals computationally intensive. Properties of rigid pavements components of rigid pavements created by aman dembla help the. Design size and spacing of dowel bars at an expansion joint of. Flexible pavement design by california bearing ratio method. Irc subjected to some maximum spacing say 140 as per irc. As per irc the material should at least recover 70% of its original thickness after the release of applied load after one hour at the end of third application of load. The method of design allows use of conventional as well as stabilized materials in any layer of the pavement, and thickness of each layer is taken from the templates given in indian roads congress irc design code. Different pavement types use different types of joints and reinforcement to control the forces acting on the concrete pavement.

Pavement design is the major component in the road construction. Jun 17, 2017 this lecture includes following topics design of rigid pavements what are rigid pavements. Rigid pavement as per irc 582002 rigid pavements are generally used in constructing airports and major highways, such as those in the interstate highway system. Flexible pavement is designed based on cbr method which described in irc. Check out the mix design for concrete roads as per irc. Defined regular use for pavement design as at least 250 annual departures, which is equivalent to 500 annual operations. For design of pavement, both methods required so many calculations. For rigid and semi rigid pavement tensile stress is taken as the design criteria. For example, in china 90% of total pavement structures are. It consists of superimposed layers of selected and processed materials. American concrete pavement association design of concrete pavement for city streets.

Pdf concrete pavement design, construction, and performance. The joints in this diagram are continuous from edge of pavement to edge of pavement. Rigid pavements csir central road research institute. G student 2professor 3assistant professor 1,2,3department of civil engineering 1,2,3samrat ashok technological institute, vidisha m. In addition, they commonly serve as heavyduty industrial floor slabs, port and harbor yard pavements, and heavyvehicle park or terminal pavements. There are many different types of empirical equations available today but this section will present the 1993 aashto guide basic design equation for rigid pavements as an example. Nov 05, 2016 rigid pavementrigid pavement 21 rigid pavements, though costly in initial investment, are cheap in long run because of low maintenance costs, the cost of construction of single lane rigid pavement varies from 35 to 50 lakhs per km in plain area, rigid pavement have deformation in the sub grade is not transferred to subsequent layers. Pavement design with examples complete data civildigital. Ac 15053206f, airport pavement design and evaluations. The purpose of design is to provide a pavement structure which is capable of withstanding the traffic loads which would be coming onto it during the design life of a pavement.

Generally there are two methods to design the pavement from cbr california bearing ratio value. For jointed concrete pavements, regardless of whether reinforced or nonreinforced, the aashtoodot method of pavement design calculates the same. Rigid pavement design considerstions wheel load and temperature stresses design considerations as per irc designof slab design of joints dowel bar design tie bar design. Sep 10, 20 westergaards theory is considered good to design the rigid pavements. The design of rigid pavement follow guidelines given in irc. Flexible pavement design by cbr method is used to determine the total thickness of pavement. Engineers must always determine the requirements of the. Design and construction of a rigid pavement research facility by ron white w. Jun 09, 2017 highwaytransportation lec 18u4pavement design part a1 flexible pavement by bk mahawar duration. Rigidpavement1 design design of plainjointed cement. Design the pavement for construction of a new two lane carriageway for design life 15 years using irc method. This is an introduction to flexible pavement design for engineers.

Poor subgradesubbase preparation can not be overcome with thickness. Design of rigid pavement by irc method and its critical. Joints in rigid pavement transportation engineering. Traffic analysis and design of flexible pavement with. It is not intended as definitive treatise, and it does not encompass the design of rigid pavements. In rigid pavement the stresses are not transferred from the grain to grain to the lower layers. Design, types, flexible and rigid pavement, notes and functions.

Any concrete pavement, built of any thickness, will have problems on a poorly designed and constructed subgrade or subbase. Rigid pavements are designed for a period of 3040 years and thickness design of rigid pavements are influenced by traffic loading. The following pavement joints and related materials are discussed. For mix a, b and c free wc ratio with crushed aggregate and required average flexural target strength of 5. Flexible pavement aspects of basic design as per irc. How to design plain jointed rigid pavements for highways. Westergaard considered the rigid pavement slab as a thin elastic plate resting. Westergaard considered the rigid pavement slab as a thin elastic plate resting on soil. Rigid pavement design of pavements lec14 part1 youtube. The edgedrain system should be as per standard plans, index 446001 for. The design is based on maximum temperature variation, the width of joints and dowel bars placed.

The value of k is expressed as pounds per square inch per inch psifin. This lecture includes following topics design of rigid pavements what are rigid pavements. Nearly onethird or onehalf of the total cost of construction, so careful consideration should be taken in design of pavement. Use the 1993 aashto empirical equation using the previously calculated esal results and the 1993 aashto empirical rigid pavement design equation the following pavement thickness designs can be calculated. Design of rigid pavement by irc method and its critical comparison with aashto method tanu chaturvedi1 dr. Pavement design is governed by a number of considerationsfactors, as given below. As the mr value of gsb and wmm are rated same, advantage.

This is lower than specified maximum wc ratio value of 0. Design and construction of joints for concrete streets. Highwaytransportation lec 22u4 pavement design part b1 rigid pavement by bk mahawar duration. Therefore flexural strength is more often specified than compressive strength in the design of concrete mixes for pavement construction. Design using the aashtoware pavement me design procedure publication no. Dec 29, 2017 rigid pavement as per irc 582002 rigid pavements are generally used in constructing airports and major highways, such as those in the interstate highway system. The initial traffic in the year of completion in each direction is 150 cvpd and growth rate is 5%. Rigid pavementrigid pavement 21 rigid pavements, though costly in initial investment, are cheap in long run because of low maintenance costs, the cost of construction of single lane rigid pavement varies from 35 to 50 lakhs per km in plain area, rigid pavement have deformation in the sub grade is not transferred to subsequent layers.

Paul guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and related. If importing from an external file, you will need to select the file from which to import the data. Design involves finding the joint spacing for a given expansion joint thickness subjected to some spacing of expansion joints as 140m as per irc. The irc have brought out these revised guidelines for the design of plain jointed cement concrete pavements, with and without tied concrete shoulders, for an average daily commercial traffic volume of more than 450 vehicles with laden. An example of pavement design is presented to demonstrate the economy of bonded.

So, here the upward reaction is assumed to be proportional to the deflection, i. Rigid pavement empirical design example pavement interactive. Rigid pavement has the ability to bridge small imperfections in the subgrade. Stokoe ii research report number 3551 construction of a multipurpose rigid pavement research facility research project 3883355 conducted for texas state department of highways and public transportation. For low volume roads, two types of pavements are used, flexible pavement and rigid pavement. Engineers are cautioned that much of pavement design is governed by codes, specifications and practices of public agencies. Office of asset management, pavement, and construction. Flexible pavement design, calculator, sn, aashto design, structural number. They are provided along with longitudinal directions.

Highwaytransportation lec 18u4pavement design part a1 flexible pavement by bk mahawar duration. Factors which affect the selection of these pavements. An example of a well planned joint design is shown in figure 71. Pdf a comparative study on rigid and flexible pavement. Introduction to rigid pavement design ced engineering. Jointed plain concrete pavement jpcp continuously reinforced concrete pavement crcp pavement design.

See section for outline of procedures for using iitpave and annex ii for workedout examples 9. Cbr method recommended by california state of highways. Also, the joints in the mainline pavement are aligned to serve the joints in the adjoining pavements. In the long run it is about half the cost to install and maintain. 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. Pavement design in road construction design parameters. Pavement composition as per 2012 version design example so, as per 2018 version, from plate 1, we are getting, gsb200mm wmm250mm nb. Design size and spacing of dowel bars at an expansion joint of concrete.

The unit weight of concrete is 2400, the coefficient of friction is 1. Design of rigid pavement the soil sub grade is a layer of natural soil prepared to receive the other layers of the pavement the loads on the pavements are ultimately taken by the soil sub grade and dispersed to the earth mass below. Design period or design life of a pavement is the period of time for which the initially. Concrete pavement thickness for rural roads as per irc. The edgedrain system should be as per standard plans, index 446 001 for. The selection process is simplified if both files are in the same windows d irectory. Ratio for durable concrete pavement transverse slope of 14 in. Included all pavement design in chapter 3, including previous guidance on pavement design for airplanes weighing less than 30,000 pounds 610 kg. Design of plainjointed cement concrete pavements as per irc 582011 behavior. How to design plain jointed rigid pavements for highways with. Section 5 rigid pavement construction standard specification for urban infrastructure works 57 edition 1, revision 0 september 2002 2.