Minimum thickness of rigid pavement

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  2. Chapter 5 - Roadway Design Section 5F-1 - Pavement Thickness Design 4 Revised: 2019 Edition The need for separate ESAL tables for flexible and rigid pavements is based on the inherent ability of each type of pavement to distribute a point loading. Rigid pavements have the ability to distribute the load across the slab
  3. AASHTO Pavement Thickness Design Guide When designing pavement thickness for flexible and rigid pavements, the following considerations should be used. 1. Performance criteria (serviceability indexes). Condition of pavements are rated with a presen
  4. imum thickness of aggregate base course under rigid pavements will be 100 millimeters (4.0 inches) over CH, CL, MH, ML, and OH subgrades or that required to meet
  5. imum overlay thickness. The

Rigid Pavements Only • WASHO Road Test (1952-54) Flexible Pavements only • Any concrete pavement, built of any thickness, will have problems on a poorly designed and constructed subgrade or subbase. If specify minimum flexural strength at 28-day of 550 psi & allow 10% of beams to fall below minimum 8. Added tables for minimum layer thickness for flexible and rigid pavement structures. 9. Added detail on reinforcement at a reinforced isolation joint. 10. Added detail for transition between PCC and HMA pavement sections. 11. Added appendix, Nondestructive Testing (NDT) Using Falling-Weight Typ The minimum thicknessthe of transversereinforced wireconcrete or bar and the transverse joint,pavements should be 6 willinches, not exceedexcept 3that inches the or one-half of the wire orminimum thickness for drivewaysbar spacing will in bethe 5 fabricinches or mat. The wires or barsand the minimum thicknesswill for be reinforcedlapped as follows.overlaysover rigid pavements will(1) beDeformed 4 inches. steel bars will be overlappedfor a distance of at least 24 bar diameters measure The loose GSB layer is compacted by rolling if the compacted thickness of the layer is 100mm or lesser an ordinary smooth wheeled roller may be used. For compacted thickness exceeding 100mm and up to 225mm compaction is don by vibratory rollers of static weight 10 tons or more ¥ The total design thickness selected fromTable 4-2 is 7-1/2 inches. The base courseis 6 inches, and the surface course is 1-1/2 inches

Figure 6-2 Reinforced Rigid Pavement Design The minimum thickness of reinforced concrete pavements should be 6 inches, except that the minimum thickness for driveways will be 5 inches and the minimum thickness for reinforced overlays over rigid pavements will be 4 inches. 6.4 Reinforcing Steel As such, that can be at thin as 3/8 inch if you use really small chips. But you would usually place it on top of some thickness of suitable gravel base material, probably not less then 2 inches minimum. Considering both layers as the pavement you have a realistic minimum of about 2.5 inches Topic 10 - AASHTO Rigid Pavement Design Figure 12.18 3.1.2 Pavement With Subbase (cont.) Example: Subbase thickness=10 Subbase modulus=30,000 psi Subgrade M R=10,000 psi To get k: Cut across the E SB Cut across M R to the TL Vertically meet other line Read k-value k=600pci Topic 10 - AASHTO Rigid Pavement Design Figure 12.19 If bedrock. structures—to find the minimum thickness that will re-sult in the lowest annual cost as shown by both first cost and maintenance costs. If the thickness is greater than needed, tbe pavement will give good service with low maintenance costs, but first cost will be high. If the thick-ness is not adequate, premature and costly maintenance ~ Thickness of base course should be a minimum of 6 inches

2019 Rigid Pavement Design Manual (RPDM) 11/01/18. 2018 Rigid Pavement Design Manual (RPDM) Summary of Changes to 2018 RPDM. 11/01/17. January 2009 Rigid Pavement Design Manual. January 2009 Implementation Memo - Rigid Pavement Design Manual. 01/07/09. January 2006 Rigid Pavement Design Manual The pavement structure is best characterized by slab depth (D). The number of ESALs a rigid pavement can carry over its lifetime is very sensitive to slab depth. As a general rule, beyond about 200 mm (8 inches) the load carrying capacity of a rigid pavement doubles for each additional 25 mm (1 inch) of slab thickness. Drainage coefficient The width of a joint depends on the maximum thermal expansion expected for the life of the pavement. This includes expansion at the time of laying due to internal heat of reactions and contraction. Depends on the time of laying (time of final set)..

The thickness of the overlay is taken as the difference between the monolithic thickness of cement concrete pavement required for the present traffic and the existing thickness. The monolithic thickness has to be designed in accordance with IRC: 58-2002: 'Guidelines for the design of rigid pavements for highways,' IRC, New Delhi-2002 A minimum of seven deflection measurement devices shall each be located at zero inches, eight inches, 12 inches, 18 inches, 24 inches, 30 inches, and 48 inches from the applied impulse load center of impact

(Applies only when subbase extension is toremain in place.) This thickness will varywith the thickness of pavement, extendedlength of subbase, and the slope of pave-ment. When this thickness is less than 8(200), the stabilized shoulder shall be steppeddown at this line to provide a 8 (200)minimum thickness. Illinois Department of Transportatio For pavement rehabilitation works using the crack and seat method, a minimum thickness of 260 mm is prescribed for the new pavement that will be constructed on top of the deteriorated pavement. But for pavement re-blocking, the thickness of the new pavement will be the same as the replaced blocks. In asphalt pavement, a minimum thickness of 50.

Abstract: The procedure for the design of military rigid airfield pavements contained in the Unified Facilities Criteria 3-260-02 gives the minimum thickness of airfield concrete pavements as 6 in. The introduction of the C-17 aircraft and the requirement that dowel bars be used as load transfer mechanism at joints for airfield pavements bring. age will be used for the pavement thickness determination. Should it be necessary to use the pavements at an earlier age, consideration should be given to the use of a design flexural strength at the earlier age or to the use of high early strength cement, whichever is more Mix proportion or pavement thickness may have to economical Then, if 95% compaction is specified, the minimum acceptable unit weight is: 0.95 X 156.0 = 148.2 PCF. If 93% of solid is specified, or a maximum of 7% air voids are allowed in the compacted mat, then the minimum target value would be 145.1 PCF (0.93 X 156.0). The thickness of the course being compacted does influence its compactability ur = (D0.75 0.39 k0.25)3.42 Note: The minimum allowable thickness of PCC pavement shall be 230 mm (9.0 inches) for interstate routes and 200 mm (8.0 inches) for all other roa

Minimum Thickness Requirements for Rigid Pavements

7.4 PAVEMENT THICKNESS DETERMINATION 7-2 7.5 EMBANKMENT AND DRAINAGE DETAILS 7-3 The standards in this manual represent minimum requirements, which must be met for rigid pavement design for new construction and rigid pavement rehabilitation of Florida Department of Transportation projects. Any variances should be documented in projec Minimum recommended slab thickness for rigid pavement design is 6 inches 3 from MECHANICAL ME101 at UET Taxil 1.3 Performance Period. For rigid pavements, the initial pavement structure shall be designed and analyzed for a performance period of 30 yr. A performance period other than 30 yr. may be utilized with justifications. For example, an existing pavement to be widened will be completely reconstructed within 15 yr

Overview of Rigid Pavement Subbase Design • Base layer combinations for concrete slab support (CRCP or CPCD): - 4 in. of hot-mix asphalt (HMA) or asphalt treated base (ATB), or - a minimum 1 in. hot-mix asphalt bond breaker over 6 in. of a cement treated base. L o a d. Rigid Pavement. Subgrade. 4 HMA or ATB. Stabilized Subgrade. L o a. 6. width of tapers and transitions on rigid pavements to be an even multiple of slabs, minimum one slab width. pavement thickness and/or high-speed taxiway exits and similar. subbase subgrade base see note 4 runway width see note 5 section a-a (for hma) surface, base, pcc, etc. thickness per ac 150/5320-6. slope see note 5 subbase subgrade 37.5. Thickness of pavement required Stress- strain behaviour under load Moisture variation In case of rigid pavements to Metal penetration piston 50 mm dia and minimum of 100 mm in length. Two dial gauges reading to 0.01 mm

Advantages of Rigid Pavement. ~ Low maintenance and operation cost. ~ Higher life span ( Life span may be up to 40 years whereas flexible pavement has a life span of only 10-20 years). ~ It has high flexural strength. ~ It has good resistance to petroleum products, oils and chemicals. ~ More environment-friendly than flexible pavement This revision provides pavement design procedures and requirements for the pavement design of roads and parking areas worldwide. It clarifies when State pavement design procedures may be used and when Pavement-Transportation Computer Assisted Structural Engineering (PCASE) is required (0.15), h is the slab thickness in cm and K is the modulus of sub-grade reaction. 29.1.3 Critical load positions Since the pavement slab has nite length and width, either the character or the intensity of maximum stress induced by the application of a given tra c load is dependent on the location of the load on the pavement surface

For loads between (80-100) kN (Road Class I, II, and III), a minimum thickness of rigid pavement slabs (70-80) mm is recommended. For loads between (130-140) kN, the minimum thickness of the rigid pavement slab (105-115) mm is recommended. Downloads Download data is not yet available. Author Biographies. Flexible pavement. Rigid pavement. 1.Grain to grain load transfer. 1.Slab action takes place. 2.Initial cost is low. 2.Intel cost is high. 3.Joints are not required. 3.Joints are required. 4.Good subgrade is required. 4.Good subgrade is not required. 5.Life of span is short -15 years. 5.Long life span - 30 years. 6.Thickness is More. 6.

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 The procedure for the design of military rigid airfield pavements contained in the Unified Facilities Criteria 3-260-02 gives the minimum thickness of airfield concrete pavements as 6 in. The introduction of the C-17 aircraft and the requirement that dowel bars be used as load transfer mechanisms at joints for airfield pavements bring into. 510.07 Minimum Thickness of Pavement Elements. In any design procedure, it is also necessary to consider construction and maintenance operations in order to avoid the possibility of producing an impractical design. Based on these considerations, it is generally impractical to place surface, base, or subbase layers less than some minimum thickness method to MnPAVE-Rigid for the design of city and county roads in Minnesota. However, a minimum slab thickness of 6 inches and a joint spacing of 12 or 15 feet may be necessary to obtain thicknesses per unit slab length similar to those of MnPAVE-Rigid. To ensure uniform pavement design practices, MnDO

What is the minimum thickness of a flexible pavement and a

at a minimum, a preliminary subgrade investigation and preliminary pavement design report that recommends typical pavement structural section based on the known site soil conditions, Table 5.7, and the applicable Traffic Impact Study. The preliminary reports shall use the Equivalent Single Axle Loads (ESALs) of Table 5.2 The terms for various pavement layers found in flexible and rigid pavements are shown in . Figure 1. Rigid pavements may have a wearing surface as indicated in Section 9.2.3 in this Supplement. The pavement structure consists of the base and subbase layers. The subgrade may contain a layer o Street Classification Flexible Pavement Composition Rigid Pavement Composition (Requires Written Approval by Township Trustees) Minimum Pavement Composition SN=2.66 Residential Local ADT < 200 1 ½ inches of 404 Surface Course on 1 ½ inches of 402 Intermediate Course on 3 inches of 301 on 4 inches of 304 SN = 2.66 1 ½ inches of 404 Surfac Pavement design methods to be used for flexible and rigid pavements shall be as set forth in the latest revision of AASHTO Interim Guide for Design of Pavement Structures, 1972, as revised in 1981, with Minimum pavement slab thickness for Portland Cement Concrete Pavement is eight inches

minimum thickness. down at this line to provide a 8 (200) (200), the stabilized shoulder shall be stepped ment. When this thickness is less than 8 length of subbase, and the slope of pave-with the thickness of pavement, extended remain in place.) This thickness will vary 1 (Applies only when subbase extension is to unless otherwise shown understanding of pavement design theory, principles, and practical design application. 620.4 Field Investigation The purpose of the requirements in this section is to outline the minimum exploration that is needed to adequately characterize the existing layer thickness and subgrade strength of a pavement structure for pavement design Civil Engineering questions and answers. S 11) A rigid pavement is to be designed. The design traffic is 200,000 HVAG. a. Identify the minimum subbase thickness and type b. If the subgrade has a design CBR of 10%, then what is the effective subgrade strength 5 Marks 12) Two axles, TADT and TRDT are each loaded with 175 kN

Pavement Design in Road Construction - Design ParametersConcrete Road Construction at Rs 1500/square meter | सड़क

Rigid Pavement Construction Of Rigid Pavement

The minimum overall pavement thickness except rigid pavements shall be 250 mm. Asphaltic Concrete surfacing less than 30mm shall not be included in the overall pavement thickness. Minimum Pavement Thickness 2. The subbase layer shall extend a minimum of 150mm behind the rear face of any kerbing and/or guttering. Subbas Present Serviceability Rating (PSR) is based on a rating scale that designates the condition of the pavement at any instant of time. This rating is the average rating of a panel of individuals who rate the pavement on a scale from 0 to 5.0. A rating of 5.0 indicates a perfect pavement, whereas a rating of 0 indicates an impassable pavement The procedure for the design of military rigid airfield pavements contained in the Unified Facilities Criteria 3-260-02 gives the minimum thickness of airfield concrete pavements as 152 mm (6 in.). The introduction of the C-17 aircraft and the requirement of dowel bars as a joint load transfer mechanism bring into question the validity of the. Rigid pavement consists of the following layers: • Concrete Slab (Surface Layer) - Provides a skid-resistant surface, prevents the infiltration of surface water, and provides structural support to the aircraft. • Subbase - Provides uniform, stable support for the pavement slab. A minimum subbase thickness of 4 inches is generally required.

This pressure deformation characteristics of rigid pavement lead Westergaard to the define the term radius of relative stiffness in cm is given by the equation . (1) where E is the modulus of elasticity of cement concrete in kg/cm (3.0 10 ), is the Poisson's ratio of concrete (0.15), is the slab thickness in cm and is the modulus of sub-grade. iii DEPARTMENT OF THE ARMY UFC 3-260-02 U.S. Army Corps of Engineers CEMP-E Washington, DC 20314-1000 Unified Facility Criteria 3-260-02 PAVEMENT DESIGN FOR AIRFIELD Basics of Concrete Pavement Thickness Design. Mark Anthony. Related Papers. Thickness Design for. By daniel loaiza. Thickness Design for Concrete Hw St Pav. By Kharis RF. PUBLISHED BY THE AMERICAN ASSOClaTlQN OF STATE HIGHWN AND TRANSPORTATION OFFICIALS. EVALUATION OF THE DESIGN TECHNIQUES OF RIGID PAVEMENT or Figure 5-3.7, Pavement Design Manual). (b) The minimum structural thickness is 30 inches, unless the 20 year BESALs exceed 7 million, in which case, the minimum thickness is increased to 36 inches. The Z thickness is the additional material required if the FlexiblePavement or Figure 5-3. For most situations, the rigid pavement should be placed on a minimum of 6 inches (150 mm) of Item 304 Aggregate Base; however, if the surrounding flexible or composite pavement is constructed on subgrade, it would be acceptable to do the same with the rigid pavement. The thickness of the rigid pavement should be a minimum of 8 inches (200 mm)

Pavement Manual: Determining Concrete Pavement Thicknes

Guide to Pavement Technology Part 2: Pavement Structural Design provides advice for the structural design of sealed road pavements. The advice has been generally developed from the approaches followed by the Austroads member agencies. However, as it encompasses the wide range of materials and conditions found in Australia and New Zealand, some parts are broadly based 3 PAVEMENT THICKNESS DESIGN 3.1 PAVEMENT STRUCTURE Minimum pavement thickness Minimum pavement thickness, including the thickness of surfacings shall be as follows. - Roads with kerb and channel (gutter): 250 mm. - Unkerbed roads: 200 mm. - Carparks: 150 mm. Minimum thickness of subbase and base layers shall be as follows The Pavement Design Unit is one of the four Offices in the Pavement Engineering Section. We provide technical expertise on pavement design, determine timing of seasonal load restrictions, and administer the pavement-type selection process. We also maintain and operate Non-Destructive Testing equipment, including Falling Weight Deflectometers (FWD) for district testing and a skid truck and. Rigid pavement construction techniques and opinions of human experts. This system could be considered as a new version of the system Construction of rigid pavements process is sophisticated, developed by Mohsen and Crower (1991)

7 Select rigid pavement type Jointed dowelled/undowelled or CRC 8 Assess pavement shoulder Shoulder/no shoulder requirements 9 Assess minimum subbase CBR% & CVAG3 Figure 9.1 requirements 10 Determine effective subgrade Subbase type & CBR% Figure 9.2 strength CBR%(Eff.) II Select trial base thickness (T) Use Figs 9.7 to 10 Rigid Pavement: Concrete pavement will be designed on a 35-year design life. All rigid designs will consist of a minimum of 10 inches plain concrete and a minimum 2-inch layer of flexible pavement over a base course. Base Course: Chemical treatment of all base granular material prior to the placement of pavement is required Composition and Structure of Rigid Pavement Rigid pavements support loads through rigidity and high modulus of elasticity of concrete slab. The loads will distribute to natural soil layer through different layers of rigid pavement. The base course thickness should be minimum 100mm. Fig 4 : Providing Base Course. Granular Subbase or.

300 - Rigid Pavement Desig

Rigid Pavement Design Spreadsheet: R805FAA.xls This spreadsheet was designed to produce Rigid pavement design thickness' in accordance with FAA Advisory Circular AC 150/5320-6D, Airport Pavement Design and Evaluation. The spreadsheet breaks the design process into 8 steps and is designed to prompt the user fo This usually consists of a selected crushed-rock material bound together with a minimum content of bitumen (1-2% by weight) to form an asphalt layer in the case of flexible pavement, or cement to form a cement-bound material layer in rigid pavement. The base layer distributes the loadings passing over the pavement to avoid any damage of the. pavements or the design of rigid pavements but excludes construction thickness tolerances. 4.15. Design Thickness The required structural thickness of pavement including a design allowance for construction thickness tolerances. 4.16. Superintendent The Superintendent for the Contract as defined in the General Conditions of Contract •Minimum thickness of subbase for FDA What. 8 •Construction tolerances Rigid d on a Design Guidžs Test Austroads Design Other Guides 3. Appendices An Information Guide to Selection of Initial Seal on Clear of Traffic Cost effective pavement thickness design Author Following the AASHTO rigid pavement thickness design procedure (Part 3 Chapter 3 Section 3.2), please (1) calculate the effective composite k-value, and (2) design the most economical slab thickness for a Jointed Plain Concrete Pavement (JPCP) section with the detail information provided below


Rigid pavement consists of constructing a specified portland cement concrete paving on a prepared subgrade. New concrete pavement roadways will not be accepted. Use new bricks with a minimum thickness of 2-¾. Bricks shall meet the requirements outlined in ASTM C-1272 Standard Specifications for Heavy Vehicular Paving Brick, Type F. Early Base/Subbase Thickness 10 Rigid pavement surface typically PCC Minimum, 95% standard proctor (AASHTO T 99) density (98% modified proctor (AASHTO T 180) for heavy traffic roads). b) during pavement life Appendix F gives appropriate methods. Use Soil Type description and moisture (with less accuracy) in Table 3.2 Use Table 4.4.1a or 4.4.1b for thickness during construction Use Table 4.4.2a or 4.4.2b for thickness during pavement life Select worst case Check for frost protection (at end of design process) (Para 4.4.3 The CivilWeb AASHTO Rigid Pavement Design Spreadsheet completes the design of concrete roads or pavements in accordance with AASHTO 1998. It allows compliant concrete pavement designs to be completed in minutes with our unique design analysis tools showing the designer at a glance the optimum concrete pavement thickness

Block Paving - Rigid Block and Brick Pavements | Pavingexpert

variables affecting rigid pavement design. The computer program is based on a comprehensive economic analysis of various phases of rigid pavement design and management. In general, pavement and overlay type, reinforcement design, joint detailing, subbase and concrete thickness de For new road construction, rehabilitation or upgrading, the minimum thickness of the pavement shall be 280 mm. However, a thickness of less than 280 mm., but in no case less than 230 mm., may be adopted if the Cumulative Equivalent Single Axle Load (CESAL) is not more than 7.0 x 106


Design thickness For Industrial and Commercial Roads, the thickness of sub-base must be determined in accordance with the Design Manual for Road and Bridge Works (Volume 7, Section 2, Part 2 HD25), for the estimated volume of traffic, as agreed with us. For all other roads only flexible pavements or pavements constructe Design of Rigid Pavement Determining Subbase thickness page 32 Thickness of Subbase Required for Cement Concrete Road SUBGRADE CBR UNDER 2% 2± 4% 4± 6% 6± 15% OVER 15% Subbase Thickness 280mm 180mm 130mm 100mm 100mm Note: If subgrade is free draining and has a CBR over 15% then no subbase is require Standard Guide for General Pavement Deflection Measurements: D4748 - 10(2020) Standard Test Method for Determining the Thickness of Bound Pavement Layers Using Short-Pulse Radar: D5858 - 96(2020) Standard Guide for Calculating In Situ Equivalent Elastic Moduli of Pavement Materials Using Layered Elastic Theory: D6951 / D6951M - 1 A minimum of 0.6 percent reinforcing steel (based on the pavement cross-sectional area) is recommended to control transverse crack development in the 3 to 6 ft. range. Exceptions should be made only where experience has shown that a lower percentage of steel has performed satisfactorily There are three types of pavement, rigid, flexible, and a composite of rigid and flexibleM&R. recommends the pavement type and thickness. 2.A Rigid (Concrete) Pavement. The minimum pavement thickness of PCC pavement on the State Highway System ll wi be as follows

1993 AASHTO Rigid Pavement Structural Design - Pavement

The main steel is placed in the center of the concrete thickness and is sized and spaced during design, along with the concrete thickness, strength, and pavement supporting layers, to limit the occurrence of distress in the forty-year design period under the specific loading to national distress standards that are contained in the software - Thickness? 6.1.3 Design Principles Functional Scope of Pavement Design Traffic loads Materials Climatic is the minimum thickness required? 6.5.4 AASHTO Design Method: - Design Equation An arterial highway is designed with a combination of rigid pavement and flexible pavement. Both pavements are expected to last the same numbe The minimum thickness of. bituminous or bituminous with base course overlay, reinforced concrete overlay will be 4 inches. the required thickness of overlay should be de-(2) Jointing. existing rigid pavement. This method is limited to. value should be performed on the flexible pavement of new pavements and rehabilitation of existing pavements; both rigid and flexible. It provides a guide for determining new pavement structures similar to the ones shown in Figure 1-1. The design procedures provided will include the determination of the total pavement thickness as well as th Rigid pavement 1. M.Tech Assignment Report 1 | P a g e Civil engineering Department N.I.T Hamirpur 1. Introduction Development of a country depends on the connectivity of various places with adequate road network. Roads constitute the most important mode of communication in areas where railways have not developed much. India has one of the largest road networks in the world (over 3 million km.

In rigid pavement, how are the joints placed at the

best with minimum laboratory CBR's. Traffic histories were estimated for the pavements. Those pavements with approximately the same traffic histories were grouped, total pavement thickness was plotted versus CBR, and data points were coded good or bad, depending upon the performance of the pavements Generally a minimum lift thickness of 2 is recommended. Aggregate sizes of the mix design should be checked prior to use in thinner lifts. SURFACE DESIGNATIONS 9.5 MM Superpave This surface mix is recommended for most surface applications. Recommended minimum lift thickness 11/2. 4.75 MM Superpave This mix is designed primarily for thin lift. 5.4 Design Thickness Design concrete pavements to the nearest ½-inch. If WisPave calculates a concrete slab thickness less than 6 inches, use a 6-inch thickness for undoweled concrete pavements and a 7-inch thickness for doweled concrete pavements in the LCCA. 5.5 Joints Concrete pavement jointing details are shown in SDD 13C18 thickness of a concrete pavement is not overly sensitive to the subgrade support. As an example, there is less than 1 in. (25 mm) difference in thickness that is required for a pavement built on a subbase with a k-value of 400 psi/in (109.6 MPa/m) versus a pavement built on a subbase with a k-value of 100 psi/in (27.1 MPa/m) fo

Flexible and-rigid-pavements

Highway Pavements: Design, Types, Flexible and Rigid

curve by subtracting the base-course layer thickness from the required total pavement thickness. Irrespective of the foregoing, the minimum sub-base thickness shall not be less than 125mm. Asphaltic concrete thickness shall be a minimum of 30mm and may be included as pavement depth in determining the pavement thickness grade or the roof or floor diaphragm. There is no minimum thickness for the paving unit to adequately transfer vertical loads. The required thickness to perform adequately as a result of horizontal loads and pavement deflection is in the range of 1/2 in. (13 mm) to 2 1/4 in. (57 mm) depending on traffi The maximum thickness of expansion joint in rigid pavements is a) 10 mm b) 25 mm c) 50 mm d) 100 m Variable sections permitted on runway pavements 1. Minimum 12 up to 36 2. For runways wider than 150', this dimension will increase. 3. Width of tapers and transitions on rigid pavements must be an even multiple of slabs, minimum one slab width. Full pavement thickness Outer edge thickness (1% traffic) Pavement thickness taper The minimum thickness of paving courses for various roadway classifications and pavement types is as follows: Arterial (Greater than 10,000 ADT) Major Collector (2,500 to 10,000 ADT) Top Lift (AC) 2.5 Single Lift AC 3.0 Bottom Lift (AC) 2.5 AB 6.0 AB 4.0 Minimum SN 1.98 Minimum SN 2.6

DPWH adopts new standards for pavement thickness GMA

documentation to substantiate the recommendation of pavement type and thickness. The pavement design procedures outlined in this chapter are for pavements on the state system only. The procedures in this chapter are inappropriate for non-state agency pavements and/or parking lots width of the pavement section as compared to the minimum width for that class of highway. If a section had the minimum acceptable width, a resurfacing treatment would be applied, if it did not exceed minimum width, a reconstruction treatment would be applied. The criteria used in 1985 can be seen in Table 2 The chart includes minimum pavement thicknesses for approaches within 500 ft. of a bridge since that portion of pavement usually will not receive the benefit of future resurfacings. The first 20 ft. of pavement on-grade adjacent to a bridge abutment is always reserved as a bridge design feature Rigid Pavements 33 Effect of Subgrade Modulus E Rigid Design Example •New thickness designs are generally less conservative than FAARFIELD 1.305 designs for the same inputs. •New calibrations incorporate CC6 failure data. 1 December 2016 FAARFIELD 1.41 -AC 150/5320 6

subgrade and base requirements, thickness designs, and compaction requirements, criteria for stabilized layers, concrete pavement joint details, and overlays. 1-3. References. Appendix A contains a list of references used in this manual. 1-4. Selection of Pavement Type. Rigid pavements or composite pavements with MINIMUM COVER Minimum Cover Rigid Pavement Minimum Cover Unpaved Bottom Of Base (Doweled Joints And Good Condition) Or Poor Condition (Fractured) ] Minimum Sheet Thickness Required Maximum Height Maximum Corner 4000 6000 46 53 60 66 73 81 87 95 103 112 117 128 137 142 31 36 41 46 51 55 59 63 67 71 75 79 83 87 91 40 36 42 48 54 60 66 72 78. Once compacted, the thickness of the sand setting bed should be between a minimum of ¾ in. (19 mm) to a maximum of 1 in. (25 mm). The base typically consists of coarse aggregate (gravel) of varying gradation, compacted to a minimum thickness of 4 in. (102 mm) using mechanical tamping or vibration. Typical Brick Pavement Edge Restraint Clay Paver