- #1993 aashto guide for design of pavement structures manual
- #1993 aashto guide for design of pavement structures software
44(2.0) (5.5) (D3) D3 = 7.73 inches Use D3 = 8.0 inches for construction.1 1After rounding to the nearest half-inch, per the recommendations in the 1993 AASHTO Design Guide. From the City of El Paso and TxDOT guidelines, recommended base range 4-10 inches, Therefore D2 is equal to 5.5 inches Solving equation for subbase layer: 2.7=.
#1993 aashto guide for design of pavement structures software
Values for design: a1 = 0.44, a2 = 0.14, and a3=0.11 Drainage coefficients mi for all unbound layers are set to 1.0įor the required overall structural number (SN) using software or excel solver: SN = 2.71.ġ2 Step 8: Determine the design layer thicknesses for the pavement section to apply to equation: From the City of El Paso guidelines, minimum HMA section (wearing surface) should not be less than 1.5 inches. Approximately 80 of all states use the AASHTO pavement design procedures, with the majority using the 1993 version. Recommendations for appropriate ai values for design are given by 1993 AASHTO Design Guide. The AASHTO Guide for Design of Pavement Structures (AASHTO, 1993) is the primary document used to design new and rehabilitated highway pavements. Corporate Author: American Association of State Highway and Transportation Officials. American Association of State Highway and Transportation Officials, Washington D.C., USA. AASHTO guide for design of pavement structures, 1993. Structural layer coefficients ai for all bound layers. AASHTO Guide for Design of Pavement Structures. Reliability = 80% (local urban traffic), ZR = standard normal deviate =, S0 = standard deviation = 0.45 (most commonly used).ħ Step 4: Determine the allowable serviceability loss due to traffic (ΔPSI) ΔPSI = 2.2 given by equation: ΔPSI = pt− po=4.2−2.0=2.2 Values most commonly used for pt and poĨ Step 5: Evaluate the seasonally averaged subgrade resilient modulus MR using the formula: MR = 2555*(CBR) 0.64 MR = psi.ĩ Step 6: Determine the layer properties: Values for design: EAL=Equivalent Axle LoadingĦ Step 3: Determine the design reliability factors: Street Classification: Residential Sub-Collector From recommendations from the City of El Paso, W18 =269,000 EALs. (LEC):įor the design scenario, a 20-year design life is specified. This suite of spreadsheets allows the designer to complete the structural design of flexible roads in accordance with the AASHTO 1993 guide in minutes.
All versions of the AASHTO Design Guide are empirical design methods based on field performance data measured at the AASHO Road Test inģ Design of a flexible pavement section requires the developers to establish a baseline scenario for the location where the pavement is going to be placed The steps in the 1993 AASHTO flexible pavement design procedure summarized below and are in the context of the baseline scenario presented by Licon Engineering Co. The CivilWeb AASHTO 1993 Pavement Design Spreadsheet is a complete design solution for the structural design of flexible roads. AASHTO (2004) ME Pavement (Mechanistic Empirical Pavement Design Method Guide) A relatively new pavement design process based on engineering. MoT specific input parameters are discussed in Section 3.5.
#1993 aashto guide for design of pavement structures manual
The manual chapters, sections, and procedures were set-up similar to those in the 1993 AASHTO Guide for Design of Pavement Structures, to allow for easy referencing. 3.2 Pavement Structure Design Methods Acceptable Pavement Structure Design Methods are: AASHTO 1993 Guide for the Design of Pavement Structures. The research team developed a framework for the companion manual that met NJDOT’s requirements. Approximately 80% of all states use the AASHTO pavement design procedures, with the majority using the 1993 version. manual to the 1993 AASHTO Guide for Design of Pavement Structures. An authoritative guide for understanding the key mechanisms for creating longer lasting pavements, Structural Behavior of Asphalt Pavements describes the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performances, and demonstrates the process of pavement analyses and designs, approaching science from empirical analyses.Presentation on theme: "Calculating Dimensions for a Typical Pavement Section using 1993 AASHTO Flexible Pavement Design Guide."- Presentation transcript:ġ Calculating Dimensions for a Typical Pavement Section using 1993 AASHTO Flexible Pavement Design GuideĢ The AASHTO Guide for Design of Pavement Structures (AASHTO, 1993) is the primary document used to design new and rehabilitated highway pavements. Structural Behavior of Asphalt Pavements provides engineers and researchers with a detailed guide to the structural behavioral dynamics of asphalt pavement including: pavement temperature distribution, mechanistic response of pavement structure under the application of heavy vehicles, distress mechanism of pavement, and pavement deterioration performance and dynamic equations. Structural Behavior of Asphalt Pavements Book Description :
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