The South Dakota Department of Transportation (SDDOT) recently completed Research Project SD2005-01, "Mechanistic-Empirical Pavement Design Guide Implementation Plan", as a first step toward implementing the M-E pavement design process at the Department. The duly defined SDDOT Technical Implementation Group (TIG) regards the work to be performed under ARC as an effective means to begin testing and validating M-E design processes in South Dakota. As a matter of practicality, the TIG would also like to have materials tests performed in parallel with Dr. Sebaaly`s testing by means of Simple Performance Testing (SPT) equipment recently acquired by the Civil Engineering Department at the South Dakota School of Mines & Technology (SDSM&T). The primary purposes of the parallel testing would be to calibrate the new SPT at SDSM&T, and also to begin gaining familiarity and developing expertise within the state where testing resilient modulus (Mr) and dynamic modulus of the construction materials for pavement design processes is concerned.
In addition to the work to be performed by Dr. Sebaaly, the SDDOT recognizes that additional materials testing could be performed with the SPT at SDSM&T for several other hot mix asphalt (HMA) paving projects that will be ongoing around the state. The primary purpose would be to begin developing datasets of Mr and dynamic modulus values for all construction materials that could ultimately be incorporated into a database and utilized as input variables for future M-E pavement design processes.
One (1) HMA sample will be collected at 20 construction projects, maximum.
Each HMA sample will have 3 testing iterations performed for dynamic modulus and 3 testing iterations performed for flow number/flow time.
All materials samples will be collected and provided by the SDDOT.
One sample will be furnished for 10 different soils types, maximum.
Each soil sample will have 1 soil classification performed.
Each soil sample will also have 3 testing iterations performed for Mr and 3 testing iterations performed for CBR.
Materials samples will be collected and provided by the SDDOT.