Research Partnership Between the National Center for Asphalt Technology (NCAT) and the Minnesota Department of Transport
Full-scale accelerated pavement testing (APT) has been conducted at the National Center for Asphalt Technology (NCAT) Pavement Test Track since 2000. Practical research in surface mix performance, structural pavement design, and pavement preservation has
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Abstract Full-scale accelerated pavement testing (APT) has been conducted at the National Center for Asphalt Technology (NCAT) Pavement Test Track since 2000. Practical research in surface mix performance, structural pavement design, and pavement preservation has been cooperatively funded in 3-year research cycles by state departments of transportation (DOTs) located primarily in the southeastern United States (US). The Minnesota DOT’s Road Research Facility (MnROAD) has been conducting research in these same focus areas for northern states since 1994. Although the two programs have collaborated informally for many years, no formal experiments have been executed that simultaneously address the needs of both northern and southern states. The 6th research cycle at the NCAT Pavement Test Track and the 3rd phase of MnROAD research are for the first time officially connected in a nationwide study through two group experiments that are cooperatively funded by numerous state DOTs from all over the country. The objective of the preservation group (PG15) experiment is to quantify the benefit of pavement preservation on both low volume and high volume roadways. The objective of the cracking group (CG15) experiment is to identify laboratory tests that accurately predict both top-down and thermal cracking in mixes produced with diverse materials and a broad range of expected cracking susceptibilities. Construction of experimental pavements and surface treatments for these two experiments are planned for 2015 and 2016. An overview of the experiment design, constituent
R. Buzz Powell (&) National Center for Asphalt Technology, 277 Technology Parkway, Auburn, AL 36830, USA e-mail: [email protected] B. Worel Minnesota Department of Transportation, Office of Materials and Road Research, 1400 Gervais Ave, Maplewood, MN 55109, USA e-mail: [email protected] © Springer International Publishing Switzerland 2016 J.P. Aguiar-Moya et al. (eds.), The Roles of Accelerated Pavement Testing in Pavement Sustainability, DOI 10.1007/978-3-319-42797-3_39
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R. Buzz Powell and B. Worel
materials, mix designs, construction quality, baseline pavement condition measurements, and analysis methodologies are summarized in this document. Keywords Accelerated pavement testing cracking Thermal cracking
Pavement
preservation
Top-down
1 Background The National Center for Asphalt Technology (NCAT) and the Minnesota Department of Transportation (MnDOT) through its MnROAD facility have formally partnered for the first time to execute pavement preservation and asphalt mixture performance testing experiments with a nationwide implementation impact. Positive experiences with implementable findings that reduce the life cycle costs of pavements and facilitate rapid deployment of sustainable technologies have made past research at both NCAT and MnROAD an outstanding investment for numerous state DOTs. The partnership is expected to synergize the yield and broaden the scope of implementable findings, while at the same time expand the capabilities of bo
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