Shongtao Dai
Minnesota Department of Transportation
GeologyEngineeringDielectricCivil engineeringComposite materialAsphaltSubgradeGeotechnical engineeringMaterials scienceCompactionAsphalt concreteFalling weight deflectometerAsphalt pavementEnvironmental scienceFracture (geology)CrackingFracture mechanicsRemote sensingCoringStructural engineeringGround-penetrating radar
42Publications
11H-index
421Citations
Publications 40
Newest
#1Danial Mirzaiyanrajeh (UNH: University of New Hampshire)
#2Eshan V. Dave (UNH: University of New Hampshire)H-Index: 18
Last. Shongtao Dai (Minnesota Department of Transportation)H-Index: 11
view all 5 authors...
Source
#1Eyoab Zegeye-Teshale (Minnesota Department of Transportation)
#2Thomas Calhoon (UMN: University of Minnesota)
Last. Shongtao Dai (Minnesota Department of Transportation)H-Index: 11
view all 4 authors...
Pavement tenting, also referred to as crack-heaving, is a distress condition that primarily affects bituminous roads constructed in cold climates. This type of distress spreads over long stretches ...
Source
#1Trevor J. Steiner (Minnesota Department of Transportation)H-Index: 5
#2Kyle Hoegh (Minnesota Department of Transportation)H-Index: 11
Last. Shongtao Dai (Minnesota Department of Transportation)H-Index: 11
view all 4 authors...
AbstractTraditional measures of asphalt compaction rely primarily on random cores that only measure a small fraction of the pavement. Recently, the use of ground penetrating radar was indicated to ...
Source
#1Shongtao DaiH-Index: 11
#2Kyle Hoegh (Minnesota Department of Transportation)H-Index: 11
Last. Debaroti GhoshH-Index: 5
view all 3 authors...
Since subsurface stripping extent is important for maintaining the road network, Minnesota Department of Transportation (MnDOT) uses forensic measures such as coring. The destructive nature and lack of coverage provided by this accepted method makes finding nondestructive methods for detecting stripping of in situ asphalt pavements an important need for MnDOT and many other agencies. Stripping between hot mix asphalt layers can cause premature failure of pavements. Knowledge of the lateral locat...
Source
#1Kyle Hoegh (Minnesota Department of Transportation)H-Index: 11
#2Trevor J. Steiner (Minnesota Department of Transportation)H-Index: 5
Last. Shongtao Dai (Minnesota Department of Transportation)H-Index: 11
view all 4 authors...
Available methods for assessing hot-mix-asphalt pavements are typically restricted to destructive methods such as coring that damage the pavement and are limited in coverage. Recently, density prof...
Source
#1Eyoab Zegeye Teshale (Minnesota Department of Transportation)H-Index: 2
#2Kyle Hoegh (Minnesota Department of Transportation)H-Index: 11
Last. Curt Turgeon (Minnesota Department of Transportation)H-Index: 1
view all 5 authors...
Ground penetrating radar (GPR) is gaining renewed attention from many state highway agencies because of its promising application prospects for rapid, full-coverage, continuous, and nondestructive measurements of the density in newly constructed asphalt pavements. However, several operational and technical issues need to be addressed before this technology can be efficiently deployed for quality control/quality assurance practices. The operation-related challenges are relatively easily addressed...
Source
#1Kyle HoeghH-Index: 11
#2Roger RobertsH-Index: 1
Last. Eyoab Zegeye TeshaleH-Index: 2
view all 4 authors...
Asphalt pavement compaction quality control and quality assurance (QC/QA) are traditionally based on destructive drilled cores and/or nuclear gauge results, which both are spot measurements representing significantly less than 1 percent of the in-service pavement. Ground penetrating radar (GPR) is emerging as a tool that can be used for nondestructive continuous assessment of asphalt pavement compaction quality through measuring the pavement dielectric constant. Previous studies have established...
Source
#1Mirkat Oshone (AECOM)H-Index: 5
#2Eshan V. Dave (UNH: University of New Hampshire)H-Index: 18
Last. Shongtao Dai (Minnesota Department of Transportation)H-Index: 11
view all 6 authors...
Different fracture-based tests and parameters have been developed in recent years to assess thermal cracking performance of asphalt mixtures. Agencies have adopted some of these tests, established threshold values, and incorporated them into their specifications to evaluate mixes during design and production. Because of the heterogeneous nature of asphalt mixtures, there can be a substantial amount of variability associated with mechanical test results obtained from fracture-based tests. To obta...
Source
#1Mirkat Oshone (UNH: University of New Hampshire)H-Index: 5
#2Debaroti GhoshH-Index: 5
Last. Shongtao DaiH-Index: 11
view all 6 authors...
To address asphalt pavement thermal cracking, researchers have developed performance-based evaluation tools for asphalt mixtures. A minimum fracture energy obtained from a disc-shaped compact tensi...
Source
#1Kyle HoeghH-Index: 11
#2Shongtao DaiH-Index: 11
Last. Lev Khazanovich (University of Pittsburgh)H-Index: 24
view all 4 authors...
The compaction of asphalt concrete significantly affects long-term pavement performance. Although coring provides a relatively accurate way of assessing in-place density at specific locations, the ...
Source
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