Assistant Professor,
Transportation Engineering and Materials
Director,
Donald and Rose Ann Tomasini
Assistant Professor of Transportation Engineering
Ph.D.,
Office: 301i Dillman
Phone: 906-487-1059
Email: zyou@mtu.edu
RESEARCH INTERESTS
Pavements and transportation
materials, mechanical testing and constitutive modeling of asphalt binders and
mixtures, analysis and control of thermal and reflective cracking in asphalt
pavement and overlays, micromechanics, finite element analysis, discrete
element analysis, and constitutive model development, pavement fracture,
and instrumentation.
Research funded by National
Science Foundation (NSF), Michigan Department of Transportation (MDOT), US
Environmental Protection Agency (EPA), US Department of Transportation (USDOT),
Texas Department of Transportation (TxDOT)
CONFERENCE INFORMATION
Symposium of Pavement Mechanics and
Materials, ASCE Engineering Mechanics Institute Conference 2008, Minneapolis,
Minnesota, May 18-21, 2008 (submit abstract here),
ASCE Geotechnical Special Publication “Pavement
Mechanics and Paving Materials” call for papers, edited by You, Abbas, and
Wang.
Symposium of Pavement Mechanics, ASCE Engineering Mechanics Division Conference 2007, June 3-6, 2007, ASCE Geotechnical Special Publication “Innovations in the Characterization, Modeling and Simulation of Pavements and Materials” ready to publish, edited by You, Abbas, and Wang.
RESEARCH TEAM
Visiting Professor/Scholar/Postdoc - we welcome visitors who would like to work in our lab and collaborate with us.
·
Dr.
X. Hu (2006-2007), Micromechanical modeling for asphalt mixture and mastic,
payment system, pavement management
·
Mr.
D. Li (2006-2007), experimental tests to characterize the performance of
asphalt mixture, recycled asphalt, and nano modified asphalt materials
Ph.D. Candidates- we consider applications for Ph.D./M.S. program at any time. We particularly invite candidates with a solid fundamental background in the area of pavement and materials, nano materials, micromechanics, and discrete/finite element methods. Current students:
·
Mr. Sanjeev Adhikari
·
Mr.
Julian Mills-Beale (started Spring 2007, Ph.D. student): simple performance
tests for asphalt mixture. Attended the NCAT Professor Training on asphalt and
pavement technology June 2007.
·
Mr. Yu Liu (started Summer 2007, Ph.D
student): finite /discrete element modeling of cement based materials. Attended
the NCAT Professor Training on asphalt and pavement technology June 2007.
·
Mr.
Baron W. Colbert (started Spring 2007,
Ph.D student): nondestructive testing for asphalt mixtures and pavements,
aggregate wearing study. Attended the NCAT Professor Training on asphalt and
pavement technology June 2007. UTC- Materials in Sustainable Transportation Infrastructure scholar in summer
2007. 2007 Eisenhower Graduate Fellowship recipient.
·
Mr. Shu Wei Goh (started Summer 2007,
Ph.D. student): simple performance test, warm mix asphalt tests. Attended the
NCAT Professor Training on asphalt and pavement technology June 2007. UTC-
Materials in Sustainable Transportation
Infrastructure scholar in summer 2007.
REU: Undergraduate Assistants - we welcome undergraduate students who have strong
interest in research to apply for a research assistant position in our group.
·
Miss
Kari Klaboe (2008--present): Recycled concrete and asphalt materials -ktklaboe@mtu.edu
·
Mr.
John Butlar (2008- present): Asphalt mixture and aggregate testing
-jcbutler@mtu.edu
·
Mr.
Joshua Marschke (2008- present): Asphalt mixture and aggregate testing
-jrmarsch@mtu.edu
·
Mr.
Shandre Huff (2006-present): Asphalt mixture and aggregate testing - sdhuff@mtu.edu
·
Mr.
Ryan Brennan (2006-present): Asphalt mixture and aggregate testing-
rdbrenna@mtu.edu
·
Mr.
Kelly Heidbrier (2006-present): Asphalt mixture and aggregate testing - krheidbr@mtu.edu
·
Miss
M. Colling (2007): Laser technology in aggregate specific gravity tests,
simplified test specification
·
Mr.
S.W. Goh (2007): Warm mix asphalt tests
·
Miss
Viviana Torres Ortiz (2007, a REU in Sustainability student from
·
Other
assistants
Other Personnel in the
·
Karl
Peterson, Petrographer and research scientist, krpeters@mtu.edu
·
Jim
Vivian, Manager of quality control and quality assurance, jrvivian@mtu.edu
·
Edwin
Tulppo, Manager of asphalt binder testing laboratory, ewtulppo@mtu.edu
·
Rob
Fritz, laboratory coordinator and assistant safety officer, rwfritz@mtu.edu
Collaborators or potential:
Dr.
Q. Dai, MTU
Dr. Tom VanDam, MTU
Dr.
Jianping. Dong, MTU
Dr. Gregory M. Odegard, MTU
Dr.
Haiying Liu, MTU
Dr.
Stan Vitton, MTU
Dr.
Tom Zhiyong Xu, MTU
Dr.
Larry Sutter, MTU
Dr.
Qiong Zhang, MTU
Dr.
Jake Hiller, MTU
Dr.
George Dewey, MTU
Dr.
Keat Ghee Ong, MTU
Christopher
A. Green,
Dr.
E. Masad,
Dr.
M. Jamal Khattak,
Dr.
R.C. Williams,
Dr.
Dr.
Dr. M. Emin Kutay,
Dr.
Hussain Bahia, UW-M
Dr.
Edward Garboczi, NIST
Dr.
Kim Jones, TAMUK
Dr.
Linbing Wang, Virginia Tech
Dr.
Jenny Liu, AUTC,
Dr.
Karim Chatti, MSU
Dr.
Kaiming Xia, Caterpillar Inc.
Graduated students:
·
Preetham
Thotakuri, A Simple Asphalt Pavement Overlay Modeling Approach for Predicting
Reflective Cracking Using Discrete and Finite Element Techniques, Texas A&M
University -Kingsville, TX (graduated in December 2005)
·
Saritha
Poosa, Development of An Online Pavement Information System Based on WEBGIS and
Geodatabase for The South Texas Region, Texas A&M University -Kingsville,
TX (graduated in December 2005)
·
Krishna
Priya Amarapalli, Asphalt Mastic Modulus Prediction Using Finite and Discrete
Element Modeling Techniques,
·
Bardan
Gurung, Predicting Modulus of Elasticity of Asphalt Concrete,
NEWS AND ANNOUNCEMENT
Graduate Research Assistantship Available
Graduate
Research Assistantships for M.S. and Ph.D. student, starting Summer 2008
美国密歇根理工大学: Chinese Government Scholarship Program
密歇根理工大学建于1885年,是一所拥有科学、工程学、林学、商学、电信学和技术学的综合性大学。属于国家一级大学,是全美第2安全校园。主校园位于自然景色怡人的密歇根北部霍顿市,四周有清澈湖水环绕,有丰富多彩的户外活动:滑雪、独木舟、攀岩、露营、游泳等 (Translated by Charles CAO)。
MICHIGAN
TECH GRAD PROGRAMS HIT TOP 50
Graduate
school rankings released last week by U.S. News & World Report rate four of
Michigan
Tech's national rankings were:
*
Civil engineering, No. 43.
*
Environmental engineering, No. 26
*
Materials science and engineering, No. 41.
*
Mechanical Engineering, No. 48.
PHOTOS WITH STUDENTS AND VISITORS (coming soon)
REU
students in Michigan Tech
Undergraduate
students in Michigan Tech
Graduate
students in Michigan Tech
Graduate students in Texas A&M -
Undergraduate
students in Texas A&M -
TEACHING
CE
3101, Civil Engineering Materials, Spring 2006, Fall 2006, Spring 2007
CE
4920, Civil Engineering Independent Study, Fall 2006, Spring 2008
CE 4510, Civil Engineering Baccalaureate Thesis, Fall 2006
CE
5101, Advanced Bituminous Materials, Fall 2007
CE
5190, Evaluation & Simulation of Asphalt, Spring 2008
CE 6999, Doctoral Research, every semester
SELECTED JOURNAL PUBLICATIONS
You, Z.,
Adhikari, S. and You, Z., 3D Microstructural Models for Asphalt Mixtures Using
X-Ray Computed Tomography Images, International Journal of Pavement Research
and Technology, 1(3): pp.94-99, 2008, ISSN 1996-6814
You, Z.,
Adhikari, S., and M. E. Kutay, Dynamic
Modulus Simulation of the Asphalt Concrete Using the X-Ray Computed Tomography
Images. Materials and Structures, Springer Netherlands, ISSN 1359-5997 (Print)
1871-6873 (Online), DOI 10.1617/s11527-007-9303-4.
You, Z.,
Adhikari, S., and Dai, Q.,
Three-Dimensional Discrete Element Models for Asphalt Mixtures, ASCE Manuscript
number: EM/2006/024473, Journal of Engineering Mechanics, American Society of
Civil Engineers (ASCE), accepted in March 2008
Dai,
Q. and You, Z, Micromechanical Finite Element Framework for
Predicting Viscoelastic Properties of Asphalt Mixtures. Materials and
Structures (online published
September 28, 2007), Springer Netherlands, ISSN 1359-5997 (Print) 1871-6873
(Online), DOI 10.1617/s11527-007-9303-4, 41(6): 1025-1037, 2008.
You, Z. and
Goh, S.W., Laboratory Evaluation of Warm Mix Asphalt: A Preliminary Study,
International Journal of Pavement Research and Technology, 1(1): pp.34 -40,
2008, ISSN 1996-6814
You, Z. and
Dai, Q., Dynamic Complex Modulus Predictions of Hot-Mix Asphalt Using a
Micromechanical-Based Finite Element Model, Canadian
Journal of Civil Engineering /Rev. can. génie civ. 34(12): 1519-1528, 2007,
ISSN: 1208-6029
You, Z.,
Adhikari, S., and Dai, Q., Air void
effect on an idealized asphalt mixture using a two-dimensional and
three-dimensional discrete element modeling approaches. International Journal
of Pavement Engineering, Published by Taylor & Francis (accepted)
You, Z. and
Dai, Q. A
Review of Advances in Micromechanical Modeling of Aggregate-Aggregate
Interaction in Asphalt Mixture. Canadian
Journal of Civil Engineering /Rev. can. génie
civ. 34(2): 239-252 (2007)
Buttlar,
W.G., Wagoner, M., You, Z. and Brovold, S.T., Simplifying the Hollow Cylinder
Tensile Test Procedure through Volume-Based Strain, Journal of Association
of Asphalt Paving Technologists (AAPT), pp.367-400, vol. 73, 2004
SELECTED
conference papers
Goh, S.W. and You, Z., The Mechanical Properties of Asphalt Mixture with
Bottom Ash as Aggregates. GeoCongress 2008: Geosustainability and Geohazard
Mitigation, Geotechnical Special Publication (GSP 178), pp. 1008-1015, American
Society of Civil Engineers, 2008
Goh, S.W. and You, Z., Resilient Modulus and Dynamic Modulus of Warm Mix
Asphalt. GeoCongress 2008: Geosustainability and Geohazard Mitigation,
Geotechnical Special Publication (GSP 178), pp. 1000-1007, American Society of
Civil Engineers, 2008
Xia, Y.X., You, Z., Han, Z.D., and Wang, B.G., Temperature Gradient of
Composite Pavement Structures. GeoCongress 2008: Characterization, Monitoring,
and Modeling of GeoSystems, Geotechnical Special Publication (GSP 179), pp.
1036-1045, American Society of Civil Engineers, 2008
Liu, Y. and You, Z., Simulation of Cyclic Loading Tests for Asphalt
Mixtures Using User Defined Models within Discrete Element Method. GeoCongress
2008: Characterization, Monitoring, and Modeling of GeoSystems, Geotechnical
Special Publication (GSP 179), pp. 742-749, American Society of Civil
Engineers, 2008
Adhikari, S., You, Z., and M. E. Kutay, Prediction of Dynamic Modulus of
Asphalt Concrete Using Two-Dimensional and Three-Dimensional Discrete Element
Modeling Approach. GeoCongress 2008: Characterization, Monitoring, and Modeling
of GeoSystems, Geotechnical Special Publication (GSP 179), pp. 1020-1027,
American Society of Civil Engineers, 2008
You, Z., Adhikari, S., and Dai, Q., Two- and Three-Dimensional Discrete
Element Models for Asphalt Mixtures, ASCE Geotechnical Special Publication XXX:
Innovations in the Characterization, Modeling and Simulation of Pavements and
Materials, pp. 118-127, American Society of Civil Engineers (ASCE) , in press
for 2008
You, Z., Adhikari, S., and Dai, Q., Air Void Effect on an Idealized
Asphalt Mixture, ASCE Geotechnical Special Publication XXX: Innovations in the
Characterization, Modeling and Simulation of Pavements and Materials, pp.
55-62, American Society of Civil Engineers (ASCE) , in press for 2008
Dai, Q. and You, Z, A Three-Dimensional Micro-Frame Element
Network Model for Damage Behavior of Asphalt Mixtures, ASCE Geotechnical
Special Publication XXX: Innovations in the Characterization, Modeling and
Simulation of Pavements and Materials, pp. 24-33, American Society of Civil
Engineers (ASCE) , in press for 2008
You, Z., Mills-Beale, J., Williams, R.C., and Dai, Q., Investigation of a New Test
Procedure for Measuring the Specific Gravities of Fine Aggregates in Michigan,
Proceedings of 2008 Annual Transportation Research Board Meeting (CD-ROM), National
Research Council, National Academy of Sciences, Washington, D.C., January
13-17, 2008.
Goh, S.W. and You, Z., Mechanical Properties of Warm Mix Asphalt Using
Aspha-min®, Proceedings of 2008 Annual Transportation Research Board Meeting
(CD-ROM), National Research Council, National Academy of Sciences, Washington,
D.C., January 13-17, 2008.
Adhikari, S. and You, Z., Distinct Element Modeling of the Asphalt
Mixtures: from Two-dimensional to Three-dimensional Models, Proceedings of 2008
Annual Transportation Research Board Meeting (CD-ROM), National Research
Council, National Academy of Sciences, Washington, D.C., January 13-17, 2008.
You, Z.,
Adhikari, S., S.W. Goh, and Dai, Q., Dynamic Moduli for M-E Design for Asphalt
Pavements. ASCE publication: Plan, Build, and Manage Transportation Infrastructure
in China, Proceedings of the Seventh International Conference of Chinese
Transportation Professionals (ICCTP), held in Shanghai, China in May 2007, pp.
841-850, American Society of Civil
Engineers, 2008
Dai, Q.
and You, Z, Micromechanical Finite Element Models for
Micro-Damage and Complex Constitutive Behavior of Asphalt Mixtures. ASCE publication: Plan, Build, and Manage
Transportation Infrastructure in China, Proceedings of the Seventh
International Conference of Chinese Transportation Professionals (ICCTP), held
in Shanghai, China in May 2007, pp. 867-876,
American Society of Civil Engineers, 2008
Goh, S., You, Z., Laboratory
Evaluation of Warm Mix Asphalt, Proceedings, 14th National Conference on
Pavement Engineering, Volume I, pp. 110-124, Douliou, Taiwan, Sept. 13-14,
2007.
Goh, S., You, Z., Van Dam, T. J., Laboratory Evaluation and Pavement
Design for Warm Mix Asphalt, Proceedings of the 2007 Mid-Continent
Transportation Research Symposium, Iowa State University, Ames, IA, August
16–17, 2007, p.1-11. Can be viewed at http://www.ctre.iastate.edu/pubs/midcon2007/YouLaboratory.pdf.
Dai, Q.
and You, Z, Investigation of Linear and Damage-Coupled
Viscoelastic Properties of Sustainable Asphalt Mixture Using a Micromechanical
Finite Element Approach, Geotechnical
Special Publication No. 176, “Analysis of Asphalt Pavement Materials and
Systems: Engineering Methods,” Proceedings of the Symposium on the Mechanics of
Flexible Pavements, June 25-30, 2006, Boulder, CO; edited by Linbing Wang and
Eyad Masad, American Society of Civil Engineers (ASCE), pp. 22-32, 2007.
You, Z.,
Buttlar, W.G., and Q. Dai, Aggregate Effect on Asphalt Mixture Properties by
Modeling Particle-to-Particle Interaction, Geotechnical
Special Publication No. 176, “Analysis of Asphalt Pavement Materials and
Systems: Engineering Methods,” Proceedings of the Symposium on the Mechanics of
Flexible Pavements, June 25-30, 2006, Boulder, CO; edited by Linbing Wang and
Eyad Masad, American Society of Civil Engineers (ASCE), pp. 14-21.
Dai, Q.,
You, Z, and M.H. Sadd, A Micromechanical ViscoelastoPlastic Model for Asphalt
Mixture, Geotechnical
Special Publication (GSP): Asphalt Concrete: Simulation, Modeling, and
Experimental Characterization, American Society of Civil Engineers (ASCE),
pp. 12-20, 2006.
You, Z., Dai, Q., and Gurung, B., Development and Implementation of a Finite Element Model for Asphalt Mixture to Predict Compressive Complex Moduli at Low and Intermediate Temperatures, Geotechnical Special Publication (GSP: Asphalt Concrete: Simulation, Modeling, and Experimental Characterization, American Society of Civil Engineers (ASCE), pp. 21-28, 2006.
SELECTED HONORS AND AWARDS
State of
Mini Grant for Instructional Improvement and Innovation,
State of
Dwight David Eisenhower Faculty Fellowship,
Young Investigators’
Dwight David Eisenhower Faculty Fellowship,
Professor Training, Scholarship, the National Center of
Asphalt Technology (NCAT) and the National Asphalt Pavement Association (NAPA)
Research & Education Foundation, June 2004
Texas Asphalt Pavement Association Professor Scholarship,
June 2004
Who's
Who in Engineering Academia
Dwight David Eisenhower Graduate Transportation Fellowships,
Golden Medal - Science and Technology Award of Shaanxi
Province, China, shared, 2003
Science and Technology Award, China Highway Association,
shared, 2002
Science and Technology Improvement Award, Beijing Science and
Technology Department, shared, 2000
University Fellowship,
Best Paper Award, Highway & Transportation Association
in Inner Mongolia and the Journal Board, China, shared, 1999
lINKS
Research
Paper Links from Andrew F. Braham
Other Links for Civil Engineers
Michigan Tech
Transportation Institute (MTTI)
FUNDED PROJECTS (click to
see a list)
Development of New
Test Procedures for Measuring Fine and Coarse Aggregate Specific Gravities
This research project will use SSDetect
technology to evaluate the specific gravity for various gradations of fine
aggregates in
Development of
Specifications for the Superpave Simple Performance Tests
This project will develop the simple performance
standard for asphalt mixture in terms of dynamic modulus and phase angles under
dynamic loading. This research project will conduct a laboratory testing to
evaluate the five parameters for typical Michigan HMA mixtures. Correlate the
results of the laboratory study to field performance as they relate to flexible
pavement performance. This project is sponsored by Michigan Department of
Transportation (Federal Highway Administration pass through).
A Microstructure-Based Modeling Approach to
Characterize Asphalt Materials
This project will develop a microstructure-based discrete
element modeling approach to simulate asphalt mixture materials. The discrete
element method is used in this study to model the microstructure of the
aggregate-aggregate contact/interlock.
It is anticipated that the implementation of the models can be used to
evaluate asphalt mixture material response and performance to improve pavement
materials and structural design. This project is sponsored by the National
Science Foundation.
REF-RS Experimental Investigation
of Mechanical Properties of Carbon Nanotube-Reinforced Asphalt Binder
This State of
The mission of the TMRC is to provide expertise and
facilities to support MDOT’s materials research and investigations by
maintaining highly qualified technical staff and certified laboratories. The specific areas of focus include the
behavior and performance of portland cement-based materials, asphalt-based
materials, unbound granular materials, and soils. The center activities
presented herein describe a three year plan for the continuation of the
TMRC. The main center activities will
continue to be applied research, education, and outreach, all in direct support
of MDOT’s mission. This project is sponsored by
Michigan Department of Transportation.
STUDENTS

Photo taken by Beth Hoy on
June 6, 2008 in a research group meeting

Photo
taken by Zhanping You on September 13, 2006 in a Warm Mix Asphalt plant
Last update: Tuesday, July 01, 2008