Journal Papers (updated 1/19/18)
Hajibabaee, A., Moadllo, M.K., Behravan, A., Ley, M.T., Quantitative measurement of curing methods for concrete bridge decks, Construction and Building Materials, V162, pp. 306 – 313, 2018.
Weiss, W.J., Spragg, R.P., Ley, M.T., Isgor, O.B., VanDam T., Toward Performance Specifications for Concrete: Linking Resistivity, RCPT and Diffusion Predictions Using the Formation Factor for Use in Specifications, “High Tech Concrete: Where Technology and Engineering Meet”, Springer/FIB, pp. 2057-2065, 2018
Masoud Moradian, Qinang Hu, Mohammed Aboustait, M. Tyler Ley, Jay C. Hanan, Xianghui Xiao, George W. Scherer, Zhidong Zhang, Direct observation of void evolution during cement hydration, Materials & Design, 136C (2017) pp. 137-149.
Biernacki JJ, Bullard JW, Sant G, Brown, K, Glasser, F.P., Ley, M.T., Livingston, R., Nicoleau, L., Olek, J., Sanchez, F., Shahsavari, R., Stutzman, P.E., Sobolev, K., Prater, T., Cements in the 21st century: Challenges, perspectives, and opportunities. J Am Ceram Soc. 2017;100:2746-2773. https://doi.org/10.1111/jace.14948
Cook, M.D., Ghaeezadah, A., Ley, M.T., Impacts of Coarse-Aggregate Gradation on the Workability of Slip-Formed Concrete – ASCE Journal of Materials in Civil Engineering, V30, I2, 2017.
Bullard, J.W., Hagedorn, J., Ley M.T., Hu, Q., Griffin, W., Terrill, J.E., A critical comparison of 3D experiments and simulations of tricalcium silicate hydration, Journal of American Ceramic Society, doi: 10.1111/jace.15323, 2017.
Ley, M.T., Welchel, D., Peery, J., Khatibmasjedi, S., LeFlore, J., “Determining the air-void distribution in fresh concrete with the Sequential Air Method”, Construction and Building Materials, 150 (2017) 723- 737, http://dx.doi.org/10.1016/j.conbuildmat.2017.06.037 0950-0618/
Khanzadeh-Moradllo, M., Ley, M.T., “Quantitative measurement of the influence of degree of saturation on ion penetration in cement paste by using X-ray imaging”, Construction and Building Materials, 141 (2017) 113-129, http://dx.doi.org/10.1016/j.conbuildmat.2017.03.0070950-0618/.
Khanzadeh-Moradllo, M., Ley, M.T., “Comparing In-Situ Ion Diffusion in Alternative Cementitious Materials by Using Non-Destructive X-ray Imaging”, Cement and Concrete Composites, (2017) https://doi.org/10.1016/j.cemconcomp.2017.05.014
Colston, N., Thomas, J., Ley, M. T., Ivey, T. and Utley, J. (2017), Collaborating for Early-Age Career Awareness: A Comparison of Three Instructional Formats. J. Eng. Educ., 106: 326–344. doi:10.1002/jee.20166
Khanzadeh-Moradllo, M., Ley, M.T., “Using X-ray imaging to investigate in-situ ion diffusion in cementitious materials”, Construction and Building Materials, 136 (2017), 88-98, http://dx.doi.org/10.1016/j.conbuildmat.2017.01.038.
Sudbrink, B., Khanzadeh-Moradllo, M., Hu, Q., Ley, M.T., Davis, J.M., Materer, N., Apblett, A., Imaging the presence of silane coatings in concrete with micro X-ray fluorescence, Cement and Concrete Research, V92, February 2017, pp. 121-127 https://doi.org/10.1016/j.cemconres.2016.11.019
Khanzadeh-Moradllo, M., Sudbrink, B., Hu, Q., Aboustait, M., Tabb, B., Ley, M.T., Davis, J.M., “Using Micro X-Ray Fluorescence to Image Chloride Profiles in Concrete”, Cement and Concrete Research, Volume 92, February 2017, Pages 128-141, https://doi.org/10.1016/j.cemconres.2016.11.014
Todak H.N., Tsui M., Ley M.T., Jason Weiss W. (2017) Evaluating Freeze-Thaw Damage in Concrete with Acoustic Emissions and Ultrasonics. In: Shen G., Wu Z., Zhang J. (eds) Advances in Acoustic Emission Technology. Springer Proceedings in Physics, vol 179. Springer, Cham, https://doi.org/10.1007/978-3-319-29052-2_16
Weiss, W.J., Ley, M.T., Isgor, O.B., VanDam T., Toward performance specifications for concrete durability: using the formation factor for corrosion and critical saturation for freeze-thaw, Transportation Research Board, Issue 17-02543, 2017.
Mohammad Tahersima, Tyler Ley, Paul Tikalsky, "Hydration Heat in a Mass Concrete and a Thin Slab with Limestone Blended Cement," International Journal of Materials Science and Engineering, Vol. 5, No. 2, pp. 79-86, June 2017. doi: 10.17706/ijmse.2017.5.2.79-86
Hu, Q., Aboustait, M., Kim, T., Ley, M.T., Bullard, J., Scherer, G., Hanan, J.C., Rose, V., Winarski, R., Gelb, J., “Direct Measurements of Structure, Chemistry and Mass Density During the Induction Period of C3S Hydration”, Cement and Concrete Research, 2016, doi:10.1016/j.cemconres.2016.07.008.
Hu, Q., Aboustait, M., Kim, T., Ley, M.T., Hanan, J.C., Bullard, J., Winarski, R., Rose, V., “Direct three-dimensional observation of the microstructure and chemistry of C3S hydration”, Cement and Concrete Research, 2016, doi:10.1016/j.cemconres.2016.07.006.
Cannon, C., Tepper, J., Apblett, A., and Ley, M. T., "Investigation of the Effectiveness of Surfactants with Different Partition Coefficients to Entrain Air in Cement Paste," Advances in Civil Engineering Materials, Vol. 5, No. 2, 2016, pp. 38-50, https://doi.org/10.1520/ACEM20150025. ISSN 2165-3984
Cook, D., Ley, M.T., Ghaeezadeh, A., “Effects of Aggregate Concepts on the Workability of Slip Formed Concrete”, American Society of Civil Engineering, V28, I10, October, 2016, https://doi.org/10.1061/(ASCE)MT.1943-5533.0001608.
Glasser, D., Crandall, D., Benge, G. Ley, M.T., Kutchko, B., “Relationship between Operational Variables, Fundamental Physics and Foamed Cement Properties in Laboratory and Field Generated Foamed Cement Slurries”, Journal of Petroleum Science and Engineering, vol 145, Sept. 2016, pp. 66-76.
Cavaline, T., Ley, M.T., Sutter, L., Weiss, J.W., VanDam, T., “A Road Map for Research and Implementation of Freeze-Thaw Resistant Highway Concrete”, The 11th International Conference on Concrete Pavements, published proceedings, August, 2016.
Khanzadeh Moradllo, M., Sudbrink, B., Ley, M.T., “Determining the Effective Service Life of Silane Treatments in Concrete Bridge Decks”, Construction Building Materials, May 2016, doi:10.1016/j.conbuildmat.2016.04.132.
Hajibabaee, A., Khanzedeh Maradllo, M.K., Ley, M.T., Comparison of curing compounds to reduce volume change from differential drying in concrete pavement, International Journal of Pavement Engineering, DOI:10.1080/10298436.2016.1210442
S. Nasrazadani , R. Eghtesad, S. Vupputuri, M.T. Ley, and J.D. Ramsey, “Application of Fourier Transform Infrared Spectroscopy to Study Concrete Degradation Induced by Biogenic Sulfuric Acid”, Materials and Structures, May, 2015 doi: 10.1617/s11527-015-0631-5
Hajibabaee, A., Ley, M.T., “The Impact of Wet Curing on Curling in Concrete”, Materials and Structures, March 2015 doi: 10.1617/s11527-015-0600-z.
Aboustait, M., Kim, T., Ley, M.T., Davis, J., “Physical and chemical characteristics of fly ash using automated scanning electron microcopy”, Construction Building Materials, V106, March 2016, 1-10 pp. doi:10.1016/j.conbuildmat.2015.12.098
Hajibabaee, A, Grasley, Z., Ley, M.T., Mechanisms of Dimensional Instability Caused by Drying in Wet Cured Paste, Cement and Concrete Research, 79, Jan 2016, doi:10.1016/j.cemconres.2015.09.007.
Burris, L. E., Alapati, P., Moser, R.D., Ley M.T., Berke, N., Kurtis, K.E., “Alternative Cementitious Materials – Challenges and Opportunities” ACI Special Publication 305-27, (2015), 7 ppgs.
Aichele, C.P,, Venkataramani, D., Smay, J.E., McCann, M.H., Richter, S., Khanzadeh-Moradllo, M., Aboustait, M., Ley, M.T., “A Comparison of Automated Scanning Electron Microscopy (ASEM) and Acoustic Attenuation Spectroscopy (AAS) Instruments for Particle Sizing”, Colloids and Surfaces, V479, August 2015, doi:10.1016/j.colsurfa.2015.03.052.
Sravanthi Vupputuri, Babu Z. Fathepure, Gregory G. Wilber, Elias Sudoi, Seifollah Nasrazadani, M. Tyler Ley, Joshua D. Ramsey, Isolation of a sulfur-oxidizing Streptomyces sp. from deteriorating bridge structures and its role in concrete deterioration, International Biodeterioration & Biodegradation, Volume 97, 2015, Pages 128-134, ISSN 0964-8305, https://doi.org/10.1016/j.ibiod.2014.11.002.(http://www.sciencedirect.com/science/article/pii/S0964830514003278)
M.T. Ley, Qinang Hu, Mohammed Aboustait, Masoud Moradian, Taehwan Kim, J.C Hanan, Robert Winarski, Volker Rose, Jeff Gelb, “Combining nCT and nXRF to Create Time Resolved Three Dimensional Constitutive Maps”, volume of invited talks, International Congress on Tomography of Materials and Structures, Quebec City, Quebec, Canada, 7/1/15.
Hajibabaee, A., Ley, M.T., “The Impact of Wet and Sealed Curing on Curling in Cement Paste from Drying Shrinkage”, ACI Materials Journal, V. 112, 1, January, 2015.
Hu, Q., Ley, M.T., Russell, B., “Determining Efficient Strut and Tie Models for Simply Supported Beams Using Minimum Strain Energy”, ACI Structural Journal, V.111,5 Sept. 2014.
Felice, R., Freeman, J.M., Ley, M.T., “Durable Concrete with Modern Air Entraining Agents”, ACI Concrete International, V36,8, August 2014.
Cook, D., Ghaeezadeh, A., Ley, M.T., “A Workability Test for Slip Formed Concrete Pavements”, Construction and Building Materials, 10.1016/j.conbuildmat.2014.06.087.
Colston, N., Thomas, J., Ivey, T., Utley, J., & Ley, T., “Engineer-led videos: A broader impacts model.” Proceedings of the American Society for Engineering Education, Midwest Section, 2014.
Hu, Q., Aboustait, M., Ley, M.T., Hanan, J.C., Rose, V., Winarski, R., “Combined Three-Dimensional Structure and Chemistry Imaging with Nanoscale Resolution”, Acta Materialia, 77, 2014, pp. 173-182 doi:10.1016/j.actamat.2014.05.050.
Ley, M.T., Tabb B., “A Test Method to Measure the Freeze Thaw Durability of Fresh Concrete Using Overpressure”, TDI Congress, Orlando June 2014.
Mayercsik, N., Kurtis, K., Felice, R., Ley, M.T., “A probabilistic technique for entrained air void analysis in hardened concrete”, Cement and Concrete Research, v. 58, May 2014, doi:10.1016/j.cemconres.2014.01.023.
Hu, Q., Ley, M.T., Davis, J., Hanan, J.C., Frazier, R., Zhang, Y., “3D Chemical Segmentation of Complex Particles with X-ray Computed Tomography and Electron Probe Microanalysis”, Fuel, Vol. 116, Jan. 2014, pp. 229-236.
Qinang Hu, Mohammad Aboustait, M. Tyler Ley, Jay Hanan, Jeff Davis, Robert Winarski, and Volker Rose, "3D Chemical Segmentation of Complex Particles by Combining X-ray Tomography and Chemical Mapping with Laboratory and Synchrotron Techniques", volume of invited talks, 7/1/13, International Congress on Tomography of Materials and Structures, Veerle Cnude and Dominique Bernard, University of Ghent, Ghent, Belgium.
M.T. Ley, Q. Hu, M. Aboustait, J. Hanan, J. Davis, R. Winarski, and V. Rose, Multi Scale Characterization of the Chemical Phases within Fly Ash with Synchrotron and -Laboratory Techniques, Planetary Lecture, 6/10/13, 14th Annual Euroseminar on Microscopy Applied to Building Materials, Ulla Jackobsen, and Karen Scrivner, Copenhagen, Denmark, June 10-14, 2013, Helsingor, Denmark.
Pour-Ghaz, M., Barrett, T., Ley, M. T., Materer, N., Apblett, A., Weiss, J., “Wireless Crack Detection in Concrete Elements using Conductive Surface Sensors and Radio Frequency Identification Technology”, Journal Materials of Civil Engineering, ASCE, 1943-5533.0000891, July 2013.
Materer, N., Field, P., Ley, N., Razzagh, R., Scott, D., Ley, M. T., Apblett, A., “Passive Wireless Detection of Corrosive Salts in Concrete using Wire-Based Triggers”, Journal Materials of Civil Engineering, ASCE, 1943-5533.0000881, June 2013.
Robertson, B., Ley, M.T.; “The Use of Numerical Extrapolation to Accelerate Delayed Ettringite Formation Tests”, ASTM Journal of Testing and Evaluation, V2,1, 2013. DOI: 10.1520/ACEM20130067
Patil, S., Ley, M.T., Browne, R.,; “Adjustable Haunch Forms for Precast Bridge Deck Systems,” Journal of the Precast Concrete Institute, Fall 2012.
Materer, N., Field, P., Ley, N., Razzaghi, A., Scott, D., Ley, M.T., Apblett, A.; “Wire Based Detection of Corrosive Salts in Concrete,” 18th Intelligent Transportation System World Congress, June 2011.
Ley, M.T., Bowne, R., Abrams, J., Gonzalez, R., Bussell, L., Pardon, M., Valles, F., “The Development and Implementation of a Precast Bridge Deck Overhang System”, 3rd FIB/PCI International Proceedings, June 2010.
Ley, M.T., “Determining the Air-Entraining Admixture Dosage Response for Concrete with a Single Concrete Mixture”, ASTM Journal of Testing and Evaluation, V. 7 Issue 2, February 2010.
Ley, M.T., Folliard, K.J., Hover, K.C., “Observations of air-bubbles escaped from fresh cement paste”, Cement Concrete Research (2009), doi:10.1016/j.cemconres.2009.01.019.
Ley, M.T, Chancey, R., Juenger, M., Folliard, K.J., The physical and chemical characteristics of the shell of air-entrained bubbles in cement paste, Cement Concrete Research (2009), doi:10.1016/j.cemconres.2009.01.018.
Ley, T., Harris, N. J., Folliard, K. J., Hover, K. C.; “Investigation of Required Air Entraining Admixture Dosage in Fly Ash Concrete,” ACI Concrete Materials Journal, Vol. 105, 5,September 2008, pp. 494-498.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part I-Evaluation of the State of Practice,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101601.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part II-Development of a standard test method: apparatus and procedure,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101602.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part III-Development of a standard test method—Proportions of materials,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101603.
Ley, T., Riding, K., Widianto, W., Bae, S., Breen, J.; “The Use of Strut and Tie Modeling to Predict the Load Carrying Capacity of a Novel Concrete Beam,” ACI Structural Journal, Vol. 106, 6, December 2007, pp. 749-755.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “Variables Affecting the ASTM C311 Loss on Ignition Test for Fly Ash,” ASTM Journal of Testing and Evaluation, (2006), doi: 10.1520/JAI100286.
Freeby, G. and Ley, T., “Texas’ Totally Prefabricated Bridge Superstructures”, Transportation Research Board Annual Meeting. Washington, D.C., January, 2005.
Reports
1.Cook, M.D., Seader, J.N., Ley, M.T., Russell, B.W., “Investigation of Optimized Graded Concrete for Oklahoma – Phase 2”, Oklahoma Department of Transportation, 2015.
2.Khanzadeh-Moradllo, M., Sudbrink, B., Ley, M.T., “Expected Life of Silane Water Repellant Treatments on Bridge Decks – Phase 2”, 2015.
3.Khatibmasjedi, M., Hu, Q., Ley, M.T., “Insights In to the Mechanisms of Salt Scaling of High Volume Fly ash in Concrete”, Missouri University Transportation Center, 2014.
4.Cook, D., Ghaeezadah, A., Ley, M.T., “Investigation of Optimized Graded Concrete for Oklahoma Phase I”, FHWA-OK-13-12. Oklahoma Department of Transportation 2014.
5.Ley, M.T., Hajibabbee, A., Khatibmasjedi, M., Development and Implementation of a Mechanistic and Empirical Pavement Design Guide (MEPDG) for Rigid Pavements Phase II. January 2015.
6.Cook, M., Ghazeezadah, A., Ley, M.T.; Investigation of Optimized Graded Concrete for Oklahoma. Oklahoma Transportation Center, July 2013.
7.Aboustait, M., Hu, Q., Frazier, R., Zhang, Y., Tabb, B., Ley, M.T., Hanan, J.; Innovative Performance of Fly Ash Performance in Concrete. Oklahoma Transportation Center, February 2013.
8.Ley, M.T., Tabb, B.; Development of a Robust Field Technique to Quantify the Air-Void Distribution in Fresh Concrete. Oklahoma Transportation Center, July 2013.
9.Ley, M.T., Sudbrink, B.; Investigation of Chloride Profiles in Concrete Cores with m-XRF. Virginia DOT, January 2013.
10.Ley, M.T., Hajibabbee, A., Kadam, S., Frazier, R., Aboustait, M., Ebisch, T., Riding, K.; Development and Implementation of a Mechanistic and Empirical Pavement Design Guide (MEPDG) for Rigid Pavements Phase I. January 2013.
11.Ley, M.T., Woestman, S.; Effect of Y-Cracking on CRCP Performance. December 2012.
12.Ley, M.T., Sudbrink, S., Kotha, H.; Expected Life of Silane Water Repellant Treatments on Bridge Decks. December 2012.
13.Ley, M.T., Cook, D., Fick, G.; Concrete Pavement Mixture Design and Analysis (MDA): Effect of Aggregate Systems on Concrete Mixture Properties. July 2012.
ttp://www.intrans.iastate.edu/research/documents/research-reports/mda_aggregates_w_cvr.pdf
14.Ley, M.T., Felice, R., Freeman, J.M.; Assessment of Air Void System Requirements for Durable Concrete. June 2012. http://www.intrans.iastate.edu/research/documents/research-reports/mda_air_void_w_cvr.pdf
15.Materer, N., Ley, M.T., Apblett, A.; Passive Wireless Corrosion Sensors for Transportation Infrastructure. December 2011, OCTREOS7.1-34.
16.Ley, M.T., Rotithor, H.; Performance of Ultra-Thin Whitetopping (UTW) in Oklahoma. July 2011, ODOT SP&R 2222.
17.Ley, M.T., Ghashgesh, M., Patil, S.; Investigations of a Precast Bridge Deck System. July 2010, OTCREOS7.1-31.
18.Mish, Koehler, Emerson, Goode, Ley, Tyagi,; Development of a Strategy to Recognize, Rehabilitate, and Replace Deficient Bridge Infrastructure. July 2009, FHWA #DTFHG1-06-H-00044.
19.Burgher, B., Thibonnier, A., Folliard, K.J., Ley, M.T., Thomas, M.D.A.; Investigation of the Internal Stresses Caused by Delayed Ettringite Formation in Concrete. November 2008, TxDOT project # 5218.
20.Ley, M.T., Robertson, B.,; Investigation of the Impact of Novel Chemical Admixtures on the Frost Durability of Concrete. October 2008, W.R. Grace report.
21.Folliard, K. J., Harris, N.J., Hover, K.C., Ley, M.T., Navarro, A,; Effects of Texas Fly Ash on Air-Entrainment in Concrete. August 2008, TxDOT project # 5207.
22.Trejo, D., Hite, M., Mander, J., Mander, T., Henley, M., Scott, R., Ley, M.T., Patil, S. Development of a Precast Bridge Deck Overhang System for the Rock Creek Bridge. June 2008, TxDOT project # 6100.
23. Folliard, K. J., Barborak, R., Drimalas, T., Garber, S., Ideker, J., Ley, T., Williams, S., Juengar, M., Thomas, M.D.A.; Preventing ASR/DEF in New Concrete. January 2006, TxDOT project # 4085.
Weiss, W.J., Spragg, R.P., Ley, M.T., Isgor, O.B., VanDam T., Toward Performance Specifications for Concrete: Linking Resistivity, RCPT and Diffusion Predictions Using the Formation Factor for Use in Specifications, “High Tech Concrete: Where Technology and Engineering Meet”, Springer/FIB, pp. 2057-2065, 2018
Masoud Moradian, Qinang Hu, Mohammed Aboustait, M. Tyler Ley, Jay C. Hanan, Xianghui Xiao, George W. Scherer, Zhidong Zhang, Direct observation of void evolution during cement hydration, Materials & Design, 136C (2017) pp. 137-149.
Biernacki JJ, Bullard JW, Sant G, Brown, K, Glasser, F.P., Ley, M.T., Livingston, R., Nicoleau, L., Olek, J., Sanchez, F., Shahsavari, R., Stutzman, P.E., Sobolev, K., Prater, T., Cements in the 21st century: Challenges, perspectives, and opportunities. J Am Ceram Soc. 2017;100:2746-2773. https://doi.org/10.1111/jace.14948
Cook, M.D., Ghaeezadah, A., Ley, M.T., Impacts of Coarse-Aggregate Gradation on the Workability of Slip-Formed Concrete – ASCE Journal of Materials in Civil Engineering, V30, I2, 2017.
Bullard, J.W., Hagedorn, J., Ley M.T., Hu, Q., Griffin, W., Terrill, J.E., A critical comparison of 3D experiments and simulations of tricalcium silicate hydration, Journal of American Ceramic Society, doi: 10.1111/jace.15323, 2017.
Ley, M.T., Welchel, D., Peery, J., Khatibmasjedi, S., LeFlore, J., “Determining the air-void distribution in fresh concrete with the Sequential Air Method”, Construction and Building Materials, 150 (2017) 723- 737, http://dx.doi.org/10.1016/j.conbuildmat.2017.06.037 0950-0618/
Khanzadeh-Moradllo, M., Ley, M.T., “Quantitative measurement of the influence of degree of saturation on ion penetration in cement paste by using X-ray imaging”, Construction and Building Materials, 141 (2017) 113-129, http://dx.doi.org/10.1016/j.conbuildmat.2017.03.0070950-0618/.
Khanzadeh-Moradllo, M., Ley, M.T., “Comparing In-Situ Ion Diffusion in Alternative Cementitious Materials by Using Non-Destructive X-ray Imaging”, Cement and Concrete Composites, (2017) https://doi.org/10.1016/j.cemconcomp.2017.05.014
Colston, N., Thomas, J., Ley, M. T., Ivey, T. and Utley, J. (2017), Collaborating for Early-Age Career Awareness: A Comparison of Three Instructional Formats. J. Eng. Educ., 106: 326–344. doi:10.1002/jee.20166
Khanzadeh-Moradllo, M., Ley, M.T., “Using X-ray imaging to investigate in-situ ion diffusion in cementitious materials”, Construction and Building Materials, 136 (2017), 88-98, http://dx.doi.org/10.1016/j.conbuildmat.2017.01.038.
Sudbrink, B., Khanzadeh-Moradllo, M., Hu, Q., Ley, M.T., Davis, J.M., Materer, N., Apblett, A., Imaging the presence of silane coatings in concrete with micro X-ray fluorescence, Cement and Concrete Research, V92, February 2017, pp. 121-127 https://doi.org/10.1016/j.cemconres.2016.11.019
Khanzadeh-Moradllo, M., Sudbrink, B., Hu, Q., Aboustait, M., Tabb, B., Ley, M.T., Davis, J.M., “Using Micro X-Ray Fluorescence to Image Chloride Profiles in Concrete”, Cement and Concrete Research, Volume 92, February 2017, Pages 128-141, https://doi.org/10.1016/j.cemconres.2016.11.014
Todak H.N., Tsui M., Ley M.T., Jason Weiss W. (2017) Evaluating Freeze-Thaw Damage in Concrete with Acoustic Emissions and Ultrasonics. In: Shen G., Wu Z., Zhang J. (eds) Advances in Acoustic Emission Technology. Springer Proceedings in Physics, vol 179. Springer, Cham, https://doi.org/10.1007/978-3-319-29052-2_16
Weiss, W.J., Ley, M.T., Isgor, O.B., VanDam T., Toward performance specifications for concrete durability: using the formation factor for corrosion and critical saturation for freeze-thaw, Transportation Research Board, Issue 17-02543, 2017.
Mohammad Tahersima, Tyler Ley, Paul Tikalsky, "Hydration Heat in a Mass Concrete and a Thin Slab with Limestone Blended Cement," International Journal of Materials Science and Engineering, Vol. 5, No. 2, pp. 79-86, June 2017. doi: 10.17706/ijmse.2017.5.2.79-86
Hu, Q., Aboustait, M., Kim, T., Ley, M.T., Bullard, J., Scherer, G., Hanan, J.C., Rose, V., Winarski, R., Gelb, J., “Direct Measurements of Structure, Chemistry and Mass Density During the Induction Period of C3S Hydration”, Cement and Concrete Research, 2016, doi:10.1016/j.cemconres.2016.07.008.
Hu, Q., Aboustait, M., Kim, T., Ley, M.T., Hanan, J.C., Bullard, J., Winarski, R., Rose, V., “Direct three-dimensional observation of the microstructure and chemistry of C3S hydration”, Cement and Concrete Research, 2016, doi:10.1016/j.cemconres.2016.07.006.
Cannon, C., Tepper, J., Apblett, A., and Ley, M. T., "Investigation of the Effectiveness of Surfactants with Different Partition Coefficients to Entrain Air in Cement Paste," Advances in Civil Engineering Materials, Vol. 5, No. 2, 2016, pp. 38-50, https://doi.org/10.1520/ACEM20150025. ISSN 2165-3984
Cook, D., Ley, M.T., Ghaeezadeh, A., “Effects of Aggregate Concepts on the Workability of Slip Formed Concrete”, American Society of Civil Engineering, V28, I10, October, 2016, https://doi.org/10.1061/(ASCE)MT.1943-5533.0001608.
Glasser, D., Crandall, D., Benge, G. Ley, M.T., Kutchko, B., “Relationship between Operational Variables, Fundamental Physics and Foamed Cement Properties in Laboratory and Field Generated Foamed Cement Slurries”, Journal of Petroleum Science and Engineering, vol 145, Sept. 2016, pp. 66-76.
Cavaline, T., Ley, M.T., Sutter, L., Weiss, J.W., VanDam, T., “A Road Map for Research and Implementation of Freeze-Thaw Resistant Highway Concrete”, The 11th International Conference on Concrete Pavements, published proceedings, August, 2016.
Khanzadeh Moradllo, M., Sudbrink, B., Ley, M.T., “Determining the Effective Service Life of Silane Treatments in Concrete Bridge Decks”, Construction Building Materials, May 2016, doi:10.1016/j.conbuildmat.2016.04.132.
Hajibabaee, A., Khanzedeh Maradllo, M.K., Ley, M.T., Comparison of curing compounds to reduce volume change from differential drying in concrete pavement, International Journal of Pavement Engineering, DOI:10.1080/10298436.2016.1210442
S. Nasrazadani , R. Eghtesad, S. Vupputuri, M.T. Ley, and J.D. Ramsey, “Application of Fourier Transform Infrared Spectroscopy to Study Concrete Degradation Induced by Biogenic Sulfuric Acid”, Materials and Structures, May, 2015 doi: 10.1617/s11527-015-0631-5
Hajibabaee, A., Ley, M.T., “The Impact of Wet Curing on Curling in Concrete”, Materials and Structures, March 2015 doi: 10.1617/s11527-015-0600-z.
Aboustait, M., Kim, T., Ley, M.T., Davis, J., “Physical and chemical characteristics of fly ash using automated scanning electron microcopy”, Construction Building Materials, V106, March 2016, 1-10 pp. doi:10.1016/j.conbuildmat.2015.12.098
Hajibabaee, A, Grasley, Z., Ley, M.T., Mechanisms of Dimensional Instability Caused by Drying in Wet Cured Paste, Cement and Concrete Research, 79, Jan 2016, doi:10.1016/j.cemconres.2015.09.007.
Burris, L. E., Alapati, P., Moser, R.D., Ley M.T., Berke, N., Kurtis, K.E., “Alternative Cementitious Materials – Challenges and Opportunities” ACI Special Publication 305-27, (2015), 7 ppgs.
Aichele, C.P,, Venkataramani, D., Smay, J.E., McCann, M.H., Richter, S., Khanzadeh-Moradllo, M., Aboustait, M., Ley, M.T., “A Comparison of Automated Scanning Electron Microscopy (ASEM) and Acoustic Attenuation Spectroscopy (AAS) Instruments for Particle Sizing”, Colloids and Surfaces, V479, August 2015, doi:10.1016/j.colsurfa.2015.03.052.
Sravanthi Vupputuri, Babu Z. Fathepure, Gregory G. Wilber, Elias Sudoi, Seifollah Nasrazadani, M. Tyler Ley, Joshua D. Ramsey, Isolation of a sulfur-oxidizing Streptomyces sp. from deteriorating bridge structures and its role in concrete deterioration, International Biodeterioration & Biodegradation, Volume 97, 2015, Pages 128-134, ISSN 0964-8305, https://doi.org/10.1016/j.ibiod.2014.11.002.(http://www.sciencedirect.com/science/article/pii/S0964830514003278)
M.T. Ley, Qinang Hu, Mohammed Aboustait, Masoud Moradian, Taehwan Kim, J.C Hanan, Robert Winarski, Volker Rose, Jeff Gelb, “Combining nCT and nXRF to Create Time Resolved Three Dimensional Constitutive Maps”, volume of invited talks, International Congress on Tomography of Materials and Structures, Quebec City, Quebec, Canada, 7/1/15.
Hajibabaee, A., Ley, M.T., “The Impact of Wet and Sealed Curing on Curling in Cement Paste from Drying Shrinkage”, ACI Materials Journal, V. 112, 1, January, 2015.
Hu, Q., Ley, M.T., Russell, B., “Determining Efficient Strut and Tie Models for Simply Supported Beams Using Minimum Strain Energy”, ACI Structural Journal, V.111,5 Sept. 2014.
Felice, R., Freeman, J.M., Ley, M.T., “Durable Concrete with Modern Air Entraining Agents”, ACI Concrete International, V36,8, August 2014.
Cook, D., Ghaeezadeh, A., Ley, M.T., “A Workability Test for Slip Formed Concrete Pavements”, Construction and Building Materials, 10.1016/j.conbuildmat.2014.06.087.
Colston, N., Thomas, J., Ivey, T., Utley, J., & Ley, T., “Engineer-led videos: A broader impacts model.” Proceedings of the American Society for Engineering Education, Midwest Section, 2014.
Hu, Q., Aboustait, M., Ley, M.T., Hanan, J.C., Rose, V., Winarski, R., “Combined Three-Dimensional Structure and Chemistry Imaging with Nanoscale Resolution”, Acta Materialia, 77, 2014, pp. 173-182 doi:10.1016/j.actamat.2014.05.050.
Ley, M.T., Tabb B., “A Test Method to Measure the Freeze Thaw Durability of Fresh Concrete Using Overpressure”, TDI Congress, Orlando June 2014.
Mayercsik, N., Kurtis, K., Felice, R., Ley, M.T., “A probabilistic technique for entrained air void analysis in hardened concrete”, Cement and Concrete Research, v. 58, May 2014, doi:10.1016/j.cemconres.2014.01.023.
Hu, Q., Ley, M.T., Davis, J., Hanan, J.C., Frazier, R., Zhang, Y., “3D Chemical Segmentation of Complex Particles with X-ray Computed Tomography and Electron Probe Microanalysis”, Fuel, Vol. 116, Jan. 2014, pp. 229-236.
Qinang Hu, Mohammad Aboustait, M. Tyler Ley, Jay Hanan, Jeff Davis, Robert Winarski, and Volker Rose, "3D Chemical Segmentation of Complex Particles by Combining X-ray Tomography and Chemical Mapping with Laboratory and Synchrotron Techniques", volume of invited talks, 7/1/13, International Congress on Tomography of Materials and Structures, Veerle Cnude and Dominique Bernard, University of Ghent, Ghent, Belgium.
M.T. Ley, Q. Hu, M. Aboustait, J. Hanan, J. Davis, R. Winarski, and V. Rose, Multi Scale Characterization of the Chemical Phases within Fly Ash with Synchrotron and -Laboratory Techniques, Planetary Lecture, 6/10/13, 14th Annual Euroseminar on Microscopy Applied to Building Materials, Ulla Jackobsen, and Karen Scrivner, Copenhagen, Denmark, June 10-14, 2013, Helsingor, Denmark.
Pour-Ghaz, M., Barrett, T., Ley, M. T., Materer, N., Apblett, A., Weiss, J., “Wireless Crack Detection in Concrete Elements using Conductive Surface Sensors and Radio Frequency Identification Technology”, Journal Materials of Civil Engineering, ASCE, 1943-5533.0000891, July 2013.
Materer, N., Field, P., Ley, N., Razzagh, R., Scott, D., Ley, M. T., Apblett, A., “Passive Wireless Detection of Corrosive Salts in Concrete using Wire-Based Triggers”, Journal Materials of Civil Engineering, ASCE, 1943-5533.0000881, June 2013.
Robertson, B., Ley, M.T.; “The Use of Numerical Extrapolation to Accelerate Delayed Ettringite Formation Tests”, ASTM Journal of Testing and Evaluation, V2,1, 2013. DOI: 10.1520/ACEM20130067
Patil, S., Ley, M.T., Browne, R.,; “Adjustable Haunch Forms for Precast Bridge Deck Systems,” Journal of the Precast Concrete Institute, Fall 2012.
Materer, N., Field, P., Ley, N., Razzaghi, A., Scott, D., Ley, M.T., Apblett, A.; “Wire Based Detection of Corrosive Salts in Concrete,” 18th Intelligent Transportation System World Congress, June 2011.
Ley, M.T., Bowne, R., Abrams, J., Gonzalez, R., Bussell, L., Pardon, M., Valles, F., “The Development and Implementation of a Precast Bridge Deck Overhang System”, 3rd FIB/PCI International Proceedings, June 2010.
Ley, M.T., “Determining the Air-Entraining Admixture Dosage Response for Concrete with a Single Concrete Mixture”, ASTM Journal of Testing and Evaluation, V. 7 Issue 2, February 2010.
Ley, M.T., Folliard, K.J., Hover, K.C., “Observations of air-bubbles escaped from fresh cement paste”, Cement Concrete Research (2009), doi:10.1016/j.cemconres.2009.01.019.
Ley, M.T, Chancey, R., Juenger, M., Folliard, K.J., The physical and chemical characteristics of the shell of air-entrained bubbles in cement paste, Cement Concrete Research (2009), doi:10.1016/j.cemconres.2009.01.018.
Ley, T., Harris, N. J., Folliard, K. J., Hover, K. C.; “Investigation of Required Air Entraining Admixture Dosage in Fly Ash Concrete,” ACI Concrete Materials Journal, Vol. 105, 5,September 2008, pp. 494-498.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part I-Evaluation of the State of Practice,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101601.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part II-Development of a standard test method: apparatus and procedure,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101602.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “The use of the foam index test to predict AEA dosage in concrete containing fly ash: Part III-Development of a standard test method—Proportions of materials,” ASTM Journal of Testing and Evaluation, (2008), doi: 10.1520/JAI101603.
Ley, T., Riding, K., Widianto, W., Bae, S., Breen, J.; “The Use of Strut and Tie Modeling to Predict the Load Carrying Capacity of a Novel Concrete Beam,” ACI Structural Journal, Vol. 106, 6, December 2007, pp. 749-755.
Harris, N.J., Hover, K.C., Folliard, K.J., Ley, T.; “Variables Affecting the ASTM C311 Loss on Ignition Test for Fly Ash,” ASTM Journal of Testing and Evaluation, (2006), doi: 10.1520/JAI100286.
Freeby, G. and Ley, T., “Texas’ Totally Prefabricated Bridge Superstructures”, Transportation Research Board Annual Meeting. Washington, D.C., January, 2005.
Reports
1.Cook, M.D., Seader, J.N., Ley, M.T., Russell, B.W., “Investigation of Optimized Graded Concrete for Oklahoma – Phase 2”, Oklahoma Department of Transportation, 2015.
2.Khanzadeh-Moradllo, M., Sudbrink, B., Ley, M.T., “Expected Life of Silane Water Repellant Treatments on Bridge Decks – Phase 2”, 2015.
3.Khatibmasjedi, M., Hu, Q., Ley, M.T., “Insights In to the Mechanisms of Salt Scaling of High Volume Fly ash in Concrete”, Missouri University Transportation Center, 2014.
4.Cook, D., Ghaeezadah, A., Ley, M.T., “Investigation of Optimized Graded Concrete for Oklahoma Phase I”, FHWA-OK-13-12. Oklahoma Department of Transportation 2014.
5.Ley, M.T., Hajibabbee, A., Khatibmasjedi, M., Development and Implementation of a Mechanistic and Empirical Pavement Design Guide (MEPDG) for Rigid Pavements Phase II. January 2015.
6.Cook, M., Ghazeezadah, A., Ley, M.T.; Investigation of Optimized Graded Concrete for Oklahoma. Oklahoma Transportation Center, July 2013.
7.Aboustait, M., Hu, Q., Frazier, R., Zhang, Y., Tabb, B., Ley, M.T., Hanan, J.; Innovative Performance of Fly Ash Performance in Concrete. Oklahoma Transportation Center, February 2013.
8.Ley, M.T., Tabb, B.; Development of a Robust Field Technique to Quantify the Air-Void Distribution in Fresh Concrete. Oklahoma Transportation Center, July 2013.
9.Ley, M.T., Sudbrink, B.; Investigation of Chloride Profiles in Concrete Cores with m-XRF. Virginia DOT, January 2013.
10.Ley, M.T., Hajibabbee, A., Kadam, S., Frazier, R., Aboustait, M., Ebisch, T., Riding, K.; Development and Implementation of a Mechanistic and Empirical Pavement Design Guide (MEPDG) for Rigid Pavements Phase I. January 2013.
11.Ley, M.T., Woestman, S.; Effect of Y-Cracking on CRCP Performance. December 2012.
12.Ley, M.T., Sudbrink, S., Kotha, H.; Expected Life of Silane Water Repellant Treatments on Bridge Decks. December 2012.
13.Ley, M.T., Cook, D., Fick, G.; Concrete Pavement Mixture Design and Analysis (MDA): Effect of Aggregate Systems on Concrete Mixture Properties. July 2012.
ttp://www.intrans.iastate.edu/research/documents/research-reports/mda_aggregates_w_cvr.pdf
14.Ley, M.T., Felice, R., Freeman, J.M.; Assessment of Air Void System Requirements for Durable Concrete. June 2012. http://www.intrans.iastate.edu/research/documents/research-reports/mda_air_void_w_cvr.pdf
15.Materer, N., Ley, M.T., Apblett, A.; Passive Wireless Corrosion Sensors for Transportation Infrastructure. December 2011, OCTREOS7.1-34.
16.Ley, M.T., Rotithor, H.; Performance of Ultra-Thin Whitetopping (UTW) in Oklahoma. July 2011, ODOT SP&R 2222.
17.Ley, M.T., Ghashgesh, M., Patil, S.; Investigations of a Precast Bridge Deck System. July 2010, OTCREOS7.1-31.
18.Mish, Koehler, Emerson, Goode, Ley, Tyagi,; Development of a Strategy to Recognize, Rehabilitate, and Replace Deficient Bridge Infrastructure. July 2009, FHWA #DTFHG1-06-H-00044.
19.Burgher, B., Thibonnier, A., Folliard, K.J., Ley, M.T., Thomas, M.D.A.; Investigation of the Internal Stresses Caused by Delayed Ettringite Formation in Concrete. November 2008, TxDOT project # 5218.
20.Ley, M.T., Robertson, B.,; Investigation of the Impact of Novel Chemical Admixtures on the Frost Durability of Concrete. October 2008, W.R. Grace report.
21.Folliard, K. J., Harris, N.J., Hover, K.C., Ley, M.T., Navarro, A,; Effects of Texas Fly Ash on Air-Entrainment in Concrete. August 2008, TxDOT project # 5207.
22.Trejo, D., Hite, M., Mander, J., Mander, T., Henley, M., Scott, R., Ley, M.T., Patil, S. Development of a Precast Bridge Deck Overhang System for the Rock Creek Bridge. June 2008, TxDOT project # 6100.
23. Folliard, K. J., Barborak, R., Drimalas, T., Garber, S., Ideker, J., Ley, T., Williams, S., Juengar, M., Thomas, M.D.A.; Preventing ASR/DEF in New Concrete. January 2006, TxDOT project # 4085.
