Scholars

Bullard, Jeffrey

Professor

Positions:

Professor, Civil and Environmental Engineering, College of Engineering

education and training

Ph.D. in Materials Science and Engineering, University of California, Berkeley - (Berkeley, California, United States) 1993
M.S. in Materials Science and Engineering, University of California, Berkeley - (Berkeley, California, United States) 1990
B.S. in Ceramic Engineering, Missouri University of Science and Technology - (Rolla, Missouri, United States) 1988

selected publications

Academic Articles90

Wang, J., Huntsinger, W., Lapeyre, J., Schofield, P., Agbeworvi, G., Banerjee, S., & Bullard, J. W. (2024). Sintering kinetics and microstructure development of synthetic lunar highlands and mare regolith. Applied Materials Today. 37, 102145-102145.
Ye, S., Feng, P., Lu, J., Zhao, L., Liu, Q. i., Zhang, Q. i., Liu, J., & Bullard, J. W. (2022). Solubility of tricalcium aluminate from 10 degrees C to 40 degrees C. Cement and Concrete Research. 162, 106989-106989.
Jalal, M., Grasley, Z., Gurganus, C., & Bullard, J. W. (2022). A new nonlinear formulation-based prediction approach using artificial neural network (ANN) model for rubberized cement composite. 38(1), 283-300.
Jalal, M., Grasley, Z., Gurganus, C., & Bullard, J. W. (2022). A new nonlinear formulation-based prediction approach using artificial neural network (ANN) model for rubberized cement composite (Retraction of Vol 38, Pg 283, 2022). Engineering with Computers: an international journal for simulation-based engineering. 1-1.
Jalal, M., Grasley, Z., Gurganus, C., & Bullard, J. W. (2021). Experimental investigation and comparative machine-learning prediction of strength behavior of optimized recycled rubber concrete (Retraction of Vol 256, art no 119478, 2020). Construction and Building Materials. 304, 124704-124704.
Estephane, P., Garboczi, E. J., Bullard, J. W., & Wallevik, O. H. (2021). Using fine sand shape metrics determined from X-ray microcomputed tomography to illustrate the influence of particle shape on the properties of dispersed mortars. Cement and Concrete Composites. 123, 104176-104176.

SDG 6
Bullard, J. W., Jin, Q., & Snyder, K. A. (2021). How do specific surface area and particle size distribution change when granular media dissolve?. Chemical Engineering Journal. 406, 127098-127098.
Jalal, M., Arabali, P., Grasley, Z., Bullard, J. W., & Jalal, H. (2020). Behavior assessment, regression analysis and support vector machine (SVM) modeling of waste tire rubberized concrete. Journal of Cleaner Production. 273, 122960-122960.
Ye, S., Feng, P., Liu, Y., Liu, J., & Bullard, J. W. (2020). Dissolution and early hydration of tricalcium aluminate in aqueous sulfate solutions. Cement and Concrete Research. 137, 106191-106191.
Jalal, M., Grasley, Z., Gurganus, C., & Bullard, J. W. (2020). Experimental investigation and comparative machine-learning prediction of strength behavior of optimized recycled rubber concrete. Construction and Building Materials. 256, 119478-119478.
Oey, T., La Plante, E. C., Falzone, G., Hsiao, Y., Wada, A., Monfardini, L., ... Sant, G. (2020). Calcium nitrate: A chemical admixture to inhibit aggregate dissolution and mitigate expansion caused by alkali-silica reaction. Cement and Concrete Composites. 110, 103592-103592.
Oey, T., La Plante, E. C., Falzone, G., Yang, K., Wada, A., Bauchy, M., Bullard, J. W., & Sant, G. (2020). Topological controls on aluminosilicate glass dissolution: Complexities induced in hyperalkaline aqueous environments. Journal of The American Ceramic Society. 103(11), 6198-6207.
Ye, S., Feng, P., Liu, Y., Liu, J., & Bullard, J. W. (2020). In situ nano-scale observation of C(3)A dissolution in water. Cement and Concrete Research. 132, 106044-106044.
Feng, P., Ye, S., Martys, N. S., & Bullard, J. W. (2020). Hydrodynamic factors influencing mineral dissolution rates. Chemical Geology. 541, 119578-119578.
Brand, A. S., Feldman, S. B., Stutzman, P. E., Ievlev, A. V., Lorenz, M., Pagan, D. C., ... Bullard, J. W. (2020). Dissolution and initial hydration behavior of tricalcium aluminate in low activity sulfate solutions. Cement and Concrete Research. 130, 105989-105989.
Jalal, M., Arabali, P., Grasley, Z., & Bullard, J. W. (2020). Application of adaptive neuro-fuzzy inference system for strength prediction of rubberized concrete containing silica fume and zeolite (Retracted article. See vol. 236, pg. 451, 2022). Proceedings of the Institution of Mechanical Engineers Part L: Journal of Materials, Design and Applications. 234(3), 438-451.
Jin, Q., Perry, L. N., & Bullard, J. W. (2020). Temperature dependence of gypsum dissolution rates. Cement and Concrete Research. 129, 105969-105969.
Oey, T., Jones, S., Bullard, J. W., & Sant, G. (2020). Machine learning can predict setting behavior and strength evolution of hydrating cement systems. Journal of The American Ceramic Society. 103(1), 480-490.
Bullard, J. W., Garboczi, E. J., Stutzman, P. E., Feng, P., Brand, A. S., Perry, L., ... Terrill, J. E. (2019). Measurement and modeling needs for microstructure and reactivity of next-generation concrete binders. Cement and Concrete Composites. 101, 24-31.
Kim, T., Hu, Q., Ley, M. T., Aboustait, M., & Bullard, J. W. (2019). Using Particle Characterization to Study Fly Ash Dissolution and Leaching in Water and KOH Solution. ACI Materials Journal. 116(4), 5-17.
Brand, A. S., Gorham, J. M., & Bullard, J. W. (2019). Dissolution rate spectra of beta-dicalcium silicate in water of varying activity. Cement and Concrete Research. 118, 69-83.
Estephane, P., Garboczi, E. J., Bullard, J. W., & Wallevik, O. H. (2019). Three-dimensional shape characterization of fine sands and the influence of particle shape on the packing and workability of mortars. Cement and Concrete Composites. 97, 125-142.

SDG 6
La Plante, E. C., Oey, T., Hsiao, Y., Perry, L., Bullard, J. W., & Sant, G. (2019). Enhancing Silicate Dissolution Kinetics in Hyperalkaline Environments. Journal of Physical Chemistry C. 123(6), 3687-3695.
Tang, J., Bullard, J. W., Perry, L. N., Feng, P., & Liu, J. (2018). An empirical rate law for gypsum powder dissolution. Chemical Geology. 498, 96-105.
Li, X., Grasley, Z. C., Bullard, J. W., & Feng, P. (2018). Creep and relaxation of cement paste caused by stress-induced dissolution of hydrated solid components. Journal of The American Ceramic Society. 101(9), 4237-4255.
Bullard, J. W., Hagedorn, J., Ley, M. T., Hu, Q., Griffin, W., & Terrill, J. E. (2018). A Critical Comparison of 3D Experiments and Simulations of Tricalcium Silicate Hydration.. Journal of The American Ceramic Society. 101(4), 1453-1470.
Li, X., Grasley, Z. C., Garboczi, E. J., & Bullard, J. W. (2017). Simulation of the Influence of Intrinsic C-S-H Aging on Time-Dependent Relaxation of Hydrating Cement Paste.. Construction and Building Materials. 157, 1024-1031.
Feng, P., Bullard, J. W., Garboczi, E. J., & Miao, C. (2017). A multiscale microstructure model of cement paste sulfate attack by crystallization pressure. 25(6), 065013-065013.
Brand, A. S., Feng, P., & Bullard, J. W. (2017). Calcite dissolution rate spectra measured by in situ digital holographic microscopy.. GEOCHIMICA ET COSMOCHIMICA ACTA. 213, 317-329.
Brand, A. S., & Bullard, J. W. (2017). Dissolution Kinetics of Cubic Tricalcium Aluminate Measured by Digital Holographic Microscopy.. Langmuir. 33(38), 9645-9656.
Oey, T., Kumar, A., Pignatelli, I., Yu, Y., Neithalath, N., Bullard, J. W., Bauchy, M., & Sant, G. (2017). Topological controls on the dissolution kinetics of glassy aluminosilicates. Journal of The American Ceramic Society. 100(12), 5521-5527.
Biernacki, J. J., Bullard, J. W., Sant, G., Banthia, N., Brown, K., Glasser, F. P., ... Prater, T. (2017). Cements in the 21st Century: Challenges, Perspectives, and Opportunities.. Journal of The American Ceramic Society. 100(7), 2746-2773.
Kumar, A., Oey, T., Falzone, G., Huang, J., Bauchy, M., Balonis, M., ... Sant, G. (2017). The filler effect: The influence of filler content and type on the hydration rate of tricalcium silicate. Journal of The American Ceramic Society. 100(7), 3316-3328.
Oey, T., Timmons, J., Stutzman, P., Bullard, J. W., Balonis, M., Bauchy, M., & Sant, G. (2017). An improved basis for characterizing the suitability of fly ash as a cement replacement agent. Journal of The American Ceramic Society. 100(10), 4785-4800.
Feng, P., Brand, A. S., Chen, L., & Bullard, J. W. (2017). In situ nanoscale observations of gypsum dissolution by digital holographic microscopy.. Chemical Geology. 460, 25-36.
Li, X., Grasley, Z. C., Bullard, J. W., & Garboczi, E. J. (2017). Irreversible desiccation shrinkage of cement paste caused by cement grain dissolution and hydrate precipitation. Materials and Structures/Materiaux et Constructions. 50(2), 104.
Garboczi, E. J., & Bullard, J. W. (2017). 3D analytical mathematical models of random star-shape particles via a combination of X-ray computed microtomography and spherical harmonic analysis. Advanced Powder Technology. 28(2), 325-339.
Bullard, J. W., & Scherer, G. W. (2016). An Ideal Solid Solution Model for C-S-H.. Journal of The American Ceramic Society. 99(12), 4137-4145.
Hu, Q., Aboustait, M., Kim, T., Ley, M. T., Bullard, J. W., Scherer, G., ... Gelb, J. (2016). Direct Measurements of 3D Structure, Chemistry and Mass Density During the Induction Period of C3S Hydration.. Cement and Concrete Research. 89, 14-26.
Hu, Q., Aboustait, M., Kim, T., Ley, M. T., Hanan, J. C., Bullard, J., Winarski, R., & Rose, V. (2016). Direct three-dimensional observation of the microstructure and chemistry of C3S hydration.. Cement and Concrete Research. 88, 157-169.
Oey, T., Kumar, A., Falzone, G., Huang, J., Kennison, S., Bauchy, M., ... Sant, G. (2016). The Influence of Water Activity on the Hydration Rate of Tricalcium Silicate. Journal of The American Ceramic Society. 99(7), 2481-2492.
Feng, P., Miao, C., & Bullard, J. W. (2016). Factors influencing the stability of AFm and AFt in the Ca-Al-S-O-H system at 25 C.. Journal of The American Ceramic Society. 99(3), 1031-1041.
Stutzman, P. E., Feng, P., & Bullard, J. W. (2016). Phase Analysis of Portland Cement by Combined Quantitative X-Ray Powder Diffraction and Scanning Electron Microscopy.. Journal of Research of the National Institute of Standards and Technology. 121, 47-107.
Feng, P., Garboczi, E. J., Miao, C., & Bullard, J. W. (2015). Microstructural Origins of Cement Paste Degradation by External Sulfate Attack.. Construction and Building Materials. 96, 391-403.
Bullard, J. W., Scherer, G. W., & Thomas, J. J. (2015). Time dependent driving forces and the kinetics of tricalcium silicate hydration. Cement and Concrete Research. 74, 26-34.
Stoian, J., Oey, T., Bullard, J. W., Huang, J., Kumar, A., Balonis, M., ... Sant, G. (2015). New insights into the prehydration of cement and its mitigation. Cement and Concrete Research. 70, 94-103.
Li, X., Grasley, Z. C., Bullard, J. W., & Garboczi, E. J. (2015). Computing the time evolution of the apparent viscoelastic/viscoplastic Poisson's ratio of hydrating cement paste. Cement and Concrete Composites. 56, 121-133.
Li, X., Grasley, Z. C., Garboczi, E. J., & Bullard, J. W. (2015). Modeling the apparent and intrinsic viscoelastic relaxation of hydrating cement paste. Cement and Concrete Composites. 55, 322-330.
Valentini, L., Parisatto, M., Russo, V., Ferrari, G., Bullard, J. W., Angel, R. J., Dalconi, M. C., & Artioli, G. (2014). Simulation of the hydration kinetics and elastic moduli of cement mortars by microstructural modelling. Cement and Concrete Composites. 52, 54-63.
Feng, P., Miao, C., & Bullard, J. W. (2014). A model of phase stability, microstructure and properties during leaching of portland cement binders. Cement and Concrete Composites. 49, 9-19.
Bullard, J. W., & Garboczi, E. J. (2013). Defining shape measures for 3D star-shaped particles: Sphericity, roundness, and dimensions. Powder Technology. 249, 241-252.
Artioli, G., & Bullard, J. W. (2013). Cement hydration: the role of adsorption and crystal growth. Crystal Research and Technology: journal of experimental and industrial crystallography. 48(10), 903-918.
Oey, T., Kumar, A., Bullard, J. W., Neithalath, N., & Sant, G. (2013). The Filler Effect: The Influence of Filler Content and Surface Area on Cementitious Reaction Rates. Journal of The American Ceramic Society. 96(6), 1978-1990.
Garboczi, E. J., & Bullard, J. W. (2013). Contact function, uniform-thickness shell volume, and convexity measure for 3D star-shaped random particles. Powder Technology. 237, 191-201.
Spragg, R., Villani, C., Snyder, K., Bentz, D., Bullard, J. W., & Weiss, J. (2013). Factors That Influence Electrical Resistivity Measurements in Cementitious Systems. Transportation Research Record. 2342(2342), 90-98.
Bullard, J. W., Jennings, H. M., Livingston, R. A., Nonat, A., Scherer, G. W., Schweitzer, J. S., Scrivener, K. L., & Thomas, J. J. (2011). Mechanisms of cement hydration. Cement and Concrete Research. 41(12), 1208-1223.
Thomas, J. J., Biernacki, J. J., Bullard, J. W., Bishnoi, S., Dolado, J. S., Scherer, G. W., & Luttge, A. (2011). Modeling and simulation of cement hydration kinetics and microstructure development. Cement and Concrete Research. 41(12), 1257-1278.
Flatt, R. J., Scherer, G. W., & Bullard, J. W. (2011). Why alite stops hydrating below 80% relative humidity. Cement and Concrete Research. 41(9), 987-992.
Jennings, H. M., & Bullard, J. W. (2011). From electrons to infrastructure: Engineering concrete from the bottom up. Cement and Concrete Research. 41(7), 727-735.
Bullard, J. W., Lothenbach, B., Stutzman, P. E., & Snyder, K. A. (2011). Coupling thermodynamics and digital image models to simulate hydration and microstructure development of portland cement pastes. Journal of Materials Research. 26(4), 609-622.
Bullard, J. W., Enjolras, E., George, W. L., Satterfield, S. G., & Terrill, J. E. (2010). A parallel reaction-transport model applied to cement hydration and microstructure development. Modelling and Simulation in Materials Science and Engineering. 18(2), 025007-025007.
Bullard, J. W., & Flatt, R. J. (2010). New Insights Into the Effect of Calcium Hydroxide Precipitation on the Kinetics of Tricalcium Silicate Hydration. Journal of The American Ceramic Society. 93(7), 1894-1903.
Holzer, L., Flatt, R. J., Erdogan, S. T., Bullard, J. W., & Garboczi, E. J. (2010). Shape Comparison between 0.4-2.0 and 20-60 mu m Cement Particles. Journal of The American Ceramic Society. 93(6), 1626-1633.
Bullard, J. W., Pauli, A. T., Garboczi, E. J., & Martys, N. S. (2009). A comparison of viscosity-concentration relationships for emulsions.. Journal of Colloid and Interface Science. 330(1), 186-193.
Bullard, J. W., & Garboczi, E. J. (2009). Capillary rise between planar surfaces.. Physical Review E: Statistical, Nonlinear, and Soft Matter Physics. 79(1 Pt 1), 011604.
Bullard, J. W. (2008). A determination of hydration mechanisms for tricalcium silicate using a kinetic cellular automaton model. Journal of The American Ceramic Society. 91(7), 2088-2097.
Jennings, H. M., Bullard, J. W., Thomas, J. J., Andrade, J. E., Chen, J. J., & Scherer, G. W. (2008). Characterization and modeling of pores and surfaces in cement paste: Correlations to processing and properties. Journal of Advanced Concrete Technology. 6(1), 5-29.
Bullard, J. W. (2007). A three-dimensional microstructural model of reactions and transport in aqueous mineral systems. Modelling and Simulation in Materials Science and Engineering. 15(7), 711-738.
Bullard, J. W. (2007). Approximate rate constants for nonideal diffusion and their application in a stochastic model.. Journal of Physical Chemistry A. 111(11), 2084-2092.
Bullard, J. W., & Stutzman, P. E. (2007). Analysis of CCRL proficiency cements 151 and 152 using the virtual cement and concrete testing laboratory (vol 8, pg 1548, 2006). Cement and Concrete Research. 37(2), 291-292.
Bullard, J. W. (2006). Coarse-graining approximation for simulating surface reaction kinetics in particulate systems. Computational Materials Science. 38(2), 369-373.
Bullard, J. W., & Stutzman, P. E. (2006). Analysis of CCRL proficiency cements 151 and 152 using the virtual cement and concrete testing laboratory. Cement and Concrete Research. 36(8), 1548-1555.
Bullard, J. W., & Garboczi, E. J. (2006). A model investigation of the influence of particle shape on portland cement hydration. Cement and Concrete Research. 36(6), 1007-1015.
Haecker, C., Garboczi, E. J., Bullard, J. W., Bohn, R. B., Sun, Z., Shah, S. P., & Voigt, T. (2005). Modeling the linear elastic properties of Portland cement paste. Cement and Concrete Research. 35(10), 1948-1960.
Garboczi, E. J., & Bullard, J. W. (2004). Shape analysis of a reference cement. Cement and Concrete Research. 34(10), 1933-1937.
Bullard, J. W. (2004). Stability of voids formed in cavities at liquid-solid interfaces.. Journal of Colloid and Interface Science. 276(1), 188-196.

SDG 7
Thayer, R. L., Schmidt, S. R., Dorris, S. E., Bullard, J. W., & Lanagan, M. T. (2000). Reactive sintering and retrograde densification of bulk bismuth-based superconductors. Journal of The American Ceramic Society. 83(10), 2365-2368.
Bullard, J. W., & Menon, M. (1999). Equilibrium Shapes of Solid Particles on Elastically Mismatched Substrates.. Journal of Colloid and Interface Science. 219(2), 320-326.
Bullard, J. W., & Searcy, A. W. (1999). Equilibria and kinetics of mass transport between crystal facets: A comparison of two models. 47(10), 3057-3061.
Menon, M., & Bullard, J. W. (1999). Constrained phase evolution in gel-derived thin films of magnesium oxide. Journal of Materials Chemistry. 9(4), 949-953.
Bullard, J. W., Garboczi, E. J., & Carter, W. C. (1998). Interplay of capillary and elastic driving forces during microstructural evolution: Applications of a digital image model. Journal of Applied Physics. 83(8), 4477-4486.
Bullard, J. W. (1997). Numerical simulations of transient-stage Ostwald ripening and coalescence in two dimensions. Materials Science & Engineering: A. 238(1), 128-139.
Bullard, J. W. (1997). Digital-image-based models of two-dimensional microstructural evolution by surface diffusion and vapor transport. Journal of Applied Physics. 81(1), 159-168.

SDG 3
Bullard, J. W., & Searcy, A. W. (1997). Microstructural development during sintering of lithium fluoride. Journal of The American Ceramic Society. 80(9), 2395-2400.
Bullard, J. W., & Garboczi, E. J. (1996). A lattice model for solid-state sintering: Simple particle arrays - Comment. Computational Materials Science. 6(4), 350-352.
Searcy, A. W., Bullard, J. W., & Carter, W. C. (1996). Possible explanations of transient neck formation between pairs of{100} faceted particles. Journal of The American Ceramic Society. 79(9), 2443-2451.
BULLARD, J. W., GARBOCZI, E. J., CARTER, W. C., & FULLER, E. R. (1995). NUMERICAL-METHODS FOR COMPUTING INTERFACIAL MEAN-CURVATURE. Computational Materials Science. 4(2), 103-116.
BULLARD, J. W., GLAESE, A. M., & SEARCY, A. W. (1994). SHAPE CHANGES BY (100) LITHIUM-FLUORIDE RIDGE-CHANNEL ARRAYS AND OF LITHIUM-FLUORIDE PARTICLES AT SINTERING TEMPERATURES. Journal of The American Ceramic Society. 77(9), 2319-2326.
SEARCY, A. W., & BULLARD, J. W. (1994). THERMODYNAMICS AND KINETICS OF SURFACE-AREA CHANGES OF FACETED PARTICLES. Journal of The American Ceramic Society. 77(9), 2314-2318.
Han, Y., Lapeyre, J., Van Dam Levy, N., Ucak-Astarlioglu, M. G., Burroughs, J. F., & Bullard, J. W. Dissolution kinetics of densified and undensified silica fume in a KOH solution at pH 13 and 23C. Cement and Concrete Research. 183, 107586-107586.

Chapters2

Terrill, J., George, W., Griffin, T., Hagedorn, J., Kelso, J., Olano, M., ... Haemer, G. (2009). Extending Measurement Science to Interactive Visualization Environments. TRENDS IN INTERACTIVE VISUALIZATION: STATE-OF-THE-ART SURVEY. 287-302. Springer Nature.
Searcy, A. W., Bullard, J. W., & Beruto, D. (1998). Influences of Interparticle Stresses on Intermediate-Stage Densification and Grain Growth. Ceramic Microstructures. 247-254. Springer Nature.