Jose Pacheco, Ph.D.

Jose Pacheco, Ph.D.

Senior Consultant & Group Director
SKOKIE, IL

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Biography

Dr. Pacheco has expertise in the development of high performance and conventional concrete mixtures for construction; construction troubleshooting; assessment and evaluation of concrete degradation mechanisms; and service life predictions for new and existing concrete structures. His other areas of technical work include moisture and transport properties of concrete, volumetric changes of concrete (creep & shrinkage), internal curing, and advanced characterization techniques. Dr. Pacheco specializes in providing solutions for asset owners, engineering firms, and contractors on several subjects including the selection and evaluation of construction materials, construction troubleshooting, durability performance of existing concrete and steel structures, and the selection of repair and mitigation techniques for extending service life.

Prior to working at CTLGroup, Dr. Pacheco worked at the Dutch Institute of Applied Sciences (TNO) in the Netherlands as a consultant on civil engineering projects. His work focused on concrete durability and degradation, concrete materials evaluation, and concrete repair.

Education

Ph.D. in Civil Engineering

Delft University of Technology, The Netherlands, 2015

Education

M.S. in Civil Engineering

Delft University of Technology, The Netherlands, 2010

Education

B.S.E. in Civil Engineering

Universidad Autónoma de Nuevo León, Mexico, 2008

Publications

Pacheco, J., & Arboleda, C., 2018. Diseño de mezclas de concreto de alto rendimiento con vida útil de más de 100 años. Revista Noticreto Septiembre-Octubre. Asocreto, 22-29

Pacheco, J., & Polder, R. B., 2016. Critical chloride concentrations in reinforced concrete specimens with ordinary Portland and blast furnace slag cement. Heron, 61(2), 99-119.

Polder, R. B., Angst, U. M., Pacheco, J., & Peelen, W. H. 2016. Propagation of pitting corrosion of steel in concrete: Conceptual models for local cross section loss. In Concrete Solutions: Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, Thessaloniki, Greece, 20-23 June 2016 (p. 417). CRC Press.

Mendonça Filho, F. F., Pacheco, J., & Çopuroglu, O. 2015. Semi-and full quantitative EDS microanalysis of chlorine in reinforced mortars subjected to chloride ingress and carbonation. EMABM 2015: Proceedings of the 15th Euroseminar on Microscopy Applied to Building Materials, Delft, The Netherlands, 17-19 June 2015.

Pacheco, J. and O. Çopuroglu. 2015. Quantitative X-ray Microanalysis of Chlorine in Cement Paste. Journal of Materials in Civil Engineering. 10.1061/ (ASCE) MT.1943-5533.0001336, 04015065.

Šavija, B., M. Lukovic, S.A.S. Hosseini, J. Pacheco, and E. Schlangen. 2014. Corrosion Induced Cover Cracking Studied by X-ray Computed Tomography, Nanoindentation, and Energy Dispersive X-ray Spectrometry (EDS). Materials and Structures, 1-20.

Šavija, B., M. Lukovic, S.A.S. Hosseini, J. Pacheco, and E. Schlangen. 2014. Chloride Ingress in Cracked Concrete: A Laser Induced Breakdown Spectroscopy (LIBS) Study. Journal of Advanced Concrete Technology, 12(10), 425-442.

Pacheco, J., B. Šavija, E. Schlangen and R.B. Polder. 2014. Assessment of Cracks in Reinforced Concrete by Means of Electrical Resistance and Image Analysis. Construction and Building Materials, 65, 417-426.

Pacheco, J. B. Šavija, E. Schlangen, and R.B. Polder. 2014. Corrosion of Steel in Cracked Concrete: A Microscale Study. In M.Grantham, P.A.M. Basheer, B.Magee & M. Soutsos (Eds.), Proceedings of Concrete Solutions, 5th International Conference on Concrete Repair. Belfast, Northern Ireland: CRC Press.

Pacheco, J., B. Šavija, E. Schlangen, and R.B. Polder. 2014. Performance Assessment of Cracks in Reinforced Concrete: From Crack Width to Crack Volume. In D Bjegovic & H Beushausen (Eds.), RILEM International Workshop on Performance-Based Specification and Control of Concrete Durability (pp. 419-426). Bagneux, France: RILEM.

Šavija, B., J. Pacheco, E. Schlangen, S. Millar, T. Eichler, and G. Wilsch. 2014. Chloride Ingress in Cracked Concrete Studied using Laser Induced Breakdown Spectroscopy. In K van Breugel & EAB Koenders (Eds.), Proceedings of the 1st international Conference on Ageing of Materials and Structures, AMS’14 (pp. 140-146). Delft, Netherlands: DCMat Ageing Centre.

Šavija, B., J. Pacheco, and E. Schlangen. 2013. Lattice Modeling of Chloride Diffusion in Sound and Cracked Concrete. Cement and Concrete Composites, 42, 30-40.

Šavija, B., M. Lukovi´c, J. Pacheco, and E. Schlangen. 2013. Cracking of the Concrete Cover Due to Reinforcement Corrosion: A Two- Dimensional Lattice Model Study. Construction and Building Materials, 44, 626-638.

Pacheco, J., O. Çopuroglu, and R..B. Polder. 2013. Optimization of Chloride Quantification in Cementitious Mortars using Energy- Dispersive X-ray Analysis. 35th International Conference on Cement Microscopy. International Cement Microscopy Association. Rosemont, IL, USA.

Šavija, B., J. Pacheco, and E. Schlangen. 2013. Lattice Based Simulation of Chloride Ingress in Uncracked and Cracked Concrete: Model Validation. In JGMMier, G Ruiz, C Andrade, RC Yu & X Zhang (Eds.), Proceedings of the VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures (pp. 1941-1952). s.l.: s.n.

Pacheco, J., O. Morales-Nápoles, and R.B. Polder. 2012. Statistical Analysis of Electrical Resistivity as a Tool for Estimating Cement Type of 12-Year-Old Concrete Specimens. In MG Alexander, HD Beusheusen, F Dehn & P Moyo (Eds.), Proceedings 3rd International Conference on Concrete Repair, Rehabilitation, and Retrofitting (pp. 701-706). London, England: CRC Press.

Pacheco, J., B. Šavija, E. Schlangen, and R.B. Polder. 2012. Relationship Between Cracking and Electrical Resistance in Reinforced and Unreinforced Concrete. In Y Guang, K van Breugel, WSun & CMiao (Eds.), RILEM Proceedings pro083: Microstructural-Related Durability of Cementitious Composites, Second International Conference on Microstructural-Related Durability of Cementitious

Composites (pp. 1-8). Bagneux, France: RILEM.

Šavija, B., E. Schlangen, J. Pacheco, and R.B. Polder. 2012. Modified Wedge Splitting Test (MWST): A Simple Tool for Durability Investigations of Reinforcement Corrosion in Cracked Concrete. In MG Alexander, HD Beusheusen, F Dehn & P Moyo (Eds.), Concrete Repair, Rehabilitation, and Retrofitting III: 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR-3 (pp. 386-391). London, England: CRC Press.

Šavija, B., J. Pacheco, E. Schlangen, and R.B. Polder. 2012. Meso-Scale Simulation of Chloride Ingress in Cracked Concrete. In G Ye, K van Breugel, W Sun & C Miao (Eds.), RILEM Proceedings pro083: Microstructural-Related Durability of Cementitious Composites, Second International Conference on Microstructural-Related Durability of Cementitious Composites (pp. 1-8). Bagneux, France: RILEM Publications SARL.

Šavija, B., J. Pacheco, R.B. Polder, and E. Schlangen. 2012. Lattice Model as a Tool for Modelling Transport Phenomena in Cement Based Composites. In P Rossi & JL Tailhan (Eds.), Numerical Modeling Strategies for Sustainable Concrete Structures (pp. 1-8).

Pacheco, J., O. Çopuroglu, B. Šavija, E. Schlangen, and R.B. & Polder. 2012. Assessment of Critical Chloride Content in Reinforced Concrete by Energy Dispersive Spectrometry (EDS) Revisited. In MG Alexander, HD Beusheusen, F Dehn & P Moyo (Eds.), Concrete Repair, Rehabilitation, and Retrofitting III: 3rd International Conference on Concrete Repair, Rehabilitation, and Retrofitting, ICCRRR-3 (pp. 511-516). London, England: CRC Press.

Pacheco, J., R.B. Polder, A.L.A. Fraaij, and J.M.C. & Mol. 2011. Short-term Benefits of Cathodic Protection of Steel in Concrete. In Michael Grantham, Viktor Mechtcherine & Ulrich Schneck (Eds.), Proceedings of Concrete Solutions, 4th International Conference on Concrete Repair, Dresden, Germany (pp. 147-156). Leiden, Netherlands: CRC Press.

Pacheco, J. and R.B. Polder. 2010. Corrosion Initiation and Propagation in Cracked Concrete: A Literature Review. In C Andrade & J Gulikers (Eds.), Advances in Concrete Service Life: Proceedings of 4th RILEM PhD Workshop (pp. 85-94). Bagneux, France: RILEM.

Pacheco, J. and R.B. Polder. 2010. Preliminary Study of Electrochemical Lithium Migration into Cementitious Mortar. In K van Breugel, G Ye & Y. Yuan (Eds.), 2nd International Symposium on Service Life Design for Infrastructure (pp. 1093-1100). Bagneux, France: RILEM publications S.A.R.L.

Pacheco, J., G. Fajardo, and P.L. Valdez. 2010. Carbonation and Chloride Corrosion of Steel Reinforcement in Natural Pozzolan-Vased Mortars. In K. van Breugel, G. Ye & Y. Yuan (Eds.), 2nd International Symposium on Service Life Design for Infrastructure (pp. 673-680). Bagneux, Fracnce: RILEM publications S.A.R.L.

Fajardo, G. P. Valdez, and J. Pacheco. 2009. Corrosion of Steel Rebar Embedded in Natural Pozzolan Based Mortars Exposed to Chlorides. Construction and Building Materials, 23(2), 768-774.

Pacheco, J., G. Fajardo, and P.L. Valdez. 2008. Accelerated Corrosion due to Chlorides and Carbonation in Natural Pozzolan Based Mortars. In 2008 Concrete Bridge Conference. St. Louis, MO, USA.

Affiliations
  • American Concrete Institute
  • International Concrete Repair Institute
  • National Association of Corrosion Engineers
  • RILEM
Award
  • Best MS Thesis in Concrete Repair and Maintenance BENELUX, 2010

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