About

HiPer Fiber, LLC was founded in March 2019. Its founding team includes structural, materials and mechanical engineers with more than three decades of combined experience in mixing, casting, and testing open recipe Ultra High Performance Concrete (UHPC) for structural and non-structural applications.

The HiPer Fiber team firmly believes that UHPC is a vastly superior material to the conventional concrete used at present. In particular, UHPC has strong potential for use in structures that will be significantly more durable than currently possible with conventional materials. Therefore, every structure built at the moment using current technology is an opportunity lost to start building a longer lasting infrastructure that is considerably cheaper to maintain in the long run.

With the objective of broadly disseminating information on UHPC technology, we have designed this website to help you mix open recipe UHPC for your projects. Under UHPC, we have listed the information you will need to master open recipe UHPC technology. This information is not warrantied in any way and you agree to use it at your own risk.

Popular Papers Co-Authored by Company Employees

Optimizing UHPC - Concrete International  Field Applications of UHPC - Concrete International  Open Recipe UPHC - Concrete International

 

Reports Co-Authored by Company Employees

UHPC Open Receipt     UHPC Open Recipe

 

Technical Papers Co-Authored by Company Employees

Journal Papers

  • Tai, Y-S, El-Tawil, S., Meng, B. and Hansen, W. (2019), “Effects of the high range water reducer and silica fume on mechanical and durability properties of UHPC,” Submitted for publication in the Journal of Materials in Civil Engineering, ASCE..
  • Tai, Y-S and El-Tawil, S. (2019), “Effect of Component Materials and Mixing Protocol on the Short-Term Performance of Generic Ultra-High-Performance Concrete,” Submitted for publication in the Journal of Construction and Building Materials, Elsevier.
  • Tai, Y-S and El-Tawil, S. (2019), “Computational Investigation of Twisted Fiber Pullout from Ultra High Performance Concrete,” Accepted for publication in the Journal of Construction and Building Materials, Elsevier.
  • Liu, Z., El-Tawil, S., Hansen, W. and Wang, F. (2018), “Effect of Slag Cement on the Properties of Ultra High Performance Concrete (UHPC),” Accepted for Publication in the Journal of Construction and Building Materials, Elsevier.
  • El-Tawil, S., Tai, Y-S., Belcher, J. A. (2018), “Field Application of Non-Proprietary Ultra-High Performance Concrete: Practical Experiences Gained and Lessons Learned,” Concrete International, American Concrete Institute, Farmington Hills, MI, Jan. 2018, pp. 36-42.
  • Tai, Y-S., El-Tawil, S., (2018), “Twisted Fiber Pullout from UHPC: A Computational Study,” Second International Interactive Symposium on Ultra-High Performance Concrete, June 2-5, 2019, Albany, New York
  • Tai, Y-S., El-Tawil, S., Belcher, J. A. (2018), “Durability properties of a generic ultra-high performance concrete mixed in the field,” Second International Interactive Symposium on Ultra-High Performance Concrete, June 2-5, 2019, Albany, New York
  • Tai, Y-S and El-Tawil, S. (2017), “High loading-rate pullout behavior of inclined deformed steel fibers embedded in ultra-high performance concrete,” Volume 148, Journal of Cement and Concrete Research, Elsevier, https://doi.org/10.1016/j.conbuildmat.2017.05.018.
  • Alkaysi, M. and El-Tawil, S. (2017), “Factors Affecting Bond Development between Ultra High Performance Concrete and Steel Bar Reinforcement,” Journal of Construction and Building Materials, Elsevier, 144, pp. 412-422, DOI: http://doi.org/10.1016/j.conbuildmat.2017.03.091.
  • Tai, Y-S., El-Tawil, S. and Chung, T-H. (2017), “Performance of Deformed Steel Fibers Embedded in Ultra-High Performance Concrete Subjected to Various Pullout Rates,” Journal of Cement and Concrete Research, Elsevier, 89(11), pp. 1-13, http://dx.doi.org/10.1016/j.cemconres.2016.07.013.
  • El-Tawil, S (2016), “Advances in non-Proprietary UHPC,” National Concrete Consortium, April 2016, Columbus, Ohio.
  • Pyo, S., El-Tawil, S. and Naaman, A.E. (2016), “Direct Tensile Behavior of Ultra High Performance Fiber Reinforced Concrete (UHP-FRC) at High Strain Rates,” Journal of Cement and Concrete Research, Elsevier, DOI: http://doi.org/10.1016/j.cemconres.2016.07.003.
  • Pyo, S., Alkaysi, M. and El-Tawil, S. (2016), “Crack Propagation Speed In Ultra High Performance Concrete (UHPC),” Journal of Construction and Building Materials, Elsevier, 114(1), DOI: http://doi.org/10.1016/j.conbuildmat.2016.03.148.
  • Alkaysi, M. and El-Tawil, S. (2016), “Effects of Variations in the Mix Constituents of Ultra High Performance Concrete (UHPC) on Cost and Performance,” Materials and Structures, RILEM, 49: 4185. doi:10.1617/s11527-015-0780-6.
  • Alkaysi, M., El-Tawil, S., Liu, Z. and Hansen, W. (2016), “Effects of Silica Powder and Cement Type on Long Term Durability of Ultra High Performance Concrete (UHPC),” Cement and Concrete Composites, 66, pp. 47-56, doi:10.1016/j.cemconcomp.2015.11.005.
  • Wille, K., Xu, M., El-Tawil, S. and Naaman, A.E. (2016), “Dynamic Impact Factors of Strain Hardening UHP-FRC under Direct Tensile Loading at Low Strain Rates,” RILEM Materials and Structures Journal, April 2016, 49(4), pp. 1351–1365, DOI: 10.1617/s11527-015-0581-y.
  • Pyo, S., El-Tawil, S. (2015), “Capturing the Strain Hardening and Softening Responses of Cementitious Composites Subjected to Impact Loading,” Journal of Construction and Building Materials, Elsevier, 81(15), April 2015, pp. 276–283, doi:10.1016/j.conbuildmat.2015.02.028.
  • Pyo, S., Wille, K., El-Tawil, S. and Naaman, A.E. (2014), “Strain Rate Dependent Properties of Ultra High Performance Fiber Reinforced Concrete (UHP-FRC) Under Tension,” J. of Cement and Concrete Composites, Elsevier, 56 (2015), 15-24.
  • Wille, K., El-Tawil, S. and Naaman, A.E. (2014), “Properties of Strain Hardening Ultra High Performance Fiber Reinforced Concrete (UHP-FRC) under Direct Tensile Loading,” Journal of Cement and Concrete Composites, Elsevier, 48, pp. 53-66, doi:10.1016/j.cemconcomp.2013.12.015
  • Pyo, S. and El-Tawil, S. (2013), “Crack velocity-dependent dynamic tensile behavior of concrete”, International Journal of Impact Engineering, V55, pp. 63-70, http://dx.doi.org/10.1016/ j.ijimpeng.2013.01.003.
  • Wille, K., Naaman, A. E. and El-Tawil, S., Parra-Montesinos, G. J. (2012), Ultra-High Performance Concrete and Fiber Reinforced Concrete: Achieving Strength and Ductility without Heat Curing,” Accepted for publication in the RILEM Materials and Structures Journal.
  • Wille, K., Naaman, A. E. and El-Tawil, S. (2011), “Optimizing Ultra High Performance Fiber-Reinforced Concrete,” Concrete International, American Concrete Institute, 33(9), Sept. 2011, pp. 35-41.
  • Kim, D-J, Wille, K., El-Tawil, S. and Naaman, A. E. (2011), “A New Impact Test System Using Elastic Strain Energy,” ASCE Journal of Engineering Mechanics, 137(4), pp. 268-275.
  • Tai, Y-S, Pan H-H, Kung Y-N (2011), ”Mechanical properties of steel fiber reinforced reactive powder concrete following exposure to high temperature reaching 800°C” Nuclear Engineering and Design, 241(7), 2416-2424.
  • Hung, C-C and El-Tawil, S. (2010), “Hybrid Rotating/Fixed-Crack Model for High Performance Fiber Reinforced Cementitious Composites” Materials Journal of the American Concrete Institute, 107(6), pp. 568-576.
  • Kim, D-J, Naaman, A. E. and El-Tawil, S. (2010), “High Performance Fiber Reinforced Cement Composites With Innovative Slip Hardening Twisted Steel Fibers” International Journal of Concrete Structures and Materials, Korean Concrete Institute, ISSN: 1976-0485, 3(2), pp. 119 – 126; DOI 10.4334/IJCSM.2009.3.2.119.
  • Sirijaroonchai, K., El-Tawil, S. and Parra-Montesinos, G., (2010), “Behavior of High Performance Fiber Reinforced Cement Composites under Multi-Axial Compressive Loading,” Journal of Cement and Concrete Composites, Elsevier, 32 (2010), pp. 62-72, DOI: 10.1016/ j.cemconcomp.2009.09.003.
  • Kim, D-J, El-Tawil, S., Sirijaroonchai, K. and Naaman, A. E. (2010), “Numerical Simulation of the Split Hopkinson Pressure Bar Test Technique for Concrete Under Compression,” International Journal of Impact Engineering, 37(2), Pages 141-149.
  • Kim, D-J, El-Tawil, S. and Naaman, A. E. (2009), “Effect of Matrix Strength on Pull-Out Behavior of High Strength Deformed Steel Fibers,” ACI Special Publication in Honor of Prof. Antoine E. Naaman.
  • Kim, D-J, Naaman, A. E. and El-Tawil, S. (2008), “Comparative Flexural Behavior of Four Fiber Reinforced Cementitious Composites,” Journal of Cement and Concrete Composites, Elsevier, Vol. 30, November 2008, pp.917-928.
  • Kim, D-J, El-Tawil, S. and Naaman, A. E. (2008), “Rate-Dependent Tensile Behavior of High Performance Fiber Reinforced Cementitious Composites,” Materials and Structures, RILEM, ISSN 1359-5997 (in print), 1871-6873 (online).
  • Kim, D-J, El-Tawil, S. and Naaman, A. E. (2008), “Loading Rate Effect on Pullout Behavior of Deformed Fibers,” ACI Materials Journal, 105(6), November-December 2008, pp.576-584

Reports

  • El-Tawil, S., Tai, Y-S, Meng, B., Hansen, W. and Liu, Z. (2019), Commercial Production of Non Proprietary Ultra High Performance Concrete, Michigan Department of Transportation, Lansing, MI.
  • El-Tawil, S., Alkaysi, M., Naaman, A.E., Hansen, W. and Liu, Z. (2016), Development, Characterization and Applications of a Non Proprietary Ultra High Performance Concrete for Highway Bridges, Michigan Department of Transportation, Lansing, MI.

Conference Papers

  • Tai, Y-S., El-Tawil, S., Belcher, J. A. (2018), “Twisted Fiber Pullout from UHPC: A Computational Study,” Second International Interactive Symposium on Ultra-High Performance Concrete, June 2-5, 2019, Albany, New York
  • Tai, Y-S., El-Tawil, S., Belcher, J. A. (2018), “Durability properties of a generic ultra-high performance concrete mixed in the field,” Second International Interactive Symposium on Ultra-High Performance Concrete, June 2-5, 2019, Albany, New York
  • Liu, Z., Zhang, X., Wang, F., Hu, C., He, Y., Zhang, Y., El-Tawil, S. and Hansen, W. (2019), “Air Void Characteristics in UHPC and its Relation to Salt Frost Durability,” 2nd International Conference on UHPC Materials and Structures (UHPC2018-China), Fuzhou, China, November 7-10, 2018.
  • Alkaysi, M., Pyo, S. and El-Tawil, S. (2016), “Investigation of Crack speed in Ultra High Performance Concrete (UHPC) Under High Speed Loading Rates,”1st International Interactive Symposium on UHPC, Des Moines, Iowa.
  • Alkaysi, M. and El-Tawil, S. (2016), “Effects of Silica Powder and Cement Type on Durability of Ultra High Performance Concrete (UHPC),”1st International Interactive Symposium on UHPC, Des Moines, Iowa.
  • Alkaysi, M. and El-Tawil, S. (2016), “Bond between Ultra-High Performance Concrete (UHPC) and Steel Bar Reinforcement,”1st International Interactive Symposium on UHPC, Des Moines, Iowa.
  • Alkaysi, M. and El-Tawil, S. (2016), “Bond and Splitting in Bar Pull Out using Ultra High Performance Concrete,”1st International Interactive Symposium on UHPC, Des Moines, Iowa.
  • Alkaysi, M. and El-Tawil, S. (2015), “Structural Response of Bridge Deck Joints Made with Generic UHPC”, Proceedings of the ASCE Structures Congress, May 2015, Portland, OR.
  • Pyo, S., El-Tawil, S., and Naaman, A.E. (2014), “Characteristics of Ultra High Performance Concrete (UHPC) under tension at high strain rates,” 2014 Korea Concrete Institute Conference, Seoul, South Korea.
  • El-Tawil, S., Pyo, S. and Naaman, A.E. (2014), “High Strain Rate Response of UHPC in Direct Tension,” ACI Fall Convention 2014, Washington, DC.
  • Park, P., El-Tawil, S. and Naaman, A. E. (2013), “Indirect Tensile Strength and Toughness of Steel Fiber Reinforced Asphalt Concrete at Low Temperature,” 2013 Conference of the ASCE Engineering Mechanics Institute, August 4 – 7, 2013, Northwestern University, Evanston, IL
  • Pyo, S. and El-Tawil, S. (2013), “Dynamic Fracture Mechanics Based DIF Models for Concrete under Tensile Loading,” 2013 Conference of the ASCE Engineering Mechanics Institute, August 4 – 7, 2013, Northwestern University, Evanston, IL
  • Pyo, S., El-Tawil, S. and Naaman, A.E. (2013), “Parametric Study of a New Impact Testing System for Ultrahigh Performance Concrete in Tension,” 2013 Conference of the ASCE Engineering Mechanics Institute, August 4 – 7, 2013, Northwestern University, Evanston, IL
  • Kim, D. J., Kiet, T. T., El-Tawil, S., and Naaman, A. E. (2012) “Innovative Impact Test System using Elastic Strain Energy,” 4th international conference on design and analysis of protective structures, June 19-22, 2012, in Jeju, Korea
  • Chung Chan, H. and El-Tawil, S. (2012), “Use of HPFRC for Sustainable Seismic Hazard Mitigation,” Numerical Modeling Strategies for Sustainable Concrete Structures, SSCS Conference, Aix en Provence, France, May 29th – June 1st, 2012.
  • Chung Chan, H. and El-Tawil, S. (2012), “Use of HPFRC for Sustainable Structures: Permanent Damage Reduction in the Aftermath of Earthquakes,” FIB Symposium: Concrete Structures for Sustainable Community, Stockholm, Sweden, June 11th – 14th, 2012.
  • Wille, K., El-Tawil, S. and Naaman, A. E. (2011), “Strain Rate Dependent Tensile Behavior of Ultra-High Performance Fiber Reinforced Concrete,” Proceedings of HPFRCC6, H. W. Reinhardt and G. Parra Editors, Ann Arbor, MI.
  • Kim, D-J., Wille, K., Naaman, A. E. and El-Tawil, S. (2011), “Strength Dependent Tensile Behavior of Strain Hardening Fiber Reinforced Concrete,” Proceedings of HPFRCC6, H. W. Reinhardt and G. Parra Editors, Ann Arbor, MI.
  • Hung, C-C. and El-Tawil, S. (2010), “Seismic Behavior of a Wall System With High Performance Fiber Reinforced Cementitiouis Composite Coupling Beams,” Proceedings of the ASCE Structures Congress, May 2010, Orlando, Florida.
  • Kim, D-J., Naaman, A.E. and El-Tawil, S. (2010), “Correlation between Tensile and Bending Behavior of FRC Composites with Scale Effect,” Proceedings of FraMCoS-7, 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures, May 23-28, 2010, Jeju Island, South Korea
  • Hung, C-C and El-Tawil, S. (2010), “Cyclic Model for High Performance Fiber Reinforced Cementitious Composite Structures,” Proceedings of the ATC-SEI conference, Improving the Seismic Performance of Existing Buildings and Other Structures, December 9-11, 2009 San Francisco, CA.
  • Hung, C-C and El-Tawil, S. (2010), “Performance of an 18-Story Coupled Wall System with High Performance Fiber Reinforced Cementitious Composite (HPFRCC) Coupling Beams,” 9th US National & 10th Canadian Conference on Earthquake Engineering, Toronto, CA.
  • El-Tawil, S., Kim, D-J. and Naaman, A. E. (2009) “Impact Testing Using Elastic Strain Energy”, Proceedings of the 2009 NSF Engineering Research and Innovation Conference, Honolulu, Hawaii.
  • Hung, C. C., and El-Tawil, S. (2009), “Development of a numerical material model for high performance fiber reinforced cementitious composites for structural component simulation,” ATC/SEI 2009 Conference on Improving the Seismic Performance of Existing Buildings and Other Structures, San Francisco, CA, 2009.
  • Suwannakarn, S., Naaman, A. E. and El-Tawil, S. (2008), “Stress Versus Crack Opening Displacement Response of FRC Composites with Different Fibers,” 7th RILEM International Symposium on Fiber Reinforced Concrete Design and Applications, Chennai, India, Sept. 17-19, 2008.
  • Kim, D-J., Naaman, A. E. and El-Tawil, S. (2008) “Comparative flexural behavior of four fiber reinforced cementitious composites”, 7th RILEM International Symposium on Fiber Reinforced Concrete Design and Applications, Chennai, India, Sept. 17-19, 2008.
  • Kim, D-J, Naaman, A. E. and El-Tawil, S. (2008), “High Tensile Strength Strain-Hardening FRC Composites with Less Than 2% Fiber Content,” Proceedings of the Second International Symposium on Ultra High Performance Concrete, March 05 – 07, 2008, Kassel, Germany.
  • Sirijaroonchai, K. and El-Tawil, S. (2007), “Three Dimensional Plasticity Model for High Performance Fiber Reinforced Cement Composites,” , Proceedings of HPFRCC5, H. W. Reinhardt and A.E. Naaman Editors, July 10-13, Mainz, Germany.
  • Suwannakarn, S., El-Tawil, S. and Naaman, A. E. (2007), “Experimental Observations on the Tensile Response of Fiber Reinforced Cement Composites with Different Fibers”, Proceedings of HPFRCC5, H. W. Reinhardt and A.E. Naaman Editors, July 10-13, Mainz, Germany.
  • Kim, D-J, El-Tawil, S. and Naaman, A. E. (2007), “Correlation between Single Fiber Pullout and Tensile Response of FRC Composites with High Strength Steel Fibers,” Proceedings of HPFRCC5, H. W. Reinhardt and A.E. Naaman Editors, July 10-13, Mainz, Germany.
  • El-Tawil, S. and Sirijaroonchai, K. (2005), “Vehicle Collision with Bridge Piers,” NSF US-Poland Workshop on Analytical Models and New Concepts in Concrete and Masonry Structures, Ustron, Poland, 2005.

About

HiPer Fiber, LLC was founded in March 2019. Its founding team includes structural, materials and  mechanical engineers with more than three decades of combined experience in mixing, casting, and testing open recipe Ultra High Performance Concrete (UHPC) for structural and non-structural applications.

Contact

sales@hiperfibersolutions.com
330 E. Liberty, Lower Level
Ann Arbor, MI 48104

HiPer Fiber Orange Logo. HiPer Fiber fibers are compliant with the Buy America Act. The fibers are for sale from HiPer Fiber, LLC.