Dr Cristian Maluk Zedan

Lecturer

School of Civil Engineering
Faculty of Engineering, Architecture and Information Technology
c.maluk@uq.edu.au
+61 7 336 53518

Overview

Cristián Maluk joined The University of Queensland in 2015 as Lecturer of Civil Engineering. His background is in structural fire engineering and in the broader scope of fire safety science. His research interests are in the fire performance of building construction materials and the resilience of structural systems during and after fire. Cristian has coordinated and contribute towards research studies in the fire safe design of structural concrete systems prestressed with fibre reinforced polymer tendons, heat-induced concrete spalling, performance of intumescent coatings under non-standard heating regimes, and developing novel fire testing methods.

Teaching and Learning

  • Introduction to Fire Safety Engineering
  • Fire Design for Implicit Safety
  • Fire Dynamics Laboratory
  • Structural Fire Engineering
  • Introduction to Structural Design
  • Engineering of Small Buildings

Awards

  • Best Paper Award at the 2nd Postgraduate Conference on Scotland Infrastructure and Environment, Edinburgh, UK, 2014.
  • Best Poster Award at the 11th International Symposium on Fire Safety Science (IAFSS), Christchurch, New Zealand, 2014.
  • Recipient of the John Moyes Lessells Scholarship from The Royal Society of Edinburgh, Edinburgh, UK, 2013.
  • Recipient of the Training School Travel Grant for Young Researchers on Integrated Fire Engineering and Response (COST TU0904) – Key Issues for the Future of Fire Engineering, Naples, Italy, 2013.
  • Best Poster Award at the 10th International Symposium on Fire Safety Science (IAFSS), Maryland, USA, 2011.

Research Interests

  • Fire performance
    Fire performance of building construction materials and the resilience of structural systems during and after fire.

Qualifications

  • Bachelor of Science, Civil Engineering, Pontifical Catholic University of Chile
  • Master of Science (Hons), Structural Engineering, Pontifical Catholic University of Chile
  • Doctor of Philosophy, University of Edinburgh

Publications

View all Publications

Grants

View all Grants

Supervision

  • Master Philosophy

  • Doctor Philosophy

  • Doctor Philosophy

View all Supervision

Available Projects

  • Spalling during or after fire, occurs when the exposed surface of heated concrete flakes away in a sudden and violent manner. The propensity for fire-induced concrete spalling presents a serious concern in the context of the historical approach to fire safe design of concrete structures, where engineers typically rely on concrete’s inherent fire safety characteristics (e.g. non-combustibility, non-flammability, high thermal inertia).

    This project aims at investigating the occurrence of fire-induced concrete spalling and its effects in the structural fire performance of concrete structures (building or tunnel applications). This project will experimentally investigate the occurrence of fire-induced concrete spalling and propose simple, rather than complex, design methods to incorporate the risk of spalling in the design of fire safe concrete structures. The project will also propose design methods (analytical or numerical) for incorporating the effects of spalling on the load-bearing capacity of concrete structures during and after fire.

  • Conventional load-bearing floor systems consisting of cross laminated timber (CLT) panels that span between shear walls at the core of floor-plans, spandrel beams, and columns have restricted span capacities (fire or serviceability). The principles of floor timber systems replicate those of a traditional reinforced concrete flat plate systems where the ends of the floor panels are restrained from rotation by walls and column. Regarding structural fire performance, there are key gaps on how timber floor panels behave during or after fire. Fire-induced failure mechanisms of CLT systems are induced by reduction of the members’ cross section (charring and/or delamination) or weakening of the connecting conditions.

    This project aims at investigating the fire performance of floor timber systems and proposing a prototype CLT composite floor system with enhanced structural load-bearing capacity during and after fire. This project will study the potential of novel timber floor systems with enhanced fire performance. This will be done by introducing elements that allow for improved composite action of the structural system; e.g. additional anchoring to improve connection performance during fire, lamellas of material with higher residual capacity to compensate strength loss due to charring of timber.

View all Available Projects

Publications

Journal Article

Conference Publication

  • Le, Q. X., Dao, V. T. N., Maluk, C., Torero, J. and Bisby, L. (2017). An investigation into temperature gradient effects on concrete performance at elevated temperatures. In: Hong Hao and Chunwei Zhang, Mechanics of Structures and Materials: Advancements and Challenges. 24th Australasian Conference on the Mechanics of Structures and Materials, Perth, WA, Australia, (951-956). 6-9 December 2016. doi:10.1201/9781315226460-147

  • Maluk, Cristian, Clark, Todd and Ridout, Andrew (2017). Fire Behaviour of Fibre Reinforced Concrete Mixes – Macro and micro fibres. In: Proceedings: 16th Australasian Tunnelling Conference: Challenging Underground Space: Bigger, better, more. 16th Australasian Tunnelling Conference 2017, Sydney, Australia, (). 30 October - 1 November 2017.

  • Maluk, Cristian (2016). Concrete fire testing-A review of the thermal boundary conditions. In: Concrete under Severe Conditions - Environment and Loading. 8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016, Lecco, , (496-503). September 12, 2016-September 14, 2016. doi:10.4028/www.scientific.net/KEM.711.496

  • Le, Quang Xuan, Dao, Vinh The Ngoc, Maluk, Cristian, Bisby, Luke and Torero, Jose Luis (2016). Constitutive models of concrete at elevated temperatures: studying the effect of temperature gradients. In: Maria E. Moreyra Garlock and Venkatesh K. R. Kodur, Structures in Fire: Proceedings of the Ninth International Conference. International Conference on Structures in Fire, Princeton, NJ, United States, (257-264). 8-10 June 2016.

  • Maluk, Cristian, Bisby, Luke and Terrasi, Giovanni Pietro (2016). Explosive Concrete Spalling During Large-Scale Fire Resistance Test. In: Garlock, Maria E., Structures in Fire: Proceedings of the Ninth International Conference. 9th International Conference on Structures in Fire (SiF), Princeton, NJ, United States, (225-232). 8-10 June 2016.

  • Rickard, Ieuan, Bisby, Luke, Deeny, Susan and Maluk, Cristian (2016). Predictive Testing for Heat Induced Spalling of Concrete Tunnels-The Influence of Mechanical Loading. In: Garlock, Maria E., Structures in Fire: Proceedings of the Ninth International Conference. 9th International Conference on Structures in Fire (SiF), Princeton, NJ, United States, (217-224). 8-10 June 2016.

  • Terrasi, Giovanni P., Gao, Jing, Maluk, Cristian H. and Bisby, Luke (2015). Fire experiments of thin-walled cfrp pretensioned high strength concrete slabs under service load. In: ICCM 2015 - 20th International Conference on Composite Materials. 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, , (). July 19, 2015-July 24, 2015.

  • Maluk, Cristian, Bisby, Luke and Terrasi, Giovanni (2015). Outcomes from a broad study on the performance of thin CFRP prestressed concrete slabs in fire. In: Dilum Fernando, Jin-Guang Teng and Jose L. Torero, Proceedings of the Second International Conference on Performance-based and Life-cycle Structural Engineering (PLSE 2015). International Conference on Performance-based and Life-cycle Structural Engineering, Brisbane, QLD, Australia, (953-962). 9-11 December 2015. doi:10.14264/uql.2016.417

  • Rickard, Ieuan, Maluk, Cristian, Bisby, Luke and Deeny, Susan (2015). Predictive testing for heat-induced spalling of concrete. In: IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges - Report. IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges , Geneva Switzerland, (929-936). 23-25 September 2015.

  • Maluk, C., Terrasi, G. P., Bisby, L. A., Stutz, A. and Hugi, E. (2014). Experimental fire behaviour of precast CFRP pretensioned HPSCC slabs. In: Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014. 7th International Conference on FRP Composites in Civil Engineering, CICE 2014, Vancouver, Canada, (). 20-22 August 2014.

  • Maluk, C., Bisby, L. A. and Terrasi, G. P. (2014). Thermo-mechanical compatibility of CFRP versus steel reinforcement for concrete at high temperature. In: Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014. 7th International Conference on FRP Composites in Civil Engineering, CICE 2014, Vancouver, Canada, (). 20-22 August 2014.

  • Maluk, C., Bisby, L. and Terrasi, G. (2013). Effects of polypropylene fibre type on occurrence of heat-induced concrete spalling. In: Concrete Spalling Due to Fire Exposure: Proceedings of the 3rd International Workshop, IWCS 2013. 3rd International Workshop on Concrete Spalling Due to Fire Exposure, IWCS 2013, Paris, (Article No. 01005-Article No. 01005). 25-27 September 2013. doi:10.1051/matecconf/20130601005

  • Terrasi, Giovanni P., Maluk, Cristian H., Bisby, Luke A., Hugi, Erich and Kanik, Birol (2012). Fire experiments of thin-walled CFRP pretensioned high strength concrete slabs under service load. In: 6th International Conference on FRP Composites in Civil Engineering, CICE 2012, Rome, Italy, (). 13-15 June 2012.

  • Gales, John, Maluk, Cristián and Bisby, Luke (2012). Large-scale Structural Fire Testing-How did we get here, Where are we, and Where are we going?. In: J. F. Silva Gomes and Mario A. P. Vaz, Proceedings of the 15th International conference on experimental mechanics: Fire symposium. 15th International Conference on Experimental Mechanics, Portugal, (). 22-27 July 2012.

  • Maluk, C., Bisby, L., Terrasi, G., Krajcovic, M. and Torero, J. L. (2012). Novel Fire Testing Methodology: Why, how and what now?. In: Proceedings of the Mini Symposium on Performance-based Fire Safety Engineering of Structures as part of the 1st International Conference on Performance Based land Life Cycle Structural Engineering. 1st International Conference on Performance Based land Life Cycle Structural Engineering, Hong Kong, (448-458). 5-7 December 2012.

  • Maluk, Cristian, Bisby, Luke, Terrasi, Giovanni and Green, Mark (2011). Bond strength of CFRP and steel bars in concrete at elevated temperature. In: Venkatesh Kodur, Innovations in fire design of concrete structures : papers presented at the ACI Fall 2008 Convention. ACI Fall 2008 Convention, St. Louis, MO United States, (41-75). 2-6 November 2008.

  • Maluk, C., Bisby, L., Terrasi, G. and Hugi, E. (2010). Bond strength degradation for prestressed steel and carbon FRP bars in high-performance self-consolidating concrete at elevated temperatures and in fire. In: Structures in Fire - Proceedings of the Sixth International Conference, SiF'10. 6th International Conference on Structures in Fire, SiF'10, , , (743-750). June 2, 2010-June 4, 2010.

Grants (Administered at UQ)

PhD and MPhil Supervision

Note for students: Dr Cristian Maluk Zedan is not currently available to take on new students.

Current Supervision

  • Master Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

Possible Research Projects

Note for students: The possible research projects listed on this page may not be comprehensive or up to date. Always feel free to contact the staff for more information, and also with your own research ideas.

Dr Cristian Maluk Zedan is not currently available to take on new students.

  • Spalling during or after fire, occurs when the exposed surface of heated concrete flakes away in a sudden and violent manner. The propensity for fire-induced concrete spalling presents a serious concern in the context of the historical approach to fire safe design of concrete structures, where engineers typically rely on concrete’s inherent fire safety characteristics (e.g. non-combustibility, non-flammability, high thermal inertia).

    This project aims at investigating the occurrence of fire-induced concrete spalling and its effects in the structural fire performance of concrete structures (building or tunnel applications). This project will experimentally investigate the occurrence of fire-induced concrete spalling and propose simple, rather than complex, design methods to incorporate the risk of spalling in the design of fire safe concrete structures. The project will also propose design methods (analytical or numerical) for incorporating the effects of spalling on the load-bearing capacity of concrete structures during and after fire.

  • Conventional load-bearing floor systems consisting of cross laminated timber (CLT) panels that span between shear walls at the core of floor-plans, spandrel beams, and columns have restricted span capacities (fire or serviceability). The principles of floor timber systems replicate those of a traditional reinforced concrete flat plate systems where the ends of the floor panels are restrained from rotation by walls and column. Regarding structural fire performance, there are key gaps on how timber floor panels behave during or after fire. Fire-induced failure mechanisms of CLT systems are induced by reduction of the members’ cross section (charring and/or delamination) or weakening of the connecting conditions.

    This project aims at investigating the fire performance of floor timber systems and proposing a prototype CLT composite floor system with enhanced structural load-bearing capacity during and after fire. This project will study the potential of novel timber floor systems with enhanced fire performance. This will be done by introducing elements that allow for improved composite action of the structural system; e.g. additional anchoring to improve connection performance during fire, lamellas of material with higher residual capacity to compensate strength loss due to charring of timber.