• J. L. G. Lim Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • S. N. Raman Department of Architecture, Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor, Malaysia
  • R. Hamid Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • M. F. M. Zain Department of Architecture, Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor, Malaysia
  • F. C. Lai Hume Concrete Products Research Centre, 46050 Petaling Jaya, Selangor, Malaysia



Carbon nanotubes (CNT), Ultra-High-Performance Cementitious Composites (UHPCC), Nano-engineered, Microstructure, Mechanical Properties


Ultra-High-Performance Concrete (UHPC) is a type of concrete with unique mechanical and durability characteristics, developed to meet the global demand for extreme construction. Typically, UHPC is produced using customized mix design and subjected to special curing condition. Concrete is a brittle material in nature, where UHPC has its drawbacks in terms of lower tensile strength ratio and brittleness. Carbon nanotubes (CNT) is a potential candidate to act as nano-reinforcement in UHPC matrix, to create a denser and a more ductile Ultra-High-Performance Cementitious Composite (UHPCC) system. The consistent dispersion of CNT in the cementititious matrix is a challenge due to their high aspect ratio and its agglomerating behavior. This paper presents on the fundamental UHPCC mix design which optimizes on its packing density with fewer constituent materials. The mechanical strength and microstructure characteristics of three types of UHPCC developed with CNT, which were produced with different dispersion methods are reported. It was found that stable CNT dispersion enhanced the microstructure characteristics of the UHPCC matrix, and achieved higher compressive and flexural strengths compared to control specimens without CNT.


Raman, S. N. 2012. New Generation Concrete in Construction: 150 MPa and Beyond. In Between: Form + Being (Edited by M. F. Mohamed & S. N. Raman): Faculty of Engineering and Built Environment, UKM, Bangi, Selangor, Malaysia. 120-123.

Jusoh, W. A. W., Ibrahim, I. S., Mohd Sam, A. R., Sarbini, N. N. 2016. Mechanical and Shrinkage Properties of Hybrid Steel and Polypropylene Fibre Reinforced Concrete Composite. Jurnal Teknologi. 78(9): 93-103.

Acker, P., and Behloul, M. 2004 Ductal® Technology: A Large Spectrum of Properties, A Wide Range of Applications. Proceedings, International Symposium on Ultra-High Performance Concrete, Kassel, Germany. 11-23.

Graybeal, B. and Davis, Marshall. 2008 Cylinder or Cube: Strength Testing of 80 to 200 MPa (11.6 to 29 ksi) Ultra-High-Performance Fiber-Reinforced Concrete. ACI Materials Journal. 603-609

Iijima, S. 1991. Helical Microtubules of Graphitic Carbon. Nature. 354: 56-58.

. Siddique, R. and Mehta, A. 2014. Effect of Carbon Nanotubes on Properties of Cement Mortars. Construction and Building Materials. 50: 116-129.

Collins, F., Lambert, J. and Duan, W. H. 2012. The Influences of Admixtures on the Dispersion, Workability, And Strength of Carbon Nanotube–OPC Paste Mixtures. Cement and Concrete Composites. 34: 201-207.

Du, H., Du, S. and Liu, X. 2014. Durability Performances of Concrete with Nano-silica. Construction and Building Materials. 73: 705-712.

Kumar, S., Kolay, P, Malla, S. and Mishra, S. 2012. Effect of Multiwalled Carbon Nanotubes on Mechanical Strength of Cement Paste. ASCE Journal of Materials in Civil Engineering. 24: 84-91.

Chuah, S., Pan, Z., Sanjayan, J. G., Wang, C. M., and Duan, W. H. 2014. Nano Reinforced Cement and Concrete Composites and New Perspective from Graphene Oxide. Construction and Building Materials. 73: 113-124.

Brouwers, H. J. H. and Radix, H. J. 2005. Self-Compacting Concrete: Theoretical and Experimental Study. Cement and Concrete Research. 35(11): 2116-2136.

ASTM International. 2014. Standard Specification for Flow Table for Use in Tests of Hydraulic Cement ASTM C230/C230M-14.

ASTM International. 2013. Standard Test Method for Compressive Strength of Hydraulic Cement Mortars ASTM C109/C109M

ASTM International. 2014. Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars ASTM C348

Mindess, S., Young, J. F., and Darwin D. 2003. Concrete. 2nd Ed. Prentice-Hall, Upper Saddle. United States

Lim, J. L. G., Raman, S. N., Hamid, R., Zain, M. F. M., Lai, F. C. 2015. Synthesis of Ultra-High Performance Cementitious Composite incorporating Carbon Nanotubes. 6th International Conference on Structural Engineering and Construction Management. 15(28): 8-13.

Ali, K., and Mohammadreza, S. 2016. Properties of Carbon Nanotube (CNT) Reinforced Cement. International Journal of Engineering Research. 5(6): 497-503.

Jose, L. F., Campo, J. M., and García, J. A. 2014.Carbon Nanotube-Cement Composites in the Construction Industry: 1952-2014. A State of the Art Review. 2nd International Conference on Emerging Trends in Engineering and Technology. 137-144

Chen, Z., Lim, L. G. J., Yang, E. H. 2016. Ultra High Performance Cement-based Composites Incorporating Low Dosage of Plasma Synthesized Carbon Nanotubes. Materials and Design. 108(2016): 479-487.

Manzur, T., Yazdani, N., and Emon, M. A. B. 2014. Effect of Carbon Nanotube Size on Compressive Strengths of Nanotube Reinforced Cementitious Composites. Journal of Materials. 2014: 1-8.






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