Document Type : Research Paper


1 Civil Engineering Dept., University of Technology-Iraq, Alsina’a street,10066 Baghdad, Iraq.

2 Highways and Transportation Engineering Dept., Mustansiriayah University, Baghdad, Iraq.


Multifunctional Cementitious Composite (MCC) characteristics are directly related to the type and dosage of the Electrically Conductive Materials (ECMs) reinforcing the relevant concrete matrices. This study investigated the electro-mechanical capacities of fiber reinforced concrete pavement (FRCP) with and without the addition of micro scale-carbon fiber (CF). The impact energy of FRCP under compacted load was evaluated initially; then, the effects of 0.5% and 1% content by volume of CF on the piezoresistivity capacities of FRCP were investigated under applied impact load. This type of load is the most common force causing long-term rigid pavement deterioration. Obtained results showed that the use of a hybrid fiber (micro-scale carbon fiber 0.5% and macro-scale steel fiber 1% by volume) enhanced the impact strength (impact energy) due to CF’s resistance to micro-cracks. The developed FRCP showed good results in terms of self-sensing under compact load with both 0.5 and 1.0% by volume of CF.


  • Self-sensing and mechanical behavior of FRCP under impact loads were assessed.
  • Carbon fibers and steel fibers were utilized to improve the mechanical and piezoresistive properties.
  • The best impact energy results were achieved when only 0.5 and 1.0% vol.% of CF and SF respectively.
  • Successful self-sensing of damage was obtained with superior performance of CF.


Main Subjects

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