Retrofit for blast-resistant RC slabs with composite materials

Binggeng Lu, Pedro Franco Silva, Antonio Nanni, Jason Baird

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


This research program was initiated to examine the feasibility of assessing the blast-resistant capacity of reinforced concrete (RC) slabs using the displacement based design (DBD) method. In order to achieve this objective, five RC slabs were tested under real blast loads in the out-of-plane direction. One of the slabs was used as the control unit to establish a baseline for comparison in terms of performance for the other four slabs, which were strengthened with fiber reinforced polymer (FRP) and steel fiber reinforced polymer (SRP). The explosive charge weight and stand-off distance required to impose a given damage level were predicted by the DBD method. Test results showed that the blast loads were effectively estimated and the damage levels observed from the field tests correlated well with the predicted levels. In addition, test results corroborated that the blast-resistant capacity of RC slabs can be effectively increased by strengthening using FRP composites. The main conclusion that can be drawn from these tests using improvised explosive devices (IDE) is that RC slabs retrofitted on both sides have a higher blast resistance capacity than those slabs retrofitted only on one side. This paper discusses these experimental results along with the analysis steps used to predict the blast charge and standoff distance to impose a given damage level.

Original languageEnglish (US)
Title of host publication7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures
EditorsCarol K. Shield, John P. Busel, Stephanie L. Walkup, Doug D. Gremel
PublisherAmerican Concrete Institute
Number of pages15
ISBN (Electronic)9780870311895
StatePublished - Oct 1 2005
Externally publishedYes
Event7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005 - Kansas City, United States
Duration: Nov 6 2005Nov 10 2005

Publication series

NameAmerican Concrete Institute, ACI Special Publication
ISSN (Print)0193-2527


Conference7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005
Country/TerritoryUnited States
CityKansas City


  • Blast-resistant
  • Displacement-based method
  • Ductility
  • Fiber reinforced polymers
  • Steel-reinforced polymers

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)


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