NSM systems

José Sena-Cruz, Joaquim Barros, Vincenzo Bianco, Antonio Bilotta, Dionysios Bournas, Francesca Ceroni, Glaucia Dalfré, Renata Kotynia, Giorgio Monti, Emilio Nigro, Thanasis Triantafillou

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review


This chapter gives an overview on the state-of-the-art of the Near-Surface Mounted (NSM) technique for structural retrofitting of reinforced concrete structures using Fibre Reinforced Polymers (FRP). The chapter is divided in 5 sections. Firstly, general aspects of the technique are introduced, including main advantages, nomenclature adopted, type of FRP reinforcement and adhesive used, groove geometry/location, and constructional aspects. Then, the existing knowledge on the bond behaviour is addressed focusing on the performed experimental investigations, results, and conclusions in terms of test setups, failure modes, and influence of different parameters on the bond performance. The performance of the existing local bond-slip behaviour laws, both proposed by codes and researches, is also addressed. Similar analysis is also followed for the case of flexural strengthening. The current state on shear strengthening includes two formulations for predicting the NSM shear carrying capacity. The chapter ends with a concluding section summarizing the current state and identifying the needs for future research.

Original languageEnglish (US)
Title of host publicationRILEM State-of-the-Art Reports
PublisherSpringer Netherlands
Number of pages46
StatePublished - 2016

Publication series

NameRILEM State-of-the-Art Reports
ISSN (Print)2213-204X
ISSN (Electronic)2213-2031


  • FRP
  • NSM
  • Reinforced concrete
  • Strengthening

ASJC Scopus subject areas

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


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