SRG for Strengthening Reinforced Concrete and Masonry Structures: From Laboratory to Field Applications

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Title: SRG for Strengthening Reinforced Concrete and Masonry Structures: From Laboratory to Field Applications

Author(s): Paolo Casadei, Paolo Girardello

Publication: Symposium Paper

Volume: 324

Issue:

Appears on pages(s): 13.1-13.14

Keywords: Steel reinforced grout, UHTSS steel fibers, reinforced concrete, masonry. hydraulic lime based mortar, strengthening, seismic retrofit.

DOI: 10.14359/51702365

Date: 4/1/2018

Abstract:
Fiber-Reinforced Cementitious Matrix (FRCM) composites are becoming a widespread technology for the rehabilitation and strengthening of historic masonry and reinforced concrete structures due to some advantages that allow them to be a suitable alternative to Fabric-Reinforced Polymer (FRP) composites. In this work, a new family of FRCM composites system made of ultra-high strength steel cords installed with either hydraulic lime or cement based mortars named Steel Reinforced Grout (SRG) is presented. This paper briefly introduces to the main properties and mechanical characteristics of SRGs, and introduces case studies on masonry and reinforced concrete structures demonstrating the different field applications of this new and effective strengthening solution.

Related References:

1. Casadei, P., Nanni, A., Alkhrdaji, T., Thomas, J. (2005). “Behavior of double-t prestressed beams strengthened with steel reinforced polymer”. Advances in Structural Engineering an International Journal (ASCE), V. 8, No. 4, pp. 427–442.

2. Kerakoll S.p.A., web site: [accessed Feb 2016].

3. Santandrea, M., Imohamed, I. A. O., Jahangir, H., Carloni, C., Mazzotti, C., De Miranda, S., Ubertini, F., Casadei, P. (2016). “An investigation of the debonding mechanism in steel FRP- and FRCM-concrete joints”, 4th Workshop on The New Boundaries of Structural Concrete, Capri, Italy, September 29th – October 1st, pp. 289 – 298.

4. Santandrea, M., Imohamed, I.A.O., Carloni, C., Mazzotti, C., de Miranda, S., Ubertini, F. (2016). “A study of the debonding mechanism in steel and basalt FRCM-masonry joints”, Brick and Block Masonry: Proceedings of the 16th International Brick and Block Masonry Conference, Padova, Italy, 26-30 June 2016., pp. 433 – 440.

5. De Santis, S., Casadei, P., de Felice, G. (2014). “Tests on the bond performance of mortar-based strengthening systems on masonry substrates”, 9th International Masonry Conference, Guimaraes, Portugal, Paper No 1438.

6. Napoli, A., Realfonso, R. (2015). “Reinforced concrete beams strengthened with SRP/SRG systems: Experimental investigation”, Construction and Building Materials 93, pp. 654-677.

7. Expin S.r.l. (2016). “Edificio sito in via della Genca – indagini sperimentali propedeutiche agli interventi di consolidamento strutturale dell’edificio”, Technical report.

8. Mucchi, V. (2016). “Rinforzo con FRCM di pannelli di muratura in laterizio a una testa per azioni nel piano”, University of Ferrara, Thesis, tutor: Prof. Alessandra Aprile.

9. De Santis, S., Casadei, P., De Canio, G., de Felice, G., Malena, M., Mongelli, M., Roselli, I. (2016). “Seismic performance of masonry walls retrofitted with steel reinforced grout”, Earthquake Engineering and Structural Dynamics, V. 45, No. 2, pp. 229-251.

10. Cescatti. E. (2016). “Combined experimental and numerical approaches to the assessment of historical masonry structures”, University of Trento, Ph. D. Thesis, tutor: Prof. Claudio Modena.

11. Carloni, C., Incerti, A., Santandrea, M., Savoia, M., Mazzotti, C. (2016). “Prove di carico su volte in laterizio rinforzate con materiali compositi”. CIRI Edilizia e Costruzioni, Technical report.