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Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams

Thermou, G.E.; Papanikolaou, V.K.; Lioupis, C.; Hajirasouliha, I.

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Assistant Professor in Structural Engineering

V.K. Papanikolaou

C. Lioupis

I. Hajirasouliha



This paper investigates the effectiveness of Steel-Reinforced Grout (SRG) jackets to strengthen shear critical reinforced concrete (RC) beams. Eleven RC beams were tested in three-point bending. Key parameters of investigation were the strengthening configuration (U- and fully-wrapped jackets), the density of the fabric (1.57 and 4.72 cords/cm) and the number of the strengthening layers (one and two). The test results demonstrated the efficiency of SRG jacketing in increasing both strength (up to 160%) and deformation capacity (up to 450%) of the shear critical beams. Expressions are proposed for estimating the effective strain of the SRG jacket.


Thermou, G., Papanikolaou, V., Lioupis, C., & Hajirasouliha, I. (2019). Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams. Construction and Building Materials, 216, 68-83.

Journal Article Type Article
Acceptance Date Apr 27, 2019
Online Publication Date May 4, 2019
Publication Date Aug 20, 2019
Deposit Date Apr 29, 2019
Publicly Available Date May 5, 2020
Journal Construction and Building Materials
Print ISSN 0950-0618
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 216
Pages 68-83
Keywords SRG; FRCM; Jackets; Steel fabric; Mortar; RC Beams; Shear; Strengthening
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Additional Information This article is maintained by: Elsevier; Article Title: Steel-Reinforced Grout (SRG) strengthening of shear-critical RC beams; Journal Title: Construction and Building Materials; CrossRef DOI link to publisher maintained version:; Content Type: article; Copyright: © 2019 Elsevier Ltd. All rights reserved.


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