{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:03:14Z","timestamp":1787029394107,"version":"build-2736575974"},"reference-count":101,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T00:00:00Z","timestamp":1761523200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ongoing Research Funding program\u2014Research Chairs","award":["ORF-RC-2025-0400"],"award-info":[{"award-number":["ORF-RC-2025-0400"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Fiber-reinforced polymer (FRP) composites have become a popular solution for upgrading reinforced concrete (RC) structures due to their corrosion resistance, high strength-to-weight ratio, and speed of implementation. However, their organic resin binder has issues, including temperature sensitivity, poor performance in moist conditions, a high cost, and potential health risks. Additionally, reversing FRP repair can be difficult and may damage the original structure, posing a significant reversibility issue. A promising alternative to FRP is the fiber-reinforced cementitious matrix (FRCM), which replaces the organic resin with an inorganic cementitious mortar. This new class of composite uses a breathable textile instead of the tightly packed fibers in FRP. The present article provides a comprehensive assessment of the two composites (FRP and FRCM) used for the retrofitting of RC compression members, with the purpose of identifying existing knowledge gaps and outlining future research objectives. The materials used in different strengthening approaches using both FRP and FRCM have been identified, and their stress\u2013strain characteristics under tensile load have been outlined. The study also explores techniques of implementation using the two materials. This study presents available studies comparing the utilization of FRCM composites with FRP for the axial retrofitting of RC compression members in both ambient and high-temperature conditions.<\/jats:p>","DOI":"10.3390\/polym17212865","type":"journal-article","created":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T13:59:36Z","timestamp":1761659976000},"page":"2865","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Polymer Versus Cementitious Matrix Composites for Retrofitting Reinforced Concrete Columns\u2014A State-of-the-Art Review"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9786-1103","authenticated-orcid":false,"given":"Hussein","family":"Elsanadedy","sequence":"first","affiliation":[{"name":"Chair of Research and Studies in Strengthening and Rehabilitation of Structures, Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8498-1402","authenticated-orcid":false,"given":"Aref","family":"Abadel","sequence":"additional","affiliation":[{"name":"Chair of Research and Studies in Strengthening and Rehabilitation of Structures, Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3865-9540","authenticated-orcid":false,"given":"Husain","family":"Abbas","sequence":"additional","affiliation":[{"name":"Chair of Research and Studies in Strengthening and Rehabilitation of Structures, Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tarek","family":"Almusallam","sequence":"additional","affiliation":[{"name":"Chair of Research and Studies in Strengthening and Rehabilitation of Structures, Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8881-6239","authenticated-orcid":false,"given":"Yousef","family":"Al-Salloum","sequence":"additional","affiliation":[{"name":"Chair of Research and Studies in Strengthening and Rehabilitation of Structures, Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,27]]},"reference":[{"key":"ref_1","first-page":"2015","article-title":"Effectiveness of repair and strengthening methods for reinforced concrete columns and beam-column joints","volume":"Volume 10","author":"Sezen","year":"2012","journal-title":"Structures Congress"},{"key":"ref_2","unstructured":"(2014). Guide to Concrete Repair. American Concrete Institute (ACI) Committee 546 (Standard No. ACI 546.1R)."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1016\/j.conbuildmat.2015.03.013","article-title":"Experimental and analytical study of reinforced concrete beams shear strengthened with different types of textile-reinforced mortar","volume":"83","author":"Escrig","year":"2015","journal-title":"Constr. Build. 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