Repair of Fire-Damaged Reinforced Concrete Flexural Members: A Review

Wenxian Ma, Chunxiang Yin, Jun Zhou and Lu Wang
Additional contact information
Wenxian Ma: College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China
Chunxiang Yin: College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China
Jun Zhou: College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China
Lu Wang: College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China

Sustainability, 2019, vol. 11, issue 19, 1-14

Abstract: The mechanical properties of both concrete and steel reinforcement, and the load-bearing capacity of reinforced concrete (RC) structures are well known to be temperature-sensitive, as demonstrated by the severe damage that major fires cause in buildings, followed—in extreme cases—by their collapse. Since in most cases RC structures survive a fire, retrofitting fire-damaged RC members is a hot subject today. In this paper, after a recall on the performance of RC beams and slabs in fire, different repair techniques are considered, among them externally bonded reinforcement, near surface-mounted fiber-reinforced polymers (FRP), bolted side plating, jacketing with high- and ultra-high performance concretes or mortars, and damaged-concrete replacement. Last but not least, the design equations aimed at evaluating the residual load-bearing capacity after repairing are also presented and discussed.

Keywords: fire exposure; RC beams; RC slabs; residual load-bearing capacity; repair techniques (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/11/19/5199/pdf (application/pdf)
https://www.mdpi.com/2071-1050/11/19/5199/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:11:y:2019:i:19:p:5199-:d:269706

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().