TY  - JOUR
VL  - 8
PB  - Frontiers Media S.A.
JF  - Frontiers in Materials
AV  - none
A1  - Noman, M.
A1  - Yaqub, M.
A1  - Abid, M.
A1  - Musarat, M.A.
A1  - Vatin, N.I.
A1  - Usman, M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124542604&doi=10.3389%2ffmats.2021.801464&partnerID=40&md5=805a2437b7cb6636cf2a87b26bf19368
N1  - cited By 8
ID  - scholars17167
N2  - Researchers have conducted numerous investigations on various repair techniques to restore the mechanical properties of fire-damaged concrete. However, most of the techniques are either expensive or require high technical skills. As a continuous work, this study involved an experimental investigation of the effects of various low-cost repair techniques to restore the mechanical properties of fire-damaged concrete. Sixty cylindrical concrete samples were subjected to heat ranging from 400°C to 800°C in a propane gas furnace. The samples were categorized into six groups, including the following: undamaged, fire-damaged, and fire-damaged and repaired using water curing; fire-damaged and repaired using cement-based slurry injection; re-curing fire-damaged and repaired with steel wire mesh along with epoxy resin wrapping; and fire-damaged and repaired using epoxy injection. The samples were tested for non-destructive and destructive tests, including ultrasonic pulse velocity, rebound hammer, and compressive strength. The results showed that the use of cement-based slurry injection along with the water-curing repair technique could regain almost 90 of its ultimate strength and secant stiffness, making it the most effective low-cost repair technique for fire-damaged concrete exposed up to 700°C. Copyright © 2022 Noman, Yaqub, Abid, Musarat, Vatin and Usman.
SN  - 22968016
Y1  - 2022///
TI  - Effects of Low-Cost Repair Techniques on Restoration of Mechanical Properties of Fire-Damaged Concrete
KW  - Cements; Compressive strength; Concretes; Costs; Curing; Epoxy resins; Fires; Nondestructive examination; Restoration; Ultrasonic testing
KW  -  Cement-based; Experimental investigations; Fire damaged concretes; Low-cost repair; Low-costs; Post-fire; Post-fire curing; Repair techniques; Slurry injection; Technical skills
KW  -  Stiffness
ER  -