Browse > Article
http://dx.doi.org/10.6111/JKCGCT.2016.26.1.023

Reinforcing effects of carbon fiber sheet by compressive strength differences on the RC slabs  

Won, Chan Ho (The Research Institute of Industrial Science, Hanyang University)
Abe, Tadashi (Dept. of Civil Engineering, College of Industrial Technology, Nihon University)
Ahn, Tae-Ho (International Sustainable Engineering Materials (ISEM) Center, Ceramic Materials Institute & Division of Advanced Materials Sci. Eng., Hanyang University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.26, no.1, 2016 , pp. 23-27 More about this Journal
Abstract
This study investigates the effect of carbon fiber sheet (CFS) and carbon fiber strand sheet (CFSS) on the fatigue resistance and compressive strength of RC slabs. The results of a comparison of the number of equivalent cycles between the CFS- and CFSS-reinforced RC slab test specimens obtained from a fatigue test indicate that the CFSS-reinforced RC slab has 1.2~1.3 times greater effect of reinforcement than the CFS-reinforced RC slab. This study also indicates that the fatigue resistance of the CFS- and CFSS-reinforced RC slabs is ensured when the compressive strength of concrete is not lower than the specified design strength prescribed in the Specifications for Highway Bridges but is not ensured when the compressive strength of concrete is lower than the specified design strength, although the effect of reinforcement is secured.
Keywords
RC slab; Maintenance; Repair materials; Carbon fiber sheet (CFS); Carbon fiber strand sheet (CFSS);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Ministry of land, Infrastructure, Transport and Tourism, "Periodic bridge inspection (Plan)", Ministry of land, (Ministry of land, Tokyo, 2004).
2 Ministry of land, Infrastructure, Transport and Tourism, "Trends in long-life repair plans for municipalities", Ministry of land, (Ministry of land, Tokyo, 2011).
3 Chiba prefecture, Chiba environment and road maintenance unit, "Long-life repair plan report", Chiba environment and road maintenance unit, (Chiba prefecture, Chiba, 2010).
4 Japan Road Association, "Road bridge repair and reinforcement casebook", Japan Road Association, (Maruzen, Tokyo, 2009).
5 Public Works Research Institute, "Joint research report on the repair, reinforcement of concrete member, - The design and construction guidelines (plan) for the repair and reinforcement of highway bridge concrete parts using adhesive-bottom side carbon fiber sheets (CFS) -", Public Works Research Institute, (Public Works Research Institute, Miyagi, 1999).
6 T. Abe, T. Kida, C.H. Won and A. Komori, "Evaluation of fatigue resistance and maintenance of RC slab reinforced by CFS under running wheel load", Cem. Sci. & Conc. Tech. 65 (2012) 493.
7 C.H. Won, T. Abe, M. Takano and A. Komori, "Evaluation of fatigue resistance of strenthened with CFS bonded RC slabs and proposal of an S-N curve equation", JSCE Committee of Struc. Eng. 59A (2013) 1075.
8 M. Takano, T. Abe, T. Kida, A. Komori, T. Kodama and Y. Ogawa, "Fatigue resistance by the CFSS bottom reinforcement and SFRC upper overlaid of RC slabs used for 47 years", J. Struc. Eng. 57A (2010) 1286.
9 C.H. Won, T. Abe, T. Kida, M. Takano and A. Komori, "The effect of reinforcement and fatigue resistance of the CFS- and CFSS-reinforced RC slabs", J. Struc. Eng. Vol. 58A (2012) 1189.
10 C.H. Won, T. Abe, T. Kida and A. Komori, "Evaluation of the fatigue resistance of RC slabs strengthened by bonding CFS, CFSS lattices, and proposal of an S-N curve equation", Cem. Sci. & Conc. Tech. 66 (2013) 576.
11 Japan Road Association, "Specifications for highway bridges.commentary", Japan Road Association, Part I. Common, Part II. Steel bridge, (Maruzen, Tokyo, 2002).
12 C.H. Won, T. Abe and T.H. Ahn, "Mechanical properties of carbon fiber sheet and carbon fiber strand sheet based on carbon fibers for the reinforcement of highway bridge RC slabs", J. Korean Cryst. Growth Cryst. Technol. 25 (2015) 290.   DOI
13 C.H. Won, T. Abe, T.H. Ahn and D.K. Kim, "Relationship between fatigue resistance and fracture behavior of the carbon fiber sheet and carbon fiber strand sheet reinforced RC slabs", J. Korean Cryst. Growth Cryst. Technol. 25 (2015) 294.   DOI
14 M. Shigeyuki, "Highway bridge slab design.construction and maintenance", M. Shigeyuki, (Morikita, Tokyo, 2007).
15 C.H. Won, T. Abe, T.H. Ahn, K.B. Shim and B.W. Jo, "A study on the reinforced CFS using the concept of self-healing repair methods in bottom side for damaged highway RC slabs", J. Cera. Process. Res. 16, Spe.1 (2015).