Reinforced concrete strengthening

R. Ortiepp, S. Ortiepp and M. Curbach, Stress transfer in the bondjointofsubsequentiy appiiedtextiie reinforced concrete strengthening , in M. Di Prisco, R. FeiicettiandG.A. Piizzari (eds) Fibre Reinforced Concrete- BEFiB 2004, Proc. RILEM Symp., PRO 39, RILEM Publications, Bagneux, France, 2004, pp. 1483-1494. [Pg.555]

It is of note that during the 1989 San Francisco earthquake, certain overhead road supports that were retroactively strengthened by cladding with a relatively thin layer of carbon fiber-reinforced concrete allowed them to survive while conventional concrete pillars failed [20]. Similarly, in Japan, which experiences several hundreds of earthquakes each year of widely ranging intensity, carbon fibers have been extensively adopted for concrete reinforcement. More carbon fiber is employed in the Japanese construction industry than anywhere else [21]. [Pg.9]

Surovtsev, I., and Borisov, Yu., Durability and Deformability of Reinforced Concrete Bending Structures Strengthened by Polymeric Composites, Journal Scientific Israel Technological Advantages 14, no. 2 (2012) 12-23. [Pg.195]

REPAIR AND STRENGTHENING OF REINFORCED CONCRETE STRUCTURES BY EPOXY-RUBBER COATINGS [10-25]... [Pg.202]

Source Reprinted from I. Surovtsev, Yu. Potapov, Yu. Borisov, and V. Selyaev, Strength and Deformability of Reinforced Concrete Bending Constructions Strengthened by Polymeric Composites, J. Scientific Israel Technological Advantages 8, nos. 1—2 (2006) 107—116. With permission. [Pg.205]

All this testifies to the fact that the maximum effect is obtained with the use of polymer coating for strengthening of reinforced concrete beams and simultaneously for further corrosion protection. [Pg.206]

The quantitative deformability characteristics of beams at bend is given in Table 6.8. As seen in Table 6.9, composite beams have smaller deflections/as compared to the reinforced concrete beam without a strengthened coating. [Pg.208]

The term conventional repair is used in this book to indicate a repair work made on a damaged reinforced concrete structure, which is aimed at restoring protection to the reinforcement by means of replacement of non-protective concrete with a suitable cementitious material. The durability of the repair work is due to the achievement and maintenance of passivity on the reinforcement by the contact with the protective repair material. The repair work can be divided in the following steps a) assessment of the condition of the structure b) removal of concrete in well-defined parts of the structure and for specific depths c) cleaning of the exposed rebars d) application of a suitable repair material to provide an adequate cover to the reinforcement [1-6]. Each of these steps must be carried out properly in order to guarantee the effectiveness of the whole repair work. Additional protection measures can be used to increase the durability of the repair, but they must not interfere with the protection provided by the alkahnity of the repair material. Strengthening may also be required to restore the structural safety of the structure. [Pg.329]

Development of strengthening (or retrofitting) methods by the troweling or shotcreting work of polymer-modified mortar and of exfoliation (or delamination) prevention methods by use of polymer-modified paste or mortar with fiber sheets for reinforced concrete structures [69-71]... [Pg.6]

K.R. Venkatesh et al. Experimental evaluation of the fire behaviour of insulated fibre-reinforced-polymer-strengthened reinforced concrete columns. Fire Safety Journal, Vol.41, (2006), pp.547-557... [Pg.94]

There is also a shortage of data on the impact of the transition zones both paste-aggregate and paste-reinforcement on concrete properties. The correlation between concrete durability and strength of bond has not been foimd as yet. Mindess et al. [54] propose some methods of paste with aggregate or reinforcement bond strengthening. The silica fume addition can be apphed very easily. [Pg.392]

Externally bonded FRP plates, sheets and wraps for the strengthening of reinforced concrete, steel, aluminium and timber structural members... [Pg.72]

Fire tests on FRP-reinforced or strengthened concrete Recent fire tests and numerical studies on FRP-reinforced beams and slabs have been performed in North America (Kodur and Baingo 1998, Saafi 2002, Kodur and Bisby 2005) and the United Kingdom (Abbasi and Hogg... [Pg.90]

Similar to the design of flexural strengthening, the following states for the shear design of reinforced concrete (RC) members can be distinguished as the stmctural loads increase ... [Pg.102]

Aidoo, J., K. A. Harries and M. F. Petrou (2004). Fatigue behaviour of CFRP-strengthened reinforced concrete bridge girders. Journal of Composites for Construction 8(6) pp. 501-509. [Pg.123]

Heffernan, P. J. (1997). Fatigue Behavior of Reinforced Concrete Beams Strengthened with CFRP Laminates. PhD thesis. Department of Civil Engineering, Royal Military College of Canada, Kingston, Ontario, Canada, p. 157. [Pg.125]

ISIS-Canada (2001). Strengthening Reinforced Concrete Structures with Externally-Bonded Fibre Reinforced Polymers. Design Manual No. 4. Winnipeg, Manitoba, ISIS-Canada. [Pg.125]

Motavalli, M., C. Czaderski and K. Pfyl-Lang (2010). Prestressed CFRP for strengthening of reinforced concrete structures - Recent developments at Empa Switzerland. Journal of Composites for Construction, ASCE (onhne 6.4.2010) doil0.1061/(ASCE)CC.1943-5614.0000125. [Pg.126]

Papakonstantinou, C. G., M. F. Petrou and K. A. Harries (2001). Fatigue of reinforced concrete beams strengthened with GFRP sheets. Journal of Composites for Construction 5(4) pp. 246-253. [Pg.127]

TTiantafillou, T. C. (1998). Shear strengthening of reinforced concrete beams using epoxy-bonded FRP composites. ACI Structural Journal 95(2) pp. 107-115. [Pg.128]

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