The Strengthening of the Bridge Deck Plates by P.B.O-F.R.C.M Composite Materials

2012 ◽  
Vol 548 ◽  
pp. 58-63 ◽  
Author(s):  
Laura Anania ◽  
Antonio Badalà ◽  
G. D’Agata

This paper demonstrates how advanced composite materials as F.R.C.M. (fiber reinforced cementicius matrix) can offer high advantages for repairing ageing infrastructures. The FRCM strengthening system can be considered alternative to the well-known fibre-reinforced polymers (FRP) system. The FRCM system, in fact, permits the elimination of some disadvantages related to the use of organic resin, such as lack of fire resistance and low compatibility with the concrete substrate. In this study, a data comparison between non-reinforced and reinforced models is discussed. The specimens simulated a part of a bridge deck to repair or strengthen. The samples were no. 6 plates 70x70 cm ² long and 10 cm thick realized by a mix design concrete [1] of 30/35 class and reinforced by steel bars. The strengthening system consists in applying the composite biaxial sheet at the intrados of the deck in two layers orthogonal to each other.

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Kailin Zhou

The need to reduce the overall weight of aeronautical and space structures while preserving or even improving their performances make the research and development in the field of advanced composite materials necessary for the advancement of aerospace technologies. This paper provides an overview of composite materials and their fiber reinforcement technology in aerospace field. We discuss the reasons for aircraft manufacturers and airlines to use composites and illustrate the definition of composite material. Then, we list the advantages and disadvantage of composite materials and cite different fiber reinforcement technologies of carbon fibers, aramid fiber, UHMWPE, etc. At last, we summarize the present and future applications of composites materials in aerospace and other civil fields. A conclusion is drawn that in the future, composite materials are set for their development, while continually decreasing its costs is still an important task.


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