Overview
ABSTRACT
Cracking of reinforced concrete is a normal phenomenon given the fundamental characteristics of this material. However, whether for esthetic or durability reasons, it is judicious to limit the crack openings. This article describes the relations between cracking and durability, and discusses the concept of crack opening. Different theories of the mechanical behavior of reinforced concrete are presented and compared with regulatory approaches. These theories show that reducing stress in the steel reinforcement and using the smallest diameter bars limit crack opening.
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Read the articleAUTHORS
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Jean Michel TORRENTI : Ifsttar, Materials and Structures Department (France)
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Francis BARRE : Geodynamics and Structure (Bagneux, France)
INTRODUCTION
Cracking in reinforced concrete is a normal phenomenon, given the material's operating principle. However, whether for aesthetic or durability reasons, crack openings must be controlled.
After presenting the relationship between cracking – and durability, and discussing the notion of crack opening, various theories on the mechanical behavior of reinforced concrete are presented and compared with regulatory approaches.
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KEYWORDS
cracking | durability
Cracking of reinforced concrete
Cracking and durability of reinforced concrete structures
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