Column repair and strengthening using RC jacketing: a brief state-of-the-art review

Habib, Ahed; Yıldırım, Umut; Eren, Özgür

doi:10.1007/s41062-020-00329-4

Cited by 17 publications

(5 citation statements)

References 44 publications

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“…The drying shrinkage of rubberized concrete was found to be influenced by the number of rubber particles in the concrete mixture with the more the rubber replacement ratio, the higher the measured drying shrinkage is expected. This observation is similar to the general behavior of rubberized concrete in which the rubber contents have a negative influence on the mechanical properties of the produced concrete [89,90]. These reductions are mainly attributed to the fact that rubber aggregates are weaker and more flexible than the natural ones [91].…”

Section: Recycled Polymers and Rubberized Concretesupporting

confidence: 83%

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

et al. 2020

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Concrete is indeed one of the most consumed construction materials all over the world. In spite of that, its behavior towards absolute volume change is still faced with uncertainties in terms of chemical and physical reactions at different stages of its life span, starting from the early time of hydration process, which depends on various factors including water/cement ratio, concrete proportioning and surrounding environmental conditions. This interest in understanding and defining the different types of shrinkage and the factors impacting each one is driven by the importance of these volumetric variations in determining the concrete permeability, which ultimately controls its durability. Many studies have shown that the total prevention of concrete from undergoing shrinkage is impractical. However, different practices have been used to control various types of shrinkage in concrete and limit its magnitude. This paper provides a detailed review of the major and latest findings regarding concrete shrinkage types, influencing parameters, and their impacts on concrete properties. Also, it discusses the efficiency of the available chemical and mineral admixtures in controlling the shrinkage of concrete.

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Section: Recycled Polymers and Rubberized Concretesupporting

confidence: 83%

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

et al. 2020

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“…Sand blasting also could be used for making the interface rougher as it gives high bond in shear and tension. On the other hand, pre-wetting the surface does not affect the bond [19].…”

Section: Literature Reviewmentioning

confidence: 91%

Strengthening of Edge and Corner Columns using Concrete Jackets

et al. 2021

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Strengthening of columns using concrete jackets depends on friction at the interface between them. So strengthening of edge and corner columns in only one story needs a large cross section area due to the shortage of friction length which leads to architectural issues. This research aims to study strengthening the edge and corner columns using a concrete Jacket in more than one story which increases the friction area between the Jacket and the original column. As a result, the load transferred from original column to the jacket will be increased. Thirteen models were done using ANSYS program to study the effect of various factors on the Jacket capacity such as the number of strengthened floors, the Jacket type (two sides or three sides), and whether there were shear connectors or not. The results showed that in the case of the edge and corner columns, it is preferable to strengthen the column by making a concrete Jacket on at least two or three floors to increase the surface area, which leads to increase the friction and thus increases the capacity of the strengthened column by an acceptable percentage. The results of ANSYS models were compared with the Indian code IS 15988 (2013) and the results were shown differently because the code equations depend on the presence of a full bond between the concrete column and the Jacket, which does not occur, but rather the load is transferred by friction between the Jacket and the original column. Doi: 10.28991/cej-2021-03091716 Full Text: PDF

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“…Nowadays, Finite Element (FE) modeling is widely accepted as a powerful tool for conducting a comprehensive study and evaluating the behavior of structural elements under different loading conditions (Habib et al, 2020;Lampropoulos & Dritsos, 2011). In general, dams are simulated in 2D or 3D, Figure 5, and the observed variation between the analysis results of these two modeling methods in the case of seismic performance, Figure 6, is emerged from the change in the stiffness, fundamental periods and the geometrical effects, which increase the capacity of the stiffer model under earthquake excitations (Arici et al, 2014).…”

Section: Finite Element Modeling and Analysismentioning

confidence: 99%

Structural Performance and Finite Element Modeling of Roller Compacted Concrete Dams: A Review

Habib

Houri

Habib

et al. 2021

Lat. Am. j. solids struct.

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There is no doubt that concrete is one of the most consumed materials all over the world. It is a composite mix widely used for constructing structures and infrastructures to sustain environmentally induced stresses such as thermal and seismic. As the mainstream of construction industry is tended to find out feasible solutions, Roller Compacted Concrete (RCC) was introduced to play an essential role in the development of dams and pavements, where over 550 RCC dams were created by the end of 2012. In fact, this material has the same basic constituents of conventional concrete with a zero-slump and a significant difference in the placing process. The majority of available studies in the literature are composed of numerical investigations to assess the thermal and seismic behavior of RCC dams and to provide a clear view on how to improve its performance under various loading conditions. This paper summarizes and compares the general conclusions of recent works on evaluating the structural performance of RCC dams.

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Column repair and strengthening using RC jacketing: a brief state-of-the-art review

Cited by 17 publications

References 44 publications

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

Strengthening of Edge and Corner Columns using Concrete Jackets

Structural Performance and Finite Element Modeling of Roller Compacted Concrete Dams: A Review

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