scholarly journals Mechanical Behavior of RC Columns Damaged by Alkali-Silica Reaction and Proposal of Strengthening Method.

2002 ◽  
pp. 129-142
Author(s):  
Mitsuyasu IWANAMI ◽  
Hiroshi YOKOTA ◽  
Kazutoshi OKUYAMA ◽  
Kazuyuki TORII
Keyword(s):  
Mechanical Behavior ◽  
Alkali Silica Reaction ◽  
Rc Columns ◽  
Strengthening Method

scholarly journals Specific ion effects control the thermoelastic behavior of nanolayered materials: the case of crystalline alkali-silica reaction products

2020 ◽  
Vol 22 (47) ◽  
pp. 27800-27810
Author(s):  
Tulio Honorio ◽  
Ornella M. Chemgne Tamouya ◽  
Zhenguo Shi
Keyword(s):  
Mechanical Behavior ◽  
Molecular Simulations ◽  
Layered Silicate ◽  
Alkali Silica Reaction ◽  
Reaction Products ◽  
Specific Ion Effects ◽  
Ion Effects

We perform molecular simulations to characterize the structure and the thermo-mechanical behavior of crystalline alkali-silica reaction (ASR) products, which are layered silicate analogous to shlykovite.

scholarly journals Strengthening Design of RC Columns with Direct Fastening Steel Jackets

2021 ◽  
Vol 11 (8) ◽  
pp. 3649
Author(s):  
Zhiwei Shan ◽  
Lijie Chen ◽  
Kun Liang ◽  
Ray Kai Leung Su ◽  
Zhao-Dong Xu
Keyword(s):  
Flexural Strength ◽  
Load Capacity ◽  
Design Procedure ◽  
Load Ratio ◽  
High Strength ◽  
Lateral Load ◽  
Steel Plates ◽  
Flexural Stiffness ◽  
Rc Columns ◽  
Strengthening Method

For non-seismically designed columns with insufficient strength and flexural stiffness, intense inter-story drift can be incurred during a strong earthquake event, potentially leading to the collapse of the entire building. Existing strengthening methods mainly focus on enhancing axial or flexural strength but not the flexural stiffness of columns. In response, a novel direct fastening steel jackets that can increase both flexural strength and stiffness is introduced. This novel strengthening method features straightforward installation and swift strengthening as direct fastening is used to connect steel plates together to form a steel jacketed column. This new connection method can quickly and stably connect two steel components together by driving high strength fasteners into them. In this paper, the design procedure of RC columns strengthened with this novel strengthening method is originally proposed, which includes five steps: (1) estimating lateral load capacity of damaged RC columns; (2) determining connection spacing of steel jacket; (3) estimating the lateral load capacity of strengthened RC column; (4) evaluating the axial load ratio (ALR) of strengthened RC columns; and (5) estimating effective stiffness of strengthened RC columns. Lastly, an example is presented to illustrate the application of the proposed design procedure.

Effects of fatigue loading and alkali-silica reaction on the mechanical behavior of pavement concrete

2017 ◽  
Vol 18 (4) ◽  
pp. 539-549 ◽  
Author(s):  
Andreas Wiedmann ◽  
Frank Weise ◽  
Engin Kotan ◽  
Harald S. Müller ◽  
Birgit Meng
Keyword(s):  
Mechanical Behavior ◽  
Fatigue Loading ◽  
Alkali Silica Reaction ◽  
Pavement Concrete

Mechanical behavior of concretes damaged by alkali-silica reaction

2008 ◽  
Vol 38 (7) ◽  
pp. 993-1004 ◽  
Author(s):  
G. Giaccio ◽  
R. Zerbino ◽  
J.M. Ponce ◽  
O.R. Batic
Keyword(s):  
Mechanical Behavior ◽  
Alkali Silica Reaction

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

Mechanical Behavior of Materials

2005 ◽  
Author(s):  
William F. Hosford
Keyword(s):  
Mechanical Behavior
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