Results 51 to 60 of about 2,566,804 (193)
HBRC Journal, 2013 Chloride attack is one of the major causes of deterioration of reinforced concrete structures. In order to evaluate chloride behavior in concrete, a reasonable prediction for the diffusion coefficient of chloride ion (Dc), which governs the mechanism of ...
O.A. Hodhod, H.I. Ahmed
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Chloride Ion Diffusion Resistance of Bulk Hydrophobic Concrete: Comparison of w/c and Dosages
Nordic Concrete Research, 2023 Post-cast application of hydrophobic agents onto hardened concrete is successful at reducing external ion diffusion into cement paste, this work examines pre-cast application of hydrophobic admixtures in fresh concrete.
Rogers Patrick +4 more
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AN ION SELECTIVE MICROGRIPPER SENSOR DEVICE [PDF]
, 2013 This thesis presents the design, fabrication, characterisation and testing of a chemically modified electrothermally actuated microgripper. The chemical modification involves the integration of a potentiometric ion selective electrode (ISE) onto a bare ...
DAUNTON, RACHAEL,HANNAH
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Evaluation of Relationship between Water Absorption and Durability of Concrete Materials
Advances in Materials Science and Engineering, 2014 Environment has significant effects on the water absorption of concrete materials. This paper presents an experimental study of the influence of water absorption on the durability of concrete materials.
S. P. Zhang, L. Zong
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Ion diffusion coefficient measurements in nanochannels at various concentrations
, 2014 Diffusion is one of the most fundamental properties of ionic transport in solutions. Here, we present experimental studies and theoretical analysis on the ion diffusion in nanochannels.
Xue JM +4 more
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, 2022 Concrete is a multiphase composite material composed of coarse aggregate, cement mortar, and interface transition zone (ITZ). It is of great significance to study the effect of ITZ and coarse aggregate on chloride microscopic diffusion behavior for ...
Rong, Hua +11 more
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Sensors, 2018 This study aims to explore the applicability of diffuse ultrasound to the evaluation of water permeability and chloride ion penetrability of cracked concrete. Lab-scale experiments were conducted on disk-shaped concrete specimens, each having a different
Eunjong Ahn +5 more
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Advances in Civil Engineering, 2021 In this study, the porosities of C60 high-strength concrete after 0, 30, 60, and 90 freeze-thaw cycles determined via the water retention method are 1.30%, 3.65%, 5.14%, and 7.34%, respectively.
Yan Li +6 more
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The kinetics of the dissolution of chalcopyrite in chloride media [PDF]
, 2009 One of the most important outstanding problems with the hydrometallurgy of copper is the low temperature leaching of chalcopyrite. In this thesis, a fundamental study at low temperature was undertaken in order to establish a mechanism, which is ...
Velásquez Yévenes, Lilian
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, 2011 In order to accurately simulate the diffusion of chloride ion in the existing concrete bridge and acquire the precise concentration of chloride ion at any time, a Cellular Automata(CA)-based model is proposed.
Jin Song Zhu, Li Kun He
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