Results 31 to 40 of about 3,497,749 (200)

Quantifying the protective efficacy of GN anti-chloride admixture on durable performance of concrete in chloride ion erosion environments

open access: yesMeasurement: Sensors
This study evaluates the effectiveness of GN (Graphene Nanoplatelets) salt inhibitor-treated concrete in inhibiting chloride ion diffusion and corrosion compared to untreated concrete under various erosion conditions.
Longzhen Wang   +4 more
doaj   +1 more source

Comparison of Material Properties of SCC Concrete with Steel Fibres Related to Ingress of Chlorides

open access: yesCrystals, 2020
The paper focuses on the evaluation of chloride ion diffusion coefficient of self-compacting concrete with steel fibre reinforcement. The reference concrete from Ordinary Portland Cement (OPC) and Self-Compacting Concrete (SCC) with several values of ...
Petr Lehner   +2 more
doaj   +1 more source

Study on the Relationship between Chloride Ion Penetration and Resistivity of NAC-Cement Concrete

open access: yesBuildings, 2022
To explore the effect of nano-attapulgite clay (NAC) on the durability of concrete, two kinds of NAC (calcined raw ore and calcined high viscosity ore: calcination at 650 °C for 2 h) were used to study their effects on the durability of concrete, mainly ...
Xiaofei Liang   +5 more
doaj   +1 more source

Evaluation of Chloride-Ion Diffusion Characteristics of Wave Power Marine Concrete Structures

open access: yes, 2021
Wave power marine concrete structures generate electrical energy using waves. They are exposed to a multi-deterioration environment because of air and hydrostatic pressure and chloride attack.
Bokyeong Lee   +6 more
core   +1 more source

Ion diffusion coefficient measurements in nanochannels at various concentrations

open access: yes, 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
core   +1 more source

Chloride Ion Corrosion Resistance of Innovative Self-Healing SMA Fiber-Reinforced Engineering Cementitious Composites under Dry-Wet Cycles for Ocean Structures

open access: yesBuildings, 2023
To evaluate the chloride ion corrosion resistance of proposed innovative self-healing concrete based on shape memory alloys (SMA) and engineering cementitious composites (ECC), a total of 2 kinds of 22 specimens were prepared.
Weihong Chen   +5 more
doaj   +1 more source

Effective and Apparent Diffusion Coefficients of Chloride Ions and Chloride Binding Kinetics Parameters in Mortars: Non-Stationary Diffusion–Reaction Model and the Inverse Problem [PDF]

open access: yesMaterials, 2020
A non-equilibrium diffusion–reaction model is proposed to describe chloride transport and binding in cementitious materials. A numerical solution for this non-linear transport with reaction problem is obtained using the finite element method. The effective chloride diffusion coefficients and parameters of the chloride binding are determined using the ...
Jerzy Jasielec   +6 more
openaire   +2 more sources

Evaluation of Relationship between Water Absorption and Durability of Concrete Materials

open access: yesAdvances 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
doaj   +1 more source

Chloride Ion Corrosion Pattern and Mathematical Model for C60 High-Strength Concrete after Freeze-Thawing Cycles

open access: yesAdvances 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
doaj   +1 more source

Effectiveness of Biological Mortars with Bacterial Glycocalyx on Service Life of Concrete Structures Exposed to Salt Attack

open access: yesInternational Journal of Concrete Structures and Materials
This study investigated the effectiveness and limitations of newly developed biological mortars regarding chloride ion diffusion resistance. Through several tests on the glycocalyx production capacity and growth potentials of bacteria cells under marine ...
Hyun-Sub Yoon   +5 more
doaj   +1 more source

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