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    <title>Transport Research International Documentation (TRID)</title>
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    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>Towards Plating-Free Charging: Lightweight Prediction of Lithium Plating Current Limits</title>
      <link>https://trid.trb.org/View/2692195</link>
      <description><![CDATA[Lithium plating is a critical barrier to fast charging in electric and hybrid-electric vehicles, occurring at high state of charge (SOC) or low temperatures when Li+ deposits as metallic lithium on the anode surface instead of intercalating into graphite. At low temperatures, plated lithium may form dendrites that pierce the separator and trigger thermal runaway, while at high SOC, irreversible plating accelerates capacity fade by depleting cyclable lithium. Despite extensive study, lithium plating remains difficult to incorporate into battery management systems (BMS) due to computational complexity and the challenge of real-time detection, leading to reliance on conservative lookup maps. This work presents a lightweight empirical model for predicting plating-free charging limits in lithium nickel manganese cobalt (NMC) cells. A high-fidelity pseudo-2D electrochemical model was exercised across a wide range of charge rates and temperatures to capture the coupled effects of SOC, temperature, and current on plating potential. From these results, an empirical separable closed-form function was derived that is continuous, differentiable, and computationally efficient, enabling onboard real-time implementation. Validation against the high-fidelity model demonstrated strong agreement, with adjusted R² > 0.99 and RMSE on the order of 1–3 A across the domain. Co-simulation confirmed that the model enforces plating-free charging across cold to hot conditions, while pulse-current tests showed that the continuous limits remain conservative under transient operation. In addition, charge-time analysis revealed an exponential dependence on temperature, leading to a compact correlation for estimating charge durations under varying thermal environments. Unlike detailed electrochemical models, this framework provides a practical, validated function for defining plating-free charging envelopes, directly suited for integration into BMS and supervisory charging strategies.]]></description>
      <pubDate>Mon, 01 Jun 2026 11:19:36 GMT</pubDate>
      <guid>https://trid.trb.org/View/2692195</guid>
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    <item>
      <title>Corrosion Propagation Monitoring Using Galvanostatic Pulse on Reinforced Concrete Legacy Samples</title>
      <link>https://trid.trb.org/View/2232241</link>
      <description><![CDATA[Legacy samples were monitored. Outdoor exposed legacy samples were prepared in 1994 and have been subjected to wet/dry cycles with seawater during the wet part of the cycle. Two sets of samples were stored indoors: single rebar and three rebar specimens, these samples were prepared in 2016 and were subjected to accelerated chloride transport via a migration method at least two months after casting. The concrete composition of these samples was binary or ternary (see details in the body of the report). The indoor samples have various lengths of solution reservoir and the samples are stored in plastic bins that allow the moisture surrounding the specimens to remain above 80% RH. Although the notice to proceed was received August 2020, this report includes measurements performed February 2020 to August 2021 for the indoor samples, and August 2020 to August 2021 for the outdoor samples. Electrochemical measurements were performed using galvanostatic pulse method to monitor the legacy samples. The applied pulse current magnitude was initially 10 μA, but it was adjusted to either a smaller or larger magnitude depending on how much the rebar was polarized with the current on. Initially an anodic current was applied, but it was decided to change it to a cathodic current to minimize activation due to the galvanostatic pulse. Each measurement allowed to identify the rebar instantaneous open circuit potential (OCP), solution resistance (Rs), and polarization resistance (Rc). It was assumed that all rebars were corroding and the Icorr was calculated assuming a B constant of 26.1 mV (in the Stern-Geary equation). Ecorr vs. Icorr and Icorr vs. Rs correlations were prepared using three most recent measurements (i.e., with measurements made between April and August 2021). The findings of the Ecorr vs. Icorr correlations suggest that the slope is not the same for all sample groups, but they appear to confirm that all rebars are in an active state. It was observed that the Ecorr-Icorr value pairs of some rebars suggest less active state and deviate somewhat from the average slope. This observation is more pronounced on some outdoor samples than those exposed indoors. An interesting observation from the Icorr vs. Rs correlation corresponding to outdoor samples is that some rebars showed significantly smaller Rs with relative large Icorr values, these appear to correspond to rebars that now show cracks above the rebar.]]></description>
      <pubDate>Tue, 29 Aug 2023 16:29:05 GMT</pubDate>
      <guid>https://trid.trb.org/View/2232241</guid>
    </item>
    <item>
      <title>Sodium-ion Battery Testing</title>
      <link>https://trid.trb.org/View/2186554</link>
      <description><![CDATA[Sodium-ion batteries (SIBs) have emerged on the global market and are poised to complement the ubiquitous li-ion battery (LIB). SIBs deliver a lower energy density than LIBs but utilize more globally abundant materials and boasts a higher degree of safety. The cell safety comes from less reactive cathode materials, lower cell energy density, and, in some cases, less flammable electrolytes. SIBs function much like the LIBs but with larger alkali ions. The larger alkali ion prevents the use of conventional graphite anodes, commonly replaced with hard carbon. Other material compatibility differences result in a wide range of active and passive materials present in SIBs. The wide range of material components make safety risk assessment difficult. Herein the authors utilize accelerating rate calorimetry and electrochemical analysis to characterize cell safety under storage and transport conditions. This analysis will compare the properties between sodium and lithium batteries.]]></description>
      <pubDate>Wed, 31 May 2023 10:16:09 GMT</pubDate>
      <guid>https://trid.trb.org/View/2186554</guid>
    </item>
    <item>
      <title>Hardware-in-the-Loop Testing for Electrochemical Cells in Hybrid Electric Vehicles</title>
      <link>https://trid.trb.org/View/1806547</link>
      <description><![CDATA[Hardware-in-the-Loop (HWIL) testing is a means for validating and verifying component designs in a system context. Most current HWIL work with electrochemical systems for automotive applications has focused on the pack level, providing valuable feedback to system designers. Further benefits are realized by implementing this concept earlier in the development process; applying test vectors to an individual cell, but attenuating the stimulus and feedback to pack levels. This paper reports on a cell-level HWIL system designed to evaluate electrochemical cells and associated subsystems for advanced hybrid-electric vehicles (HEVs). The architecture of the system is described along with an example of its application applied to a commercially available supercapacitor and a state-of-charge algorithm in an HEV-based configuration.]]></description>
      <pubDate>Thu, 15 Dec 2022 14:15:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/1806547</guid>
    </item>
    <item>
      <title>Evaluation of Order Reduction Techniques for Porous Electrode Diffusion Equation in Lithium Ion Model</title>
      <link>https://trid.trb.org/View/1830681</link>
      <description><![CDATA[Models for lithium ion batteries based on electrochemical thermal principles approximate electrodes with spheres. Ion concentration in the spheres is described using Fick's second law with partial differential equations (PDE), which can be solved numerically. The model calculation time, especially the electrode ion concentration part, should be reduced as less as possible for real time control purposes. Several mathematical methods have been proposed to reduce the complexity of PDE in electrode particles which include polynomial approximation, proper orthogonal decomposition (POD), Padé approximation, Galerkin reformulation and etc. These methods are compared to each other with different input current density. Then, selected method is further integrated into a reduced order model (ROM) for a complete battery that considers Li ion concentration, potentials in electrode and electrolyte. Evaluation of simulation results reveal that the 3rd order Padé approximation serves as a better computationally efficient replacement for the diffusion equation in lithium ion battery model.]]></description>
      <pubDate>Thu, 28 Apr 2022 15:42:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/1830681</guid>
    </item>
    <item>
      <title>Toward a Corrosion Proof Braking System</title>
      <link>https://trid.trb.org/View/1745900</link>
      <description><![CDATA[The manuscript firstly overviews the corrosion potentials of several components used in disk-brake systems. Particular attention is devoted to the couplings between materials with different nobility. It is demonstrated that if two materials: a) show a difference in their corrosions potential (Ecorr) >100mV; and b) are in electric contact in the presence of an electrolyte; they can form a galvanic couple (GC) which could undergo severe corrosive phenomena. In the second part, the paper focuses on the anodized Aluminium (ANOD-Al)-stainless steel (SS) GC. This couple is investigated since: 1) anodized Al and SS are often comprised in high-end braking systems and typically constitute the caliper body (anodized Al) and several components (springs, pins, screws, metal plates, rods, shims etc.) included; and 2) it shows one of the largest corrosion potential difference among all materials included in a braking system (>500mV). As a consequence, the ANOD-Al-SS appears to be one of the most strategic GC whose careful electrochemical investigation will allow the development of future corrosion-proof braking systems. Addressing this point, the manuscript investigates the effect on the corrosion rate of the distance (d) and the area ratio (Aratio) between anodized ANOD-Al and SS components using a suitable model system. This approach allows for the first time to obtain design rules based on the corrodibility of different materials with the final aim of customizing the corrosion protection of each brake system component.]]></description>
      <pubDate>Tue, 17 Nov 2020 18:51:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/1745900</guid>
    </item>
    <item>
      <title>Rust Is Not a Must. Improvement of Discs Corrosion Resistance by Tuning of Grey Cast Iron Alloying Elements and Microstructure</title>
      <link>https://trid.trb.org/View/1745901</link>
      <description><![CDATA[The manuscript reports about the corrosion performance of a series of grey cast iron specimens including an increasing concentration of Aluminum as alloying element. An improved corrosion resistance for %Al >1%wt is demonstrated and a reasonable corrosion mechanism is proposed as well. Electrochemical techniques allow to calculate a particularly high corrosion potential (Ecorr) for the sample including 4%wt Al, equals to -572 mV vs. Saturated Calomel Electrode (SCE). The manuscript is aimed at demonstrating that the fine tuning of alloying elements in cast iron is a particularly effective method in order to improve its corrosion resistance, thus allowing the development of future disc-brake rotors with a prolonged operating life.       ]]></description>
      <pubDate>Tue, 17 Nov 2020 18:51:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/1745901</guid>
    </item>
    <item>
      <title>Anodization: Recent Advancements on Corrosion Protection of Brake Calipers</title>
      <link>https://trid.trb.org/View/1745899</link>
      <description><![CDATA[Brake calipers for high-end cars are typically realized using Aluminum alloys, with Silicon as the most common alloying element. Despite the excellent castability and machinability of Aluminum-Silicon alloys (AlSix), anodization is often required in order to increase its corrosion resistance. This is particularly true in Chlorides-rich environments where Aluminum can easily corrode. Even if anodization process is known for almost 100 years, anodization of AlSix -based materials is particularly challenging due to the presence of eutectic Silicon precipitates. These show a poor electric conductivity and a slow oxidation kinetics, leading to inhomogeneous anodic layers. Continuous research and process optimization are required in order to develop anodic layers with enhanced morphological and electrochemical properties, targeting a prolonged resistance of brake calipers under endurance corrosive tests (e.g. >1000 hours Neutral Salt Spray (NSS) tests). In this manuscript a lab-scale anodization setup is used to investigate the interplay between process parameters, oxide layer morphology and corrosion protection capability. The influence of high anodization steps (AS) and low rest steps (RS) in pulsed anodization waveforms is investigated with respect to the homogeneity and compactness of the obtained oxide layers. In comparison with a conventional set of anodization parameters, which is taken as a standard, the following level of performance are achieved: 1) increase of the corrosion potential (Ecorr) of +98mV; 2) increase of the anodic breakdown potential (Ebp) of +362mV; 3) reduction of the corrosion rate of a factor six; and 4) a polarization resistance 1.5 times higher. This work identifies key parameters in the anodization of Aluminum-Silicon alloys and propose new electrochemical figures of merit in order to: a) extend the corrosion resistance of future braking systems; and b) evaluate ex-situ the anodic layer electrochemical performance.]]></description>
      <pubDate>Tue, 17 Nov 2020 18:51:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/1745899</guid>
    </item>
    <item>
      <title>Fundamental Mechanochemistry-based Detection of Early Stage Corrosion Degradation of Pipeline Steels</title>
      <link>https://trid.trb.org/View/1729887</link>
      <description><![CDATA[Corrosion of underground natural gas and liquid petroleum pipelines occurs by a variety of forms and requires specialized methods to detect and control. Stress corrosion cracking (SCC) is a form of corrosion that results in clusters or colonies of cracks on the surface of the affected pipelines. While the three conditions necessary for SCC (metal susceptibility, critical service stress and potent environment) are well understood, SCC remains as a leading operational safety concern. During SCC, the majority of the life of a pipe remains within the nucleation stage, wherein micro-damage is percolating very slowly, and below detection thresholds for commonly deployable nondestructive evaluation techniques. Utilizing their integrated understanding for electrochemical transport current, stress, and morphology evolution during SCC early stage damage percolation in pipeline steel, the university plans to develop and characterize two complementary methods that are expected to provide quantitative measure of the damage level during the early stage of SCC, and thereby render a safe operational condition of the pipeline. This framework relies on a model based prediction of the onset and progression of SCC subsurface damage to enable the development of testing methodologies for accurate measurements of corrosion depth and extent of initial shallow cracks. The methodologies utilize: (i) electrochemical impedance spectroscopy (EIS). Intergranular corrosion penetration and stress corrosion crack length are manifested by particular features of the impedance spectra. Aided by the modeling framework, geometrical descriptors of corrosion can be determined directly from impedance spectra; and (ii) tailored 4-point probe (4PB) resistance/impedance measurements. The author has observed extensive lattice damage in the near surface layer. The preliminary measurement of 4PB showed subtle changes in the measured electrical resistance. A tailored 4PB with optimized configuration and electronic circuit will be developed to measure the changes in electrical resistance of near surface layer as a function of the corrosion environment and history. Aided by geometric modeling of corroded cross section, geometrical descriptors of corrosion can be determined from the measured changes of electrical resistance. The complementary techniques would provide quantitative measure of the extent of subsurface damage, grain boundary grooving and early stage percolation of shallow cracks to enable further development of NDE corrosion detection techniques. The team spans several disciplines with diverse expertise in fracture and fatigue damage evolution (Bastawros), electrochemistry (Hebert) micro- and nano-measurements (Shrotriya), NDE for pipelines in-line inspection (Bond), and leverages the support and ongoing work with BP and others on pipe monitoring. This work leverages the provided sample set in a previous CAAP project by Kiefner and Associates. The model guided phenomenological understanding of the SCC mechanochemistry, and the quantifiable laboratory measurements of such degradation at different stages, will assist in the development of future deployable NDE methodology for the detection and monitoring of the early stage of SCC. These insights will enhance the operator ability to monitor changes in parameters germane to the corrosion prevention, while mitigating the corrosion impact on the pipeline sector.]]></description>
      <pubDate>Sat, 29 Aug 2020 20:01:01 GMT</pubDate>
      <guid>https://trid.trb.org/View/1729887</guid>
    </item>
    <item>
      <title>Regeneration of Cathode Mixture Active Materials Obtained from Recycled Lithium Ion Batteries</title>
      <link>https://trid.trb.org/View/1701887</link>
      <description><![CDATA[The recycling of rechargeable Lithium-ion batteries (LIBs) has attracted more attention in the past few years due to its tremendous advantages to the economy and environment. However, none of the currently developed recycling processes are completely economical for all types of LIBs. If the electrode active materials of spent LIBs can be effectively separated and directly regenerated to build new LIBs, the LIBs’ recycling process may become economical. Since all types of LIBs are usually recycled at the same time without sorting them considering the types of electrodes and manufacturers, the separation of electrodes materials in the filter cake, as the product of the recycling facilities becomes crucial. In this paper, we show that the anode and cathode mixture materials in the filter cake can be easily and effectively separated, and the resulted cathode mixture materials can be directly regenerated to be used to build new LIBs with multiple intercalating cathode materials. The proposed process starts with separating the cathode mixture and anode materials by adopting Stokes’ law for mineral separation; then, the separated cathode mixture is regenerated through a process involving heat treatment and lithiation. The experimental results confirm that (a) the complete and rapid separation of the anode and cathode mixture materials from each other are possible, (b) the cathode mixture can be regenerated, and (c) the capacity of the half-cells built from both regenerated cathode mixture and fresh cathode mixture materials are relatively close to each other. This research is continuing to evaluate the cycling and calendar life of the regenerated cathode mixture as well as the performance of the blended and fresh cathode mixture materials.       ]]></description>
      <pubDate>Fri, 19 Jun 2020 14:19:26 GMT</pubDate>
      <guid>https://trid.trb.org/View/1701887</guid>
    </item>
    <item>
      <title>Direct active cell balancing with integrated cell monitoring</title>
      <link>https://trid.trb.org/View/1678063</link>
      <description><![CDATA[In this study, an active battery balancing system is proposed, which allows direct energy transfer between arbitrary cells within a cell stack with simultaneous cell monitoring. The energy transfer utilises only one energy storage for the balancing process of the whole stack. Furthermore, the design enables the reduction of required sensors to only one voltage and one current sensor for full individual cell monitoring. The proposed system can be implemented in any battery application where cell balancing is mandatory, e.g. in lithium-based battery systems due to their strict operation limits. The proposed balancing system is validated through simulation and experimental measurements. The results confirm the proposed concept design.]]></description>
      <pubDate>Mon, 03 Feb 2020 07:56:53 GMT</pubDate>
      <guid>https://trid.trb.org/View/1678063</guid>
    </item>
    <item>
      <title>Design of an energy storage system with blended of Li-ion batteries for pure electric vehicle of high performance</title>
      <link>https://trid.trb.org/View/1595197</link>
      <description><![CDATA[The state of art in Li-ion cells has one technologic gap to find in the same cell all requirements of performance to a vehicle that need high impulse and high autonomy combined. Certain Li-ion cells have characteristics of high energy density that exhibit high voltage and high rate capability, but have poor cycling and low power capacity. Alternately, other types of cells have high power density exhibit good thermal stability, good cycling, and high rate regime operation characteristics but have low rate capability and low voltage. Blending different cathode Li-ion cells in the same Energy Storage System is a new approach to design the better batteries for Pure Electric Vehicle of High Performance. This paper is intended to develop an Energy Storage System that take the advantage of the unique properties of each electric type of Li-ion cell and optimize its performance with respect to the automotive operating requirements. Therefore is presented the constrain requirements for selection of the batteries, the performance results, the thermal design considerations, the differences of strategies of state estimators and balancing of charge, the differences in hardware of battery management system as well as are discussed the energy balance during determined drive cycle operation. Several simulations based in model based design was performed considering the differences in the parameterization of each type Li-ion cells as well several laboratory tests have realized for validation of the design.       ]]></description>
      <pubDate>Thu, 23 May 2019 10:23:21 GMT</pubDate>
      <guid>https://trid.trb.org/View/1595197</guid>
    </item>
    <item>
      <title>Invited Student Paper ‒ Examination of Electrochemical Methodologies to Determine Corrosion of Galvanized Steel Used for Mechanically Stabilized Earth Walls</title>
      <link>https://trid.trb.org/View/1572254</link>
      <description><![CDATA[The corrosion of galvanized steel used for mechanically stabilized earth (MSE) walls was studied with electrochemical techniques consisting of linear polarization resistance (LPR), Tafel plots, or their combination. The corrosion occurred with the galvanized steel embedded in coarse-grain and fine-grain soils during a nine-month period. The corrosion rate of galvanized steel was primarily acquired with a current-voltage diagram representing the intersection of the Zn dissolution, or anodic reaction, with the corresponding oxygen reduction, or cathodic reaction. The effect of the nearness of the voltage to the intersection (i.e., overpotential, 30 and 130mV) on the corrosion rate measurement was evaluated. The Zn layer and the Zn/Fe interface were also characterized by a scanning electron microscope (SEM). The extent of the corroded Zn acquired with the SEM were evaluated with data obtained from electrochemical measurements and preliminary results of the ongoing study are summarized.]]></description>
      <pubDate>Fri, 01 Mar 2019 15:50:51 GMT</pubDate>
      <guid>https://trid.trb.org/View/1572254</guid>
    </item>
    <item>
      <title>Assessment of In-situ Corrosion Conditions at Nevada Mechanically Stabilized Earth Wall Sites: Using Electrochemical Soil Characteristics and Linear Polarization Resistance</title>
      <link>https://trid.trb.org/View/1539917</link>
      <description><![CDATA[The inability of soil to provide sufficient tensile strength presents challenges for soils being used as a structural building material. However, it is possible to improve the structural performance with the inclusion of a reinforcing system. The development of these systems has been a major advancement of the civil engineering practice. Mechanically stabilized earth (MSE) wall systems typically consist of a: concrete facing panel, specified backfill, reinforcing elements, and the retained fill. The interaction of the backfill with the reinforcements, and the reinforcements with the facing panels, produces a system that when properly designed, can be a cost effective engineering solution. In Nevada there are over 150 MSE walls that have been constructed using metallic reinforcements (Thornley 2009). Corrosion of metallic elements a naturally occurring electrochemical process is irreversible and inevitable. The rate of metal loss (corrosion) is a function of the environmental conditions and metal type. For MSE walls key parameters include the backfill’s: salt content, organic content, saturation level, as well as the metal type of the reinforcements. Nevada has two previous corrosion investigations, an extensive site investigation at I-515/ Flamingo Rd. and a statistical analysis of as-built soil records along with a preliminary investigation for I-15/ Cheyenne Blvd. These studies form the foundation for this investigation of in-situ corrosion conditions. Seven MSE wall sites were investigated using electrochemical backfill characterization and linear polarization resistance (LPR) corrosion rate monitoring. Evaluation of electrochemical backfill characteristics has resulted in the discovery of six sites that fail current Nevada Department of Transportation/American Association of State Highway and Transportation Officials (NDOT/AASHTO) MSE wall backfill requirements. The in-situ soil samples collected and analyzed more than doubled the available data used to describe the corrosiveness of the backfill. Linear polarization resistance corrosion rates were obtained for more than 200 different elements. These data suggest that despite the aggressive nature of the backfill, most elements are preforming well and are below the anticipated rates. However, several elements were discovered with corrosion rates in excess of five times the design model. The use of the LPR corrosion monitoring has concluded that the conditions at I-15/ and Cheyenne Blvd. are equivalent to or worse than the conditions evaluated in 2004 at the I-515/ Flamingo Rd. complex. The discoveries at Flamingo Rd. led to remediation of the largest wall at the complex. Through the use of electrochemical backfill characteristics and LPR corrosion rates, the seven sites investigated have been ranked. The rankings are dependent on several factors such as backfill electrochemical conditions and comparison of corrosion rates data with design models. This study has confirmed that observations of conditions along the exterior of the wall are not sufficient when determining the condition of the soil reinforcements. Routine corrosion monitoring is required to monitor the depletion of the soil reinforcements and should be incorporated into a Long-term Corrosion Monitoring and Asset Management Plan (LCMAMP). It is anticipated that a program will be integrated into Nevada’s current asset management systems. The development and implementation of LCMAMP, directly reflects the federal initiative for systematic detailed evaluation of critical assets, Moving Ahead for Progress in the 21st Century Act (MAP-21).]]></description>
      <pubDate>Thu, 13 Sep 2018 09:13:01 GMT</pubDate>
      <guid>https://trid.trb.org/View/1539917</guid>
    </item>
    <item>
      <title>Influence of reinforcement mesh configuration for improvement of concrete durability</title>
      <link>https://trid.trb.org/View/1485581</link>
      <description><![CDATA[Steel bar in concrete structures under harsh environmental conditions, such as chlorine corrosion, seriously affects its service life. Bidirectional electromigration rehabilitation (BIEM) is a new method of repair technology for reinforced concrete structures in such chloride corrosion environments. By applying the BIEM, chloride ions can be removed from the concrete and the migrating corrosion inhibit can be moved to the steel surface. In conventional engineering, the concrete structure is often configured with a multi-layer steel mesh. However, the effect of the BIEM in such structures has not yet been investigated. In this paper, the relevant simulation test is carried out to study the migration law of chloride ions and the migrating corrosion inhibitor in a concrete specimen with complex steel mesh under different energizing modes. The results show that the efficiency of the BIEM increases 50% in both the monolayer steel mesh and the double-layer steel mesh. By using the single-sided BIEM, 87% of the chloride ions are removed from the steel surface. The different step modes can affect the chloride ion removal. The chloride ions within the range of the reinforcement protective cover are easier to be removed than those in the concrete between the two layers of steel mesh. However, the amount of migrating corrosion inhibitor is larger in the latter circumstances.]]></description>
      <pubDate>Thu, 16 Nov 2017 08:23:58 GMT</pubDate>
      <guid>https://trid.trb.org/View/1485581</guid>
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