Corrosion protection performance of reinforced steel coated with paints based on waste materials

Mohamed, M. I.; Ahmed, Nivin M.; El-Gawad, Walaa M. Abd

doi:10.1108/acmm-12-2017-1867

Cited by 6 publications

(4 citation statements)

References 20 publications

(14 reference statements)

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“…In Mohamed et al (2018) and Ahmed et al (2016), it was suggested to obtain anti-corrosive pigments by depositing a thin layer of ferrites on the surface of rice straw waste particles, which is subjected to incineration with environmental damage. Using various electrochemical methods, it was shown that the including such pigments it is possible to provide high protective ability of the coatings in relation to low carbon steel, and zinc ferrites showed the best anti-corrosive effectiveness.…”

Section: Novel Types Of Ferrite Pigmentsmentioning

confidence: 99%

Complex oxides – non-toxic pigments for anticorrosive coatings

Ziganshina

Степин

Карандашов

et al. 2020

ACMM

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Purpose The purpose of this paper is to search for toxic anticorrosive pigments’ substitute in protective coatings is one of the important tasks that the specialists in the field of steel corrosion face. Design/methodology/approach One of the ways to solve the problem of metal corrosion is to use complex oxides as pigments, which are characterized as low-toxic compounds and possess the ability to inhibit corrosion. Findings In the production of ferrites, it is possible to use production waste as raw material, and that makes it possible to reduce the price of the resulting product and solve environmental problems simultaneously. Originality/value Permanent growth of world production is accompanied by the increasing environment corrosiveness, associated with the intensification of air, water basin and soil pollution by industrial waste. This, as well as the continuously increasing operated metal stock, has recently made the tendency of metals’ total loss from corrosion steadily increasing. All of this points to the importance of studying corrosion processes and the systematic and effective fight against metal corrosion.

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Section: Novel Types Of Ferrite Pigmentsmentioning

confidence: 99%

Complex oxides – non-toxic pigments for anticorrosive coatings

Ziganshina

Степин

Карандашов

et al. 2020

ACMM

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“…However, it may not be possible to eliminate defects altogether (Kumar et al , 2001; Wilmot, 2006; Ho and Rahman, 2004; Bremner et al , 2001; Bakri and Mydin, 2014; Liubin et al , 2011; Mohamed et al , 2018; Qiao et al , 2014); the remedial measures for minimizing the defects of concrete structures can be used. These are adopting appropriate design, construction, utilization and maintenance; improving quality of concrete by adopting appropriate constituents selection, mix design, compaction and curing; preventing corrosion of reinforcement by increasing depth of concrete cover, coating rebars, chloride extraction, waterproofing and patch repair and upgrading supporting ground to control foundation settlement.…”

Section: Literature Reviewmentioning

confidence: 99%

Time-dependent safety performance of reinforced concrete structures

Woju

Balu

2020

JEDT

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Purpose Performance of the structure depends on design, construction, environment, utilization and reliability aspects. Other factors can be controlled by adopting proper design and construction techniques, but the environmental factors are difficult to control. Hence, mostly in practice, the environmental factors are not considered in the analysis and design appropriately; however, their impact on the performance of the structures is significant along with the design life. It is in this light that this paper aims to perform the time-dependent performance analysis of reinforced concrete structures majorly considering environmental factors. Design/methodology/approach To achieve the intended objective, a simply supported reinforced concrete beam was designed and detailed as per the Euro Code (EC2). The time-dependent design parameters, corrosion parameters, creep and shrinkage were identified through thorough literature review. The common empirical equations were modified to consider the identified parameters, and finally, the time-dependent performance of reinforced concrete beam was performed. Findings Findings indicate that attention has to be paid to appropriate consideration of the environmental effect on reinforced concrete structures. In that, the time-dependent performance of reinforced concrete beam significantly decreases with time due to corrosion of reinforcement steel, creep and shrinkage. Originality/value However, the Euro code, Ethiopian code and Indian code threat the exposure condition of reinforced concrete by providing corresponding concrete cover that retards the corrosion initiation time but does not eliminate environmental effects. The results of this study clearly indicate that the capacity of reinforced concrete structure degrades with time due to corrosion and creep, whereas the action on the structure due to shrinkage increases. Therefore, appropriate remedial measures have to be taken to control the defects of structures due to the environmental factors to overcome the early failure of the structure.

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“…Paint spray coating processes with excellent material anticorrosion properties are widely used in different processes of industrial painting, including the corrosion protections of fluid transport pipelines, such as drainage pipes [1][2][3]. The objective of anticorrosion spray coating is to adhere a paint film to a metallic surface in order to protect it from possible corrosion.…”

Section: Introductionmentioning

confidence: 99%

A CFD-DEM Simulation of Droplets in an Airless Spray Coating Process of a Square Duct

Li,

Chen,

Hong

et al. 2024

Coatings

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The purpose of this paper is to provide a numerical simulation, taking into account the collisional interactions of droplets in an airless rotary spray coating process. The hydrodynamics of gas and droplets are simulated using the CFD-discrete element method (DEM) with the JKR contact model in an airless rotary spray coating process of a horizontal square duct. The surface energy parameter used in the JKR model is calibrated using a virtual accumulation angle test in the funnel device. Based on the distribution of accumulation angles, a suitable surface energy for wall droplets is proposed. A rational gas RNG k-ε model is suggested in accordance with the comparisons of velocities, standard deviations, and the skewness of droplet number fractions from three turbulence models. The simulations of droplet film thicknesses agree with measurements from the literature regarding the film thickness along a vertical panel. The correlations of the exit gas and droplet velocities of sprayer holes are proposed with a discharge coefficient of 0.85 for gas and 5.87 for droplets. A number index of droplets is introduced in order to measure the uniformity of droplet distributions. A low droplet number index is found at low rotational speeds, representing a more uniform distribution of droplets as the rotation speeds reduce within the square duct. The normal force between the droplet and the wall is approximately an order of magnitude larger than the droplet–wall tangential force of collisions.

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Corrosion protection performance of reinforced steel coated with paints based on waste materials

Cited by 6 publications

References 20 publications

Complex oxides – non-toxic pigments for anticorrosive coatings

Complex oxides – non-toxic pigments for anticorrosive coatings

Time-dependent safety performance of reinforced concrete structures

A CFD-DEM Simulation of Droplets in an Airless Spray Coating Process of a Square Duct

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