Study on the bearing capacity and chloride ion resistance of RC structures under multi-factor corrosive environment and continuous load

Removal of Cl(−I) from acidic industrial wastewater through oxidation: a review on methods and mechanisms

“…Owing to the excellent photocatalysis performance of the Bi 7)-( 9). Finally, BiOCl will form directly from Bi 2 O 3 , e − and ˙Cl radical as shown in eqn (14). 61 After the wastewater treatment, Bi 2 O 3 is regenerated from BiOCl using sodium hydroxide (NaOH) solution as shown in eqn (15).…”

“…For example, Cl(−I) in the concrete can lead to the corrosion of steel, the expansion of concrete and the decrease in the compressive capacity, ultimately inducing damages to building structures. [13][14][15][16] Meanwhile, Cl(−I) possesses the ability of an inter-crystalline, crevice and pitting corrosion on metals through destroying the passive films composed of metallic oxide. As a result, the abnormal operations of equipment and security risks may occur.…”

Review of Chloride Ion Detection Technology in Water

“…A severely reduced Cl − intake can have negative impacts such as chronic heart failure, chronic kidney disease, liver cirrhosis, and so on [21][22][23][24]. (4) Construction and building trades: Very elevated Cl − levels in cement raw materials will reduce the strength of concrete, corrode steel bars, affect the durability of the whole building, and severely affect project quality [25][26][27]. (5) Industrial equipment: In industrial production, Cl − will corrode stainless steel equipment (such as reinforced concrete, petroleum and chemical production equipment, power plants, and some high-purity water and gas systems), preferentially adsorb oxygen atoms on the metal surface, and form soluble metal Cl − with metal ions, leading to metal corrosion, causing economic losses, and even threatening the safety of operators [19,28].…”

Theoretical Analysis of Existing Concepts to Evaluate the Non-Failure of Rc Structures in Operation

“…Based on the above, as well as the adaptation of national standards for the RC structures design (Concrete and reinforced concrete structures made of heavy concrete, DSTU, 2011), in terms of their application in the reliability theory (probabilistic calculation methods), it becomes obvious: the topicality of the problem of developing of such a methodology for assessing the non-failure of RC structures, which makes it possible to take into account the complete picture of the stochastic nature of their work, is undeniable. Moreover, based on the review of recent studies of the stress-strain state of RC structureswith damages (Voskobiinyk, 2010;Klymenko, Antoniuk & Polianskyi, 2019), under the action of an aggressive environment (Faye, 2017;Khaghanpour, Dousti & Shekarchi, 2017;Chen, Sun, Hu & Shi, 2021), taking into account the influence of RC nonlinear work (Sakhno, Lyulchenko, Yanova & Pyshchykova, 2020) or its rheological properties (Bashynska, 2019;Heraskin, Rotko & Uzhehova, 2020), as well as actual climatic loads (Pashinsky, 2015) -there is a need to develop their stochastic models.…”