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Sensitivity analysis of the deterioration of concrete strength in marine environment to multiple corrosive

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 175-190 doi: 10.1007/s11709-021-0791-z

Abstract: The corrosion degradation behavior of concrete materials plays a crucial role in the change of its mechanical properties under multi-ion interaction in the marine environment. In this study, the variation in the macro-physical and mechanical properties of concrete with corrosion time is investigated, and the source of micro-corrosion products under different salt solutions in seawater are analyzed. Regardless of the continuous hydration effect of concrete, the damage effects of various corrosive ions (Cl–, SO42−, and Mg2+, etc.) on the tensile and compressive strength of concrete are discussed based on measurement in different salt solutions. The sensitivity analysis method for concrete strength is used to quantitatively analyze the sensitivity of concrete strength to the effects of each ion in a multi-salt solution without considering the influence of continued hydration. The quantitative results indicate that the addition of Cl– can weaken the corrosion effect of SO42− by about 20%, while the addition of Mg2+ or Mg2+ and Cl– can strengthen it by 10%–20% during a 600-d corrosion process.

Keywords： sensitivity analysis     concrete strength     corrosion deterioration     multi-ion interaction     marine environment    

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Environmental deterioration of farmlands caused by the irrational use of agricultural technologies

Xubin Pan,Zhongkui Luo,Yongbo Liu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0865-7

Abstract: agricultural technologies could bring only short-term economic benefits but leave long-term environmental deterioration

Keywords： agricultural film     groundwater exploitation     food security     environmental cost    

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Safety Guarantee Measures for Subsea Shield Tunnel Segments Based on Life Cycle Deterioration Analysis

Liu Sijin,He Chuan,Sun Qi and Feng Kun

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 52-60 doi: 10.15302/J-SSCAE-2017.06.008

Abstract: Based on an analysis of existing research into segment joint erosion and deterioration, a tunnel serviceseawater pressure infiltration and chloride ion erosion and migration, a model analyzing the erosion and deteriorationThe law governing the progressive erosion and deterioration of the segment joints of subsea tunnels overThe effects of seawater pressure and ion concentration on the erosion, deterioration, and steel corrosionBased on the analysis of erosion and deterioration over the entire life cycle, economic and rational

Keywords： shield tunnel     safety guarantee     deterioration analysis     ion erosion     segment joint    

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Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 153-165 doi: 10.1007/s11709-012-0153-y

Abstract: It has been found that the strength deterioration of improved soil in deep mixing method is due to 1)

Keywords： soil solidification     ground environment     strength deterioration     pH     oxidation-reduction potential (ORP)    

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Evaluating effect of chloride attack and concrete cover on the probability of corrosion

Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 379-390 doi: 10.1007/s11709-013-0223-9

Abstract: Corrosion of reinforced concrete (RC) structures is one of the significant causes of deterioration of

Keywords： concrete     chloride     reinforcement     corrosion     deterioration     cover    

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Alkali-silica Reaction and Alkali-carbonate Reaction

Tang Mingshu

Strategic Study of CAE 2000, Volume 2, Issue 1,   Pages 34-40

Abstract: chemical reaction between the reactive aggregate and alkali causes serious expansion and results in the deterioration

Keywords： alkali     aggregate     silica     carbonate     concrete deterioration     mechanism    

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Heat transfer with water flowing upward in a tube for pressures up to supercritical region

Yuzhou CHEN, Chunsheng YANG, Shuming ZHANG, Minfu ZHAO, Kaiwen DU,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 358-365 doi: 10.1007/s11708-009-0071-4

Abstract: Significant deterioration in heat transfer was observed in both subcritical and supercritical region

Keywords： heat transfer     deterioration     buoyancy     supercritical water    

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Fully stochastic analysis method for structural time-independent reliability

Du Bin,Xiang Tianyu,Zhao Renda

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 108-112

Abstract:

In order to effectively evaluate existed bridges' reliability, the effect of bridge service time on bridge reliability was considered. To extend the so-called semi-stochastic process model for specified in the design code in analysis reliability for existing structure, assuming that the structural resistances and the action effects are independent, based on the characteristics of the resistance and action effects variation with time, considering the resistance is an independent increment process and calculating the self-revelation coefficient of resistance, an approximate algorithm of failure probability was developed. And a fully stochastic process model was developed to analysis time-dependent reliability. Through the example,this method is simple and convenient and can supply a basis for structural assessment and service life prediction.

Keywords： existing structure     stochastic process     time-dependent reliability     action effects     resistance deterioration    

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The Durability of Alkali-Activated Materials in Comparison with Ordinary Portland Cements and Concretes: A Review Review

Aiguo Wang, Yi Zheng, Zuhua Zhang, Kaiwei Liu, Yan Li, Liang Shi, Daosheng Sun

Engineering 2020, Volume 6, Issue 6,   Pages 695-706 doi: 10.1016/j.eng.2019.08.019

Abstract: According to the calcium (Ca) concentration of the raw materials, this paper interprets the deterioration

Keywords： Alkali-activated materials     Geopolymer     Durability     Ordinary Portland cement     Deterioration mechanism    

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Ecological Barrier Deterioration Driven by Human Activities Poses Fatal Threats to Public Health due Review

Dayi Zhang,Yunfeng Yang,Miao Li,Yun Lu,Yi Liu,Jingkun Jiang,Ruiping Liu,Jianguo Liu,Xia Huang,Guanghe Li,Jiuhui Qu,

Engineering 2022, Volume 10, Issue 3,   Pages 155-166 doi: 10.1016/j.eng.2020.11.002

Abstract: activities and global industrialization on the strength of the ecological barrier, ecological barrier deterioration

Keywords： Emerging infectious diseases     Virus     Ecological barrier    

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Title Author Date Type Operation

Sensitivity analysis of the deterioration of concrete strength in marine environment to multiple corrosive

Journal Article

Environmental deterioration of farmlands caused by the irrational use of agricultural technologies

Xubin Pan,Zhongkui Luo,Yongbo Liu

Journal Article

Safety Guarantee Measures for Subsea Shield Tunnel Segments Based on Life Cycle Deterioration Analysis

Liu Sijin,He Chuan,Sun Qi and Feng Kun

Journal Article

Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Journal Article

Evaluating effect of chloride attack and concrete cover on the probability of corrosion

Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR

Journal Article

Alkali-silica Reaction and Alkali-carbonate Reaction

Tang Mingshu

Journal Article

Heat transfer with water flowing upward in a tube for pressures up to supercritical region

Yuzhou CHEN, Chunsheng YANG, Shuming ZHANG, Minfu ZHAO, Kaiwen DU,

Journal Article

Fully stochastic analysis method for structural time-independent reliability

Du Bin,Xiang Tianyu,Zhao Renda

Journal Article

The Durability of Alkali-Activated Materials in Comparison with Ordinary Portland Cements and Concretes: A Review

Aiguo Wang, Yi Zheng, Zuhua Zhang, Kaiwei Liu, Yan Li, Liang Shi, Daosheng Sun

Journal Article

Ecological Barrier Deterioration Driven by Human Activities Poses Fatal Threats to Public Health due

Dayi Zhang,Yunfeng Yang,Miao Li,Yun Lu,Yi Liu,Jingkun Jiang,Ruiping Liu,Jianguo Liu,Xia Huang,Guanghe Li,Jiuhui Qu,

Journal Article