Results 31 to 40 of about 65,414 (115)

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

Advances 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, Bing Li, Lian-ying Zhang, Chao Ma, Jiong Zhu, Ming Li, Hai Pu   +6 more
doaj   +1 more source

Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Engineering Reports
This article uses ultra‐high performance concrete (UHPC) to repair damaged concrete and analyzes the durability performance of the repaired concrete. Among them, three erosion solutions with a mass concentration of 2.8% NaCl + 0.29% Na2SO4, 5% NaCl, and ...
Shanshan Wang, Shuai Liu, Wenwu Zhang, Baolin Guo   +3 more
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CHLORIDE RESISTANCE OF NANO-PARTICLE REPAIRED CONCRETE

Acta Polytechnica CTU Proceedings, 2019
This paper describes the results of the experimentally modeled chloride ion penetration into different quality concrete structures with fully developed carbonation. Parts of concrete samples were further treated, to increase the resistance of concrete to
Rostislav Šulc, Michal Himmel, Jiří Němeček   +2 more
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Effect of Fly Ash as Cement Replacement on Chloride Diffusion, Chloride Binding Capacity, and Micro-Properties of Concrete in a Water Soaking Environment

Applied Sciences, 2020
This paper experimentally studies the effects of fly ash on the diffusion, bonding, and micro-properties of chloride penetration in concrete in a water soaking environment based on the natural diffusion law.
Jun Liu, Jiaying Liu, Zhenyu Huang, Jihua Zhu, Wei Liu, Wei Zhang   +5 more
doaj   +1 more source

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

International 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, Keun-Hyeok Yang, Seung-Jun Kwon, Ji-Won Hwang, Sang-Seob Lee, Nguyen Van Tuan   +5 more
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A Time-Variant Model for Chloride Ion Diffusion Coefficient in Concrete

Buildings
When the chloride ion concentration within concrete reaches a certain threshold, it triggers corrosion of the reinforcing steel bars, severely compromising the durability of reinforced concrete structures.
Hongliang Fang, Qiuwei Yang, Jiwei Ma, Xi Peng, Kangshuo Xia   +4 more
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A data-driven model for damage evolution of bridge stay cable

Case Studies in Construction Materials
Chloride ion concentration is crucial for the reliability of stay cables, particularly when their protective covers are compromised. Previous studies have focused on the corrosion of single wires or cables over time, proposing estimation models that ...
Guowen Yao, Qianling Wang, Fengmin Chen, Li Ying, Xuanbo He, Shengbao Zhen, Xuanrui Yu   +6 more
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Service Performance Evaluation Model of Marine Concrete Based on Physical Information Neural Network

Buildings
In this paper, an intelligent simulation method for chloride ion diffusion behavior in marine concrete is established based on a physical information neural network. The dimensionless constraint equation is constructed to solve the influence of different
Shiqi Wang, Haidong Cheng, Peihan Kong, Bo Zhang, Fuyuan Gong   +4 more
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Experiment on Chloride Ion Content of Concrete Structure in Coastal Salt-fog Area

MATEC Web of Conferences, 2016
This paper chose the south-east coastal salt-fog area Shantou to carry out the experiment study on chloride ion content of concrete structure, through the chloride ion content field test on reinforced concrete structure in Shantou, respectively for the ...
Nie Ming, Huang Hongjia, Dai Yuan, Li Wensheng, Jiang Pengxiao, Yang Weijun   +5 more
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The Evolution of Concrete Microstructure and Chloride-Ion Diffusion Coefficient Under Cyclic Axial Compression

International Journal of Concrete Structures and Materials
The changes of the microscopic pore structure for concrete under cyclic axial compression accelerate chloride-ion penetration, reducing the durability of concrete structures. To address this, a chloride-ion migration experiment for concrete was conducted
Qingzhang Zhang, Mengzhe Zhao, Li Song, Yuhang Yang, Jiaming He   +4 more
doaj   +1 more source