Results 1 to 10 of about 22,520 (120)

Five-phase Mesoscopic Numerical Simulation of Chloride Permeation Resistance in Recycled Aggregate Concrete [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2022
Considering the heterogeneity of micro-structure of recycled aggregate concrete (RAC), a five-phase model was established, which included new and old interface transition zones (ITZ), new mortar, old adherent mortar, and natural aggregate. Based on the
JIN Libing   +4 more
doaj   +1 more source

Iodide and chloride ions diffusivity, pore characterization and microstructures of concrete incorporating ground granulated blast furnace slag

open access: yesJournal of Materials Research and Technology, 2022
Innovative approaches are under research to study the resistance of chloride ion penetration in concrete containing chloride ions, to minimize the impact of chloride ion penetration test errors in coastal reinforced concrete (RC), which is helpful to the
Hesong Jin   +6 more
doaj   +1 more source

Durability Performance of Concrete with Fly Ash as Fine Aggregate Eroded by Chloride Salt

open access: yesAdvances in Materials Science and Engineering, 2022
The aim of this study is to investigate the durability of concrete with fly ash as a fine aggregate (CFA) in chloride salt environments. The natural diffusion method is used to analyze the concrete strength, chloride ion concentration, and diffusion ...
Mingjie Mao   +4 more
doaj   +1 more source

Research on the edge effect for variable voltage RCM test of concrete

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
The edge effect, resulting from possible leakage in RCM test, and causing the chloride diffusion depth in the edge part of concrete specimen greater than that in the central part, was investigated systematically to analyze its influence on the chloride ...
CHEN Junwu   +3 more
doaj   +1 more source

Durability Probabilistic Evaluation of RC Structures Subjected to Chloride Ion

open access: yesRenewable Energy and Sustainable Development, 2015
Chloride attacks concrete structures becoming a primary factor that deteriorates the durability of concrete structures. For this reason, research has been conducted on chloride ion penetration and diffusion.
Han Seung Lee   +2 more
doaj   +1 more source

The Chloride Ion Penetration Mechanism in Basalt Fiber Reinforced Concrete under Compression after Elevated Temperatures

open access: yesApplied Sciences, 2021
Chloride ion penetration frequently leads to steel corrosion and reduces the durability of reinforced concrete. Although previous studies have investigated the chloride ion permeability of some fiber concrete, the chloride ion permeability of the basalt ...
Limin Lu   +5 more
doaj   +1 more source

Analytical model for time-dependent chloride diffusion in circular section concrete

open access: yesShuili Shuiyun Gongcheng Xuebao, 2019
In order to overcome the shortcomings of the traditional analytical model of constant diffusion which can not consider the time-varying characteristics of chloride diffusion coefficient, a time-dependent analytical model for the chloride diffusion in ...
WANG Jialiang, YANG Lufeng, YU Bo
doaj   +1 more source

Research on Application Effect of Mixconverter in Cement Concrete Pavement [PDF]

open access: yesE3S Web of Conferences, 2021
In order to improve the strength of cement concrete pavement and reduce pavement cracking, the application effect of the hydration reaction enhancer Mixconverter in cement concrete pavement was studied by testing the compressive strength, bending ...
Wang Tao   +6 more
doaj   +1 more source

Chloride ion penetration behaviour in concrete containing an expansive additive and a calcium-aluminate-based additive

open access: yesActa Polytechnica CTU Proceedings, 2022
The effect of the material characteristics on the infiltration behaviour of chloride ions in concrete containing a combination of an expansive additive and a calcium-aluminate-based additive has been investigated.
Shinya Ito, Takeshi Iyoda
doaj   +1 more source

Developing an artificial neural network model to evaluate chloride diffusivity in high performance concrete

open access: yesHBRC Journal, 2013
Chloride attack is one of the major causes of deterioration of reinforced concrete structures. In order to evaluate chloride behavior in concrete, a reasonable prediction for the diffusion coefficient of chloride ion (Dc), which governs the mechanism of ...
O.A. Hodhod, H.I. Ahmed
doaj   +1 more source

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