Results 51 to 60 of about 3,497,749 (200)

Durability Assessment of Blended Concrete by Air Permeability

International Journal of Concrete Structures and Materials, 2018
Assessment of concrete cover quality is necessary for proper maintenance of concrete structures. Concrete durability is evaluated primarily based on chloride penetrability, neutralization and other external factors.
Dhruva Narayana Katpady, Hirotaka Hazehara, Masashi Soeda, Takashi Kubota, Satoshi Murakami   +4 more
doaj   +1 more source

Influence of the sample surface on the chloride ion diffusion coefficient in concrete [PDF]

, 2020
W pracy przedstawiono wyniki badań wyznaczania efektywnego współczynnika jonów chlorkowych w betonie o w/c = 0,3. Próbki betonu po 14 miesiącach twardnienia poddano 39-41 dniowemu wnikaniu jonów chlorkowych z 3% roztworu NaCl.
Kryszczyński, Artur, Kuziak, Justyna
core  

Experimental Study on Chloride Ion Diffusion in Concrete under Uniaxial and Biaxial Sustained Stress

, 2020
The existence of axial and lateral compressive stress affect the diffusion of chloride ions in concrete will lead to the performance degradation of concrete structure.
Xiaokang Cheng, Jianxin Peng, C.S. Cai, Jianren Zhang   +3 more
core   +1 more source

Chloride Ion Penetration Resistance of Reactive Powder Concrete with Mineral Admixtures

Medžiagotyra
This study employed the rapid chloride ion penetration test and the salt spray erosion method to examine electric flux changes in mineral-admixed reactive powder concrete (RPC).
Xinmin YU, Hongji ZHANG, Dehong WANG, Yanzhong JU, Mengxin KANG, Yidan MA   +5 more
doaj   +1 more source

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
doaj   +1 more source

Oxygen and cation diffusion processes in oxygen ion conductors [PDF]

, 2007
We discuss oxygen and cation diffusion processes in oxygen ion conductors. While the high oxygen diffusivity determines the proper oxygen ion conductivity, slow cation diffusion processes are important for sintering and degradation processes.
Martin, Manfred
core   +1 more source

Mesoscale simulation of chloride penetration in recycled aggregate concrete based on random convex polygon aggregate model

Alexandria Engineering Journal
The durability of recycled aggregate concrete (RAC) in the marine environment is mainly influenced by chloride attack. In this paper, the chloride transport law in RAC with different recycled coarse aggregate (RCA) contents was investigated by dry-wet ...
Libing Jin, Zhiheng Xie, Hualong Yu, Tai Fan, Pengfei Xue, Zhiyong Liu   +5 more
doaj   +1 more source

Investigation on Durability Performance in Early Aged High-Performance Concrete Containing GGBFS and FA

Advances in Materials Science and Engineering, 2017
The significance of concrete durability increases since RC (Reinforced Concrete) structures undergo degradation due to aggressive environmental conditions, which affects structural safety and serviceability.
Seung-Yup Jang, Subbiah Karthick, Seung-Jun Kwon   +2 more
doaj   +1 more source

Accelerated Chloride Ion Diffusion Test

, 1988
This paper presents a new test method for rapidly assessing the resistance of a concrete to chloride ion diffusion.
N. R. Buenfeld, Said M. El-Belbol
core   +1 more source

Cytoplasmic hydrogen ion diffusion coefficient [PDF]

, 1992
The apparent cytoplasmic proton diffusion coefficient was measured using pH electrodes and samples of cytoplasm extracted from the giant neuron of a marine invertebrate.
al-Baldawi, N.F., Abercrombie, R.F.
core   +1 more source