Effectiveness of diffuse ultrasound for evaluation of micro-cracking damage in concrete

2019 ◽  
Vol 124 ◽  
pp. 105862 ◽  
Author(s):  
Eunjong Ahn ◽  
Myoungsu Shin ◽  
John S. Popovics ◽  
Richard L. Weaver
Keyword(s):  
Damage In Concrete ◽  
Diffuse Ultrasound

Detection of damage in concrete using diffuse ultrasound

2010 ◽  
Vol 127 (6) ◽  
pp. 3315-3318 ◽  
Author(s):  
Frederik Deroo ◽  
Jin-Yeon Kim ◽  
Jianmin Qu ◽  
Karim Sabra ◽  
Laurence J. Jacobs
Keyword(s):  
Damage In Concrete ◽  
Diffuse Ultrasound

Real-time localization of micro-damage in concrete beams using DIC technology and wavelet packet analysis

2021 ◽  
pp. 104198
Author(s):  
Kaiyang Zhou ◽  
Dong Lei ◽  
Jintao He ◽  
Pei Zhang ◽  
Pengxiang Bai ◽  
...  
Keyword(s):  
Real Time ◽  
Concrete Beams ◽  
Wavelet Packet ◽  
Wavelet Packet Analysis ◽  
Damage In Concrete

Numerical Investigation of Blasting-Induced Damage in Concrete Slabs

2009 ◽  
pp. 655-668 ◽  
Author(s):  
Yuan Wang ◽  
Zheming Zhu ◽  
Zhangtao Zhou ◽  
Heping Xie
Keyword(s):  
Numerical Investigation ◽  
Concrete Slabs ◽  
Damage In Concrete

scholarly journals Assessment Gravel Aggregate Reactivity With Alkalis In Relation To Methods Of Test

2014 ◽  
Vol 60 (4) ◽  
pp. 441-452
Author(s):  
Z. Owsiak ◽  
P. Czapik ◽  
J. Zapała-Sławeta
Keyword(s):  
Electron Microscopy ◽  
Deleterious Effect ◽  
X Ray Diffraction ◽  
Chemical Test ◽  
X Ray ◽  
Coarse Aggregates ◽  
Alkali Silica Reactivity ◽  
Alkali Aggregate Reactivity ◽  
Damage In Concrete ◽  
Scanning Electron

AbstractAlkali-aggregate reactivity (AAR) is one of the major causes of damage in concrete. Potential susceptibility of aggregates to this reaction can be determined using several methods. This study compares gravel alkali reactivity results obtained from different tests conducted on coarse aggregates with complex petrography. The potential for the reactivity in the aggregates was revealed in the chemical test using treatment with sodium hydroxide. Optical microscopy, scanning electron microscopy and X-ray diffraction were used to identify the reactive constituents. The expansion measured in the mortar bars test confirmed that the aggregate was potentially capable of alkali silica reactivity with consequent deleterious effect on concrete.

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