2020
DOI: 10.3390/ma13163523
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Acoustic Emission for Determining Early Age Concrete Damage as an Important Indicator of Concrete Quality/Condition before Loading

Abstract: Phenomena occurring during the curing of concrete can decrease its mechanical properties, specifically strength, and serviceability, even before it is placed. This is due to excessive stresses caused by temperature gradients, moisture changes, and chemical processes arising during the concreting and in hardened concrete. At stress concentration sites, microcracks form in the interfacial transition zones (ITZ) in the early phase and propagate deeper into the cement paste or to the surface of the element. Microc… Show more

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Cited by 15 publications
(11 citation statements)
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“…Impact-echo [ 51 ] and impulse response [ 52 ] methods, which rely on the analysis of the flow time of a mechanically excited wave in the tested medium (concrete), can also be used to assess the continuity of the reinforcement. The acoustic emission (AE) method is also more and more widely used [ 53 , 54 , 55 ]. It consists of the analysis of differences in the acoustic wave propagation speed in reinforced concrete.…”
Section: Methodsmentioning
confidence: 99%
“…Impact-echo [ 51 ] and impulse response [ 52 ] methods, which rely on the analysis of the flow time of a mechanically excited wave in the tested medium (concrete), can also be used to assess the continuity of the reinforcement. The acoustic emission (AE) method is also more and more widely used [ 53 , 54 , 55 ]. It consists of the analysis of differences in the acoustic wave propagation speed in reinforced concrete.…”
Section: Methodsmentioning
confidence: 99%
“…Phenomena occurring during the curing of concrete can decrease its mechanical properties, specifically its strength and serviceability, even before it is placed [ 36 ]. This is due to excessive stresses caused by temperature gradients, moisture changes, and chemical processes arising during the concreting and in hardened concrete.…”
Section: Description Of the Articles Presented In The Issuementioning
confidence: 99%
“…The acoustic emission-based method presented in this paper allows damage detection and identification in the early age of concrete (before loading) for different concrete compositions, curing conditions, temperature variations, and in reinforced concrete. As such, this method is an objective and effective tool for damage process detection [ 36 ].…”
Section: Description Of the Articles Presented In The Issuementioning
confidence: 99%
“…Ultrasonic wave transmission techniques focus on determining different stages during the CBMs structure formation; they especially focus on the setting (initial and final setting times) and early age mechanical properties [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Acoustic emission techniques are used to detect cement particles’ settlement, segregation, cavitation, migration of water, the formation of hydrates, and early micro-cracking of CBMs in a fresh state and during the solidification process [ 14 , 15 , 16 , 17 , 18 ]. Measurement of time-dependent electrical conductivity provides information on early age mechanical properties and different stages during the CBMs structure formation; the influence of aggregate and properties of the interfacial transition zone can be estimated as well [ 8 , 19 , 20 , 21 , 22 , 23 ].…”
Section: Introductionmentioning
confidence: 99%