Assessment of Damage and Expansion

Leemann, Andreas; Menéndez, Esperanza; Sanchez, Leandro

doi:10.1007/978-3-030-44014-5_2

Cited by 2 publications

(3 citation statements)

References 22 publications

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“…We can confirm from Fig. 14 that the different relationship between elastic modulus reductions and expansions can be obtained with each experimental set up as discussed in the previous research works (Giaccio et al 2008;Leemann et al 2021). And in Fig.…”

Section: Relationship Between Elastic Modulus and Expansionsupporting

confidence: 70%

“…As pointed out by previous research works (Giaccio et al 2008;Leemann et al 2021), the degree of reduction of mechanical parameters with the increase of ASR expansions can have a wide variation due to the mineralogy of the rock, the size of the aggregate, the reaction kinetics, etc., because of the different progresses in macro-and micro-cracks. And most of the previous discussions treated the reductions as "progressing" deterioration, and little research mentioned the possibility of the recovery of the mechanical properties (Gautam 2016).…”

Section: Relationship Between Mechanical Properties and Expansion Reported By Previous Studiesmentioning

confidence: 94%

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Time-dependent Effect of Expansion due to Alkali-silica Reaction on Mechanical properties of Concrete

Joo

Yang

et al. 2021

ACT

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This study investigates the time-dependent mechanical properties of concrete deteriorated by the alkali-silica reaction (ASR). Previous analytical and experimental studies have indicated the positive impact of ASR gel in the cracks against mechanical damage in concrete. To study the effects of ASR gel on cracked concrete, groups of cylinder specimens with different expansion levels were prepared and tested at different material ages. The compression test results showed that the deteriorated elastic modulus of the specimens could be recovered over time. Mechanical property data from the other ASR studies were collected and assessed to observe similar trends across the literature. It was observed that the recovery of the elastic modulus also occurred in previously reported experiments. The recovery of the elastic modulus is assumed to be due to the time-dependent chemical and physical properties of ASR gel, which fills the cracks. Moreover, the data indicated that parameters other than material age and expansion could be attributed to the time-dependent mechanical properties of concrete affected by ASR.

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Section: Relationship Between Elastic Modulus and Expansionsupporting

confidence: 70%

Section: Relationship Between Mechanical Properties and Expansion Reported By Previous Studiesmentioning

confidence: 94%

Time-dependent Effect of Expansion due to Alkali-silica Reaction on Mechanical properties of Concrete

Joo

Yang

et al. 2021

ACT

View full text Add to dashboard Cite

show abstract

“…Depending on the environmental conditions (temperature, humidity, alkali concentration and availability), ASR can lead to widespread and pervasive cracking through a concrete structure, within a time scale of years or decades, potentially jeopardizing its integrity, durability and functionality [2]. ASR damage usually appears as interconnected crack networks throughout the entire structure, which become also visible on the external surfaces [3].…”

Section: Introductionmentioning

confidence: 99%