Predicting damage in aggregates due to the volume increase of the alkali-silica reaction products

Gallyamov, Emil; Leemann, Andreas; Lothenbach, Barbara; Molinari, Jean‐François

doi:10.1016/j.cemconres.2022.106744

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…The scalability with insertion of cohesive elements (Figure 3 'insertion') decreases, and starts to plateau at around 288 cores: this is due to the extra communications needed to change the topology of the mesh. Roch et al (2022), Gallyamov, Leemann, et al (2022), Gallyamov, Shakoorioskooie, et al (2022), and Gallyamov et al (2023.…”

Section: Scaling Analysismentioning

confidence: 99%

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

Richart,

Anciaux,

Gallyamov

et al. 2024

JOSS

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Section: Scaling Analysismentioning

confidence: 99%

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

Richart,

Anciaux,

Gallyamov

et al. 2024

JOSS

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“…In order to establish the link between the pressure exerted by ASR products and the consequences for the generation of cracks in aggregates and concrete, the experimental results have to be embedded into a poromechanical framework considering various effects like creep, shrinkage, cement paste elasticity, restraint and anisotropies [68,[109][110][111][112][113][114][115][116][117][118][119][120][121].…”

Section: Scenario C: Effect Of Asr Product Precipitation Enforced By ...mentioning

confidence: 99%

“…○ It has been suggested that the doubling of the volume from (dissolved) silica in the aggregates to the precipitated ASR products in confinement causes expansion [65][66][67][68]. However, no details about the driving force of expansion are provided.…”

Section: Introductionmentioning

confidence: 99%

Alkali Silica Reaction in Concrete - Revealing the Expansion Mechanism by Surface Force Measurements

Leemann,

Gora,

Lothenbach

et al. 2023

Preprint

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“…The nano-scale part of the research is omitted for brevity, and the meso-and macroscale studies are discussed. Details on the nano-scale study are available in [82].…”

Section: Subproject Vi: Numerical Modeling Of Mechanics Introductionmentioning

confidence: 99%

Alkali-silica reaction – a multidisciplinary approach

Leemann

Bagheri²,

Lothenbach³

et al. 2022

RILEM Tech Lett

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In the last four years, a multidisciplinary study involving several research groups in Switzerland tackled a number of unsolved, fundamental issues about the alkali-silica reaction (ASR) in concrete. The covered topics include SiO2 dissolution, the characterization of various ASR products formed at different stages of the reaction in both concrete and synthesis, crack formation and propagation. The encompassed scale ranges from nanometers to meters. Apart from conventional techniques, novel methods for the field of ASR have been used, e.g. combination of scanning electron microscopy with dissolution experiments, combination of focused ion beam with transmission electron microscopy, several synchrotron-based methods, synthesis of ASR products for in-depth characterization, time-lapse X-ray micro-tomography combined with contrast-enhancing measures and numerical models of ASR damage based on realistic crack patterns. Key achievements and findings are the quantification of the effect of aluminum on dissolution of different silicates, the variance in morphology and composition of initial ASR products, the differences and similarities between amorphous ASR products and calcium-silicate-hydrate, the link between temperature and the structure of the crystalline ASR products, the behavior of the crystalline ASR products at varying relative humidity, ASR propagation in 4D and numerical modelling based on realistic crack patterns.

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Predicting damage in aggregates due to the volume increase of the alkali-silica reaction products

Cited by 6 publications

References 33 publications

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

Alkali Silica Reaction in Concrete - Revealing the Expansion Mechanism by Surface Force Measurements

Alkali-silica reaction – a multidisciplinary approach

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