Determination of the elastic properties of amorphous materials: case study of alkali-silica reaction gel

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dc.contributor.authorMoon, Jen_AU
dc.contributor.authorSpeziale, Sen_AU
dc.contributor.authorMeral, Cen_AU
dc.contributor.authorKalkan, Ben_AU
dc.contributor.authorClark, SMen_AU
dc.contributor.authorMonteiro, PJMen_AU
dc.date.accessioned2015-10-14T23:21:42Zen_AU
dc.date.available2015-10-14T23:21:42Zen_AU
dc.date.issued2013-12-01en_AU
dc.date.statistics2015-10-12en_AU
dc.description.abstractThe gel formed during Brillouin spectroscopy reaction (ASR) can lead to cracking and deterioration of a concrete structure. The elastic properties of the ASR gel using X-ray absorption and Brillouin spectroscopy measurements are reported. X-ray absorption was used to determine the density of the gel as a function of pressure, and the result yields an isothermal bulk modulus of 33 ± 2 GPa. Brillouin spectroscopy was applied to measure isentropic bulk (24.9–34.0 GPa) and shear moduli (8.7–10.1 GPa) of the gel. The range of values obtained is attributed to the variable composition of samples that were collected under field conditions. Results suggested that amorphous silica becomes expanded and compressible as it absorbs water molecules and alkali ions. This could explain high gel migration rates through the complex pore structures in concrete. © 2013, Elsevier Ltd.en_AU
dc.identifier.citationMoon, J., Speziale, S., Meral, C., Kalkan, B., Clark, S. M., & Monteiro, P. J. M. (2013). Determination of the elastic properties of amorphous materials: Case study of alkali-silica reaction gel. Cement and Concrete Research, 54, 55-60. doi:10.1016/j.cemconres.2013.08.012en_AU
dc.identifier.govdoc6180en_AU
dc.identifier.issn0008-8846en_AU
dc.identifier.journaltitleCement and Concrete Researchen_AU
dc.identifier.pagination55-60en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.cemconres.2013.08.012en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6331en_AU
dc.identifier.volume54en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectElasticityen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectGelsen_AU
dc.subjectPore structureen_AU
dc.subjectConcretesen_AU
dc.subjectSilicaen_AU
dc.subjectAmorphous stateen_AU
dc.subjectBrillouin effecten_AU
dc.titleDetermination of the elastic properties of amorphous materials: case study of alkali-silica reaction gelen_AU
dc.typeJournal Articleen_AU
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