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ASR expansions at the level of a single glass-cement paste interface: experimental results and proposal of a reaction-expansion mechanism
dc.contributor.author | Liaudat, Joaquín |
dc.contributor.author | Carol, Ignacio |
dc.contributor.author | López Garello, Carlos María |
dc.contributor.author | Leemann, Andreas |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2020-04-02T14:56:23Z |
dc.date.available | 2021-05-22T00:26:42Z |
dc.date.issued | 2019-09 |
dc.identifier.citation | Liaudat, J. [et al.]. ASR expansions at the level of a single glass-cement paste interface: experimental results and proposal of a reaction-expansion mechanism. "Construction and building materials", Setembre 2019, vol. 218, p. 108-118. |
dc.identifier.issn | 0950-0618 |
dc.identifier.uri | http://hdl.handle.net/2117/182962 |
dc.description.abstract | A new experimental methodology for studying ASR expansions at the level of a single aggregate-cementitious matrix interface is proposed. For this methodology, small sandwich-like specimens, with cement paste or mortar on top and bottom of a disc of soda-lime (SL) glass in the middle, are used. These specimens are placed in airtight containers with an alkaline solution and heated in an oven at 60 °C. In these conditions, ASR products are formed rapidly at the interface of the disc and the cementitious matrix, inducing length changes in the specimen which are measured regularly. The morphology and composition of the ASR products are studied by means of SEM/EDS analyses. This inexpensive and very easy to replicate methodology may provide valuable information about the ASR expansion mechanisms. The specimens developed expansions of about 30 µm before the SL glass got detached from the cement paste matrix. SEM/EDS analyses of the reaction products formed in between the SL glass and the cement paste matrix indicate calcium-to-silica molar ratios ranging between 1.0 and 1.5. Finally, based on the experimental results presented in this paper, as well as on other experimental and theoretical results found in the literature, a reaction-expansion mechanism for ASR in SL glass concrete is proposed. |
dc.format.extent | 11 p. |
dc.language.iso | eng |
dc.publisher | Elsevier |
dc.rights | © 2019. Elsevier |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
dc.subject.lcsh | Alkali silica reactions |
dc.subject.lcsh | Concrete--Deterioration |
dc.subject.other | Alkali-silica reaction |
dc.subject.other | ASR |
dc.subject.other | Concrete |
dc.subject.other | Glass |
dc.subject.other | Interface |
dc.subject.other | Durability |
dc.title | ASR expansions at the level of a single glass-cement paste interface: experimental results and proposal of a reaction-expansion mechanism |
dc.type | Article |
dc.subject.lemac | Formigó -- Deterioració |
dc.contributor.group | Universitat Politècnica de Catalunya. MECMAT - Mecànica de Materials |
dc.identifier.doi | 10.1016/j.conbuildmat.2019.05.106 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/abs/pii/S0950061819312759 |
dc.rights.access | Open Access |
local.identifier.drac | 25167036 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO/1PE/BIA2016-76543-R |
local.citation.author | Liaudat, J.; Carol, I.; Lopez, C.; Leemann, Andreas |
local.citation.publicationName | Construction and building materials |
local.citation.volume | 218 |
local.citation.startingPage | 108 |
local.citation.endingPage | 118 |
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