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Simulation of alkali-silica reaction model in a concrete gravity dam at the macroscale and mesoscale

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dc.citedby3
dc.contributor.authorItam Z.en_US
dc.contributor.authorBeddu S.en_US
dc.contributor.authorMohammad D.en_US
dc.contributor.authorKamal N.L.M.en_US
dc.contributor.authorRazak N.A.en_US
dc.contributor.authorHamid Z.A.A.en_US
dc.contributor.authorid55102723400en_US
dc.contributor.authorid55812080500en_US
dc.contributor.authorid57210595736en_US
dc.contributor.authorid56239107300en_US
dc.contributor.authorid52364538900en_US
dc.contributor.authorid57223445110en_US
dc.date.accessioned2023-05-29T07:29:35Z
dc.date.available2023-05-29T07:29:35Z
dc.date.issued2019
dc.descriptionComputer software; Concretes; Continuum damage mechanics; Silica; Stochastic systems; Alkali contents; Alkali-silica reaction; Concrete; Concrete gravity dams; Macroscales; Meso scale; Reaction modelling; Relative porosity; Relative temperatures; Silica content; Deformationen_US
dc.description.abstractAlkali-silica reaction causes major problems in concrete structures due to the rapidity of its deformation. Factors that affect ASR include the alkali and silica content, relative humidity, temperature and porosity of the concrete, making the relationship a complex phenomenon to be understood. In investigating the mechanical deformation of the structure, the theory of continuum damage mechanics proves to be a suitable method. Damage mechanics can be used to predict the physical and chemical behavior of a structure, making it an appropriate method to study the behavior of the structure under the influence of alkali-silica reactivity. Therefore solution of the damage model is critically needed to overcome the concrete deformation problem. In this research, an engineering example of a thermo-chemo-hygro-mechanical model of a concrete gravity dam at the macroscale and coupled with the mesoscale will be studied for varying environmental conditions of temperature and relative humidity. The simulation was developed using the stochastic finite element software. Investigations found that temperature, as well as relative humidity influences the latency and characteristic time constants, which dictate the rapidity of ASR expansion into the structure, rendering heterogeneous values across the cross-section of the structure according to the relative humidity and temperature distribution. � 2019 Elsevier Ltd. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.matpr.2019.06.355
dc.identifier.epage726
dc.identifier.scopus2-s2.0-85071112394
dc.identifier.spage717
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85071112394&doi=10.1016%2fj.matpr.2019.06.355&partnerID=40&md5=0824cdd8988c5a1f98b5632004aa799e
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24966
dc.identifier.volume17
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleMaterials Today: Proceedings
dc.titleSimulation of alkali-silica reaction model in a concrete gravity dam at the macroscale and mesoscaleen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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