Modeling of alkali-silica reaction in a two phased material model

Zarina Itam, Hazran Husain

Research output: Contribution to journalArticle

Abstract

Alkali-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. Hence, the finite element technique was used to build models to study the damage propagation due to ASR. Seeing that ASR initializes in the mesoscopic regions of the concrete, the damage model for ASR at the mesoscale level is studied. The heterogeneity of the mesoscale model shows how difference in material properties between aggregates and the cementitious matrix facilitates ASR expansion. With this model mesoscopic, two-phased material model, the ASR phenomenon under thermo-chemo-hygro-mechanical loading can be understood.

Original languageEnglish
Pages (from-to)13-17
Number of pages5
JournalJurnal Teknologi
Volume76
Issue number9
DOIs
Publication statusPublished - 01 Jan 2015

Fingerprint

Silica
Concretes
Concrete construction
Materials properties
Atmospheric humidity
Porosity
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Itam, Zarina ; Husain, Hazran. / Modeling of alkali-silica reaction in a two phased material model. In: Jurnal Teknologi. 2015 ; Vol. 76, No. 9. pp. 13-17.
@article{418470516ece495da20159332ed24475,
title = "Modeling of alkali-silica reaction in a two phased material model",
abstract = "Alkali-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. Hence, the finite element technique was used to build models to study the damage propagation due to ASR. Seeing that ASR initializes in the mesoscopic regions of the concrete, the damage model for ASR at the mesoscale level is studied. The heterogeneity of the mesoscale model shows how difference in material properties between aggregates and the cementitious matrix facilitates ASR expansion. With this model mesoscopic, two-phased material model, the ASR phenomenon under thermo-chemo-hygro-mechanical loading can be understood.",
author = "Zarina Itam and Hazran Husain",
year = "2015",
month = "1",
day = "1",
doi = "10.11113/jt.v76.5637",
language = "English",
volume = "76",
pages = "13--17",
journal = "Jurnal Teknologi (Sciences and Engineering)",
issn = "0127-9696",
publisher = "Penerbit Universiti Teknologi Malaysia",
number = "9",

}

Modeling of alkali-silica reaction in a two phased material model. / Itam, Zarina; Husain, Hazran.

In: Jurnal Teknologi, Vol. 76, No. 9, 01.01.2015, p. 13-17.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Modeling of alkali-silica reaction in a two phased material model

AU - Itam, Zarina

AU - Husain, Hazran

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Alkali-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. Hence, the finite element technique was used to build models to study the damage propagation due to ASR. Seeing that ASR initializes in the mesoscopic regions of the concrete, the damage model for ASR at the mesoscale level is studied. The heterogeneity of the mesoscale model shows how difference in material properties between aggregates and the cementitious matrix facilitates ASR expansion. With this model mesoscopic, two-phased material model, the ASR phenomenon under thermo-chemo-hygro-mechanical loading can be understood.

AB - Alkali-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. Hence, the finite element technique was used to build models to study the damage propagation due to ASR. Seeing that ASR initializes in the mesoscopic regions of the concrete, the damage model for ASR at the mesoscale level is studied. The heterogeneity of the mesoscale model shows how difference in material properties between aggregates and the cementitious matrix facilitates ASR expansion. With this model mesoscopic, two-phased material model, the ASR phenomenon under thermo-chemo-hygro-mechanical loading can be understood.

UR - http://www.scopus.com/inward/record.url?scp=84943258564&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84943258564&partnerID=8YFLogxK

U2 - 10.11113/jt.v76.5637

DO - 10.11113/jt.v76.5637

M3 - Article

VL - 76

SP - 13

EP - 17

JO - Jurnal Teknologi (Sciences and Engineering)

JF - Jurnal Teknologi (Sciences and Engineering)

SN - 0127-9696

IS - 9

ER -