Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT

Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT

Cenospheres have been recently applied to increase the volume of uniform micropores in hardened cementitious materials. Therefore, application of micro-CT to cenosphere-containing binders will help better understand the micropores formed by cenospheres in the hardened materials. Accordingly, the pre...

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Main Authors: Seyoon Yoon, Inhwan Park
Format: Article
Language:English
Published: Hindawi Limited 2017-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2017/3892683
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spelling doaj-cca39da666334150afa0505eab590c6f2020-11-24T22:31:51ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/38926833892683Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CTSeyoon Yoon0Inhwan Park1Department of Civil Engineering, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of KoreaDepartment of Civil Engineering, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of KoreaCenospheres have been recently applied to increase the volume of uniform micropores in hardened cementitious materials. Therefore, application of micro-CT to cenosphere-containing binders will help better understand the micropores formed by cenospheres in the hardened materials. Accordingly, the present study prepared Portland cement paste, alkali-activated fly ash/silica fume, and alkali-activated fly ash with 60% weight replacement by cenospheres and reconstructed their micropore structures using micro-CT. From the pore structure, individual micropores were extracted and analyzed using the principal moment ratios (I11/I33 and I22/I33). Based on the moment ratios, the representative pore shapes were determined in the different pore-volume ranges. Four-factor pore compliance contribution (4-factor PCC) model was then applied to predict the influences of the micropores on the elastic moduli of the micropore/matrix composites.http://dx.doi.org/10.1155/2017/3892683
collection DOAJ
language English
format Article
sources DOAJ
author Seyoon Yoon
Inhwan Park
spellingShingle Seyoon Yoon
Inhwan Park
Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
Advances in Materials Science and Engineering
author_facet Seyoon Yoon
Inhwan Park
author_sort Seyoon Yoon
title Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
title_short Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
title_full Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
title_fullStr Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
title_full_unstemmed Micropore Structures in Cenosphere-Containing Cementitious Materials Using Micro-CT
title_sort micropore structures in cenosphere-containing cementitious materials using micro-ct
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2017-01-01
description Cenospheres have been recently applied to increase the volume of uniform micropores in hardened cementitious materials. Therefore, application of micro-CT to cenosphere-containing binders will help better understand the micropores formed by cenospheres in the hardened materials. Accordingly, the present study prepared Portland cement paste, alkali-activated fly ash/silica fume, and alkali-activated fly ash with 60% weight replacement by cenospheres and reconstructed their micropore structures using micro-CT. From the pore structure, individual micropores were extracted and analyzed using the principal moment ratios (I11/I33 and I22/I33). Based on the moment ratios, the representative pore shapes were determined in the different pore-volume ranges. Four-factor pore compliance contribution (4-factor PCC) model was then applied to predict the influences of the micropores on the elastic moduli of the micropore/matrix composites.
url http://dx.doi.org/10.1155/2017/3892683
work_keys_str_mv AT seyoonyoon microporestructuresincenospherecontainingcementitiousmaterialsusingmicroct
AT inhwanpark microporestructuresincenospherecontainingcementitiousmaterialsusingmicroct
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