Influence of pore structure changed by carbonation using GGBFS cement on water permeability

J. Nakamura, H. Mizuno, T. Iyoda

研究成果: Conference contribution

抄録

In the cement industry, ground granulated blast furnace slag, which is an admixture, is used as an effort to reduce environmental impact. There are various characteristics of ground granulated blast furnace slag which can be useful as a substitute material for cement. However, carbonation resistance is low, and it can be a problem. In this study, it was investigated the effect of carbonation using ground granulated blast furnace slag on water permeability and it was also measured the porosity by Archimedes method and mercury intrusion porosity method. It was investigated the alteration by measuring the pore structure before and after car- bonation of using ground granulated blast furnace slag. As a result, it was found that using blast furnace cement can easily permeate water after carbonation. About the influence of different curing periods, when the curing period was short, it was found that water can easily permeate in the samples. The result measured by Archimedes method showed that the porosity increased when carbonation occurred. As a result of mercury intrusion porosity method, there are many small diameter pores when carbonated, and it has a complicated pore structure. In conclusion, carbonation when using blast-furnace cement is considered to reduce the mass transfer resistance by forming a continuous pore structure.

本文言語English
ホスト出版物のタイトルEASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
編集者Chien Ming Wang, Sritawat Kitipornchai, Vinh Dao
出版社Springer Science and Business Media Deutschland GmbH
ページ1955-1965
ページ数11
ISBN(印刷版)9789811580789
DOI
出版ステータスPublished - 2021
イベント16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia
継続期間: 2019 12 32019 12 6

出版物シリーズ

名前Lecture Notes in Civil Engineering
101
ISSN(印刷版)2366-2557
ISSN(電子版)2366-2565

Conference

Conference16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
国/地域Australia
CityBrisbane
Period19/12/319/12/6

ASJC Scopus subject areas

  • 土木構造工学

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