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

J. Nakamura, H. Mizuno, T. Iyoda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationEASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
EditorsChien Ming Wang, Sritawat Kitipornchai, Vinh Dao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1955-1965
Number of pages11
ISBN (Print)9789811580789
DOIs
Publication statusPublished - 2021
Event16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia
Duration: 2019 Dec 32019 Dec 6

Publication series

NameLecture Notes in Civil Engineering
Volume101
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

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

Keywords

  • Carbonation
  • Ground granulated blast furnace slag
  • Mass transfer resistance
  • Pore structure
  • Water permeability

ASJC Scopus subject areas

  • Civil and Structural Engineering

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