TY - GEN
T1 - Influence of pore structure changed by carbonation using GGBFS cement on water permeability
AU - Nakamura, J.
AU - Mizuno, H.
AU - Iyoda, T.
N1 - Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2021.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Carbonation
KW - Ground granulated blast furnace slag
KW - Mass transfer resistance
KW - Pore structure
KW - Water permeability
UR - http://www.scopus.com/inward/record.url?scp=85104158622&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85104158622&partnerID=8YFLogxK
U2 - 10.1007/978-981-15-8079-6_180
DO - 10.1007/978-981-15-8079-6_180
M3 - Conference contribution
AN - SCOPUS:85104158622
SN - 9789811580789
T3 - Lecture Notes in Civil Engineering
SP - 1955
EP - 1965
BT - EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
A2 - Wang, Chien Ming
A2 - Kitipornchai, Sritawat
A2 - Dao, Vinh
PB - Springer Science and Business Media Deutschland GmbH
T2 - 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Y2 - 3 December 2019 through 6 December 2019
ER -