TY - GEN
T1 - Design of Shrinkage-Compensating Cement Concretes Resistant to Chloride Penetration
AU - Shi, Weizhuo
AU - Shafei, Behrouz
N1 - Publisher Copyright:
© Tongji University Press 2024.
PY - 2024
Y1 - 2024
N2 - Shrinkage-compensating cement is a type of calcium sulfoaluminate cement that can significantly increase the volume stability of concrete, increase the service life of structures, and thus provide a solution to mitigate the degradation of civil infrastructure. However, there has been no systematic investigation of the performance of shrinkage-compensating cement concretes under aggressive agents, specifically chloride ions, despite previous studies regarding shrinkage, shrinkage compensating cement concretes, and hydration. An extensive testing program has been established to evaluate the concretes made with various dosages of Type K expansive agent (i.e., 0, 7.5, 15, and 22.5% by weight of total cementitious materials), including mechanical, transport, and dimensional stability experiments, such as compressive strength, drying shrinkage, chloride penetration, chloride migration, electrical conductivity, and absorption. It was demonstrated in this study that low-shrinkage concretes with low chloride penetration susceptibility can potentially be produced once the needed experiments have been carried out on the improved mixtures, providing a promising next step in the development of civil infrastructures exposed to harsh environmental conditions.
AB - Shrinkage-compensating cement is a type of calcium sulfoaluminate cement that can significantly increase the volume stability of concrete, increase the service life of structures, and thus provide a solution to mitigate the degradation of civil infrastructure. However, there has been no systematic investigation of the performance of shrinkage-compensating cement concretes under aggressive agents, specifically chloride ions, despite previous studies regarding shrinkage, shrinkage compensating cement concretes, and hydration. An extensive testing program has been established to evaluate the concretes made with various dosages of Type K expansive agent (i.e., 0, 7.5, 15, and 22.5% by weight of total cementitious materials), including mechanical, transport, and dimensional stability experiments, such as compressive strength, drying shrinkage, chloride penetration, chloride migration, electrical conductivity, and absorption. It was demonstrated in this study that low-shrinkage concretes with low chloride penetration susceptibility can potentially be produced once the needed experiments have been carried out on the improved mixtures, providing a promising next step in the development of civil infrastructures exposed to harsh environmental conditions.
KW - Chloride penetration
KW - Mechanical and transport properties
KW - Shrinkage-compensating cement concrete
KW - Supplementary cementitious materials
KW - Type K expansive agent
UR - http://www.scopus.com/inward/record.url?scp=85184125811&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-3362-4_26
DO - 10.1007/978-981-99-3362-4_26
M3 - Conference contribution
AN - SCOPUS:85184125811
SN - 9789819933617
T3 - Lecture Notes in Civil Engineering
SP - 323
EP - 335
BT - Proceedings of the 6th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures
A2 - Gu, Xiang-Lin
A2 - Motavalli, Masoud
A2 - Ilki, Alper
A2 - Yu, Qian-Qian
PB - Springer Science and Business Media Deutschland GmbH
T2 - 6th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, SMAR 2022
Y2 - 7 September 2021 through 9 September 2021
ER -