Shrinkage characteristics of ground granulated blast furnace slag high content cement

H. Mizuno, Takeshi Iyoda

研究成果: Conference contribution

抜粋

In recent years, global warming has become a world problem. So reduction of carbon dioxide is required in all industries against global warming. Focusing on the construction, Portland cement which is the most widely used construction material discharges large amounts of carbon dioxide during the manufacturing process. Therefore, the use of mixed cement replacing admixture materials such as ground granulated blast furnace slag and fly ash with Portland cement is receiving a lot of attention. Mixed cement has advantages such as effect of protected penetrated chloride ion, prevent of ASR, enhancement of long-term strength, etc. However, it has been reported that drying shrinkage of cement with high content of ground granulated blast furnace slag becomes large. Cracks of drying shrinkage cause decreasing resistance of the durability on concrete structures. Therefore, countermeasures to reduce drying shrinkage are essential. So we focused on fly ash in this research. In the past researches, it has been reported to reduce drying shrinkage using fly ash. So it is expected that reduction of drying shrinkage can be expected, even in cement with high replacement ground granulated blast furnace slag. Therefore, in this study, mortar with fly ash added to blast furnace slag cement was made for the purpose of reducing drying shrinkage in blast furnace slag cement, and drying shrinkage were measured. In addition, since the drying shrinkage is closely related to the pore diameter and the pore volume of the mortar, the measurement of the pores was carried out from a mercury intrusion porosimetry. And the drying shrinkage is reduced in the mortar having the high replacement rate of the ground granulated blast furnace slag. We also confirmed the effect of reducing the drying shrinkage of FA.

元の言語English
ホスト出版物のタイトルLife-Cycle Analysis and Assessment in Civil Engineering
ホスト出版物のサブタイトルTowards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
編集者Dan M. Frangopol, Robby Caspeele, Luc Taerwe
出版者CRC Press/Balkema
ページ597-603
ページ数7
ISBN(印刷物)9781138626331
出版物ステータスPublished - 2019 1 1
イベント6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018 - Ghent, Belgium
継続期間: 2018 10 282018 10 31

出版物シリーズ

名前Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018

Conference

Conference6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
Belgium
Ghent
期間18/10/2818/10/31

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

フィンガープリント Shrinkage characteristics of ground granulated blast furnace slag high content cement' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Mizuno, H., & Iyoda, T. (2019). Shrinkage characteristics of ground granulated blast furnace slag high content cement. : D. M. Frangopol, R. Caspeele, & L. Taerwe (版), Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018 (pp. 597-603). (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018). CRC Press/Balkema.