Impact of air exposure post-steam curing on the internal curing efficiency of porous ceramic roof-tile waste fine aggregate in steam-cured fly ash concrete

Ogawa Yuko

Suzuki Shinya

Kawai Kenji

Materials Letters

This study aims to elucidate the impact of drying on the internal curing effect of fine aggregates derived from roof-tile waste in steam-cured fly ash concrete. The research examines the compressive strength, mass loss, surface moisture content, and surface air permeability of the concrete under two conditions: conventional steam curing (followed by exposure to air) and six-day sealed curing post-steam curing. Additionally, pore size distributions were exclusively evaluated for concrete exposed to air post-steam curing. Results indicate that drying after steam curing negatively affects the internal curing by porous ceramic roof-tile waste. Nonetheless, internal curing effectively mitigated the negative impact of drying on the surface layer of steam-cured concrete.

Drying after steam curing

Internal curing

Fly ash concrete

Compressive strength

Surface air permeability

英語

Elsevier

© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

This is not the published version. Please cite only the published version.

この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。

[DOI] https://doi.org/10.1016/j.matlet.2024.136576 ～の異版である

日本学術振興会

Japan Society for the Promotion of Science

[Crossref Funder] https://doi.org/10.13039/501100001691

蒸気養生したフライアッシュコンクリートの表層組織の分析と内部養生による高耐久化

Investigation on surface microstructure of steam-cured fly ash concrete and enhancement of the durability by internal curing

23K03986