Contribution of fly ash to mortar strength development under steam and internal curing
The purpose of this study is to quantitatively evaluate the effects of steam curing and internal curing on contribution of fly ash to strength development of mortar by using cementing efficiency factor (k-value) that represents strength development performance as a binder of fly ash. In addition, th...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University in Prague
2022-03-01
|
| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8008 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849409770969104384 |
|---|---|
| author | Ryo Insako Yuki Miyoshi Phat Tan Huynh Yuko Ogawa Kenji Kawai |
| author_facet | Ryo Insako Yuki Miyoshi Phat Tan Huynh Yuko Ogawa Kenji Kawai |
| author_sort | Ryo Insako |
| collection | DOAJ |
| description | The purpose of this study is to quantitatively evaluate the effects of steam curing and internal curing on contribution of fly ash to strength development of mortar by using cementing efficiency factor (k-value) that represents strength development performance as a binder of fly ash. In addition, the pozzolanic reaction of fly ash was evaluated from the viewpoint of calcium hydroxide consumption by using thermogravimetry and differential thermal analysis as well as the degree of fly ash reaction by using selective dissolution method. The result indicated that steam curing improved early compressive strength and internal curing improved compressive strength and k-value at all ages. Also, a linearrelationship between the degree of fly ash reaction and the k-value was shown regardless of the age and the replacement ratio of fly ash. |
| format | Article |
| id | doaj-art-8ab0d36c6f614ffda78be7bbb302ca6f |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-8ab0d36c6f614ffda78be7bbb302ca6f2025-08-20T03:35:23ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822022-03-013323223710.14311/APP.2022.33.02325248Contribution of fly ash to mortar strength development under steam and internal curingRyo Insako0Yuki Miyoshi1Phat Tan Huynh2Yuko Ogawa3Kenji Kawai4Hiroshima University, Graduate School of Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, JapanHiroshima University, Graduate School of Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japana Hiroshima University, Graduate School of Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan; Ho Chi Minh City University of Technology, Faculty of Civil Engineering, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam; Vietnam National University Ho Chi Minh City, 2 Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam Hiroshima University, Graduate School of Advanced Science and Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, JapanHiroshima University, Graduate School of Advanced Science and Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, JapanThe purpose of this study is to quantitatively evaluate the effects of steam curing and internal curing on contribution of fly ash to strength development of mortar by using cementing efficiency factor (k-value) that represents strength development performance as a binder of fly ash. In addition, the pozzolanic reaction of fly ash was evaluated from the viewpoint of calcium hydroxide consumption by using thermogravimetry and differential thermal analysis as well as the degree of fly ash reaction by using selective dissolution method. The result indicated that steam curing improved early compressive strength and internal curing improved compressive strength and k-value at all ages. Also, a linearrelationship between the degree of fly ash reaction and the k-value was shown regardless of the age and the replacement ratio of fly ash.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8008cementing efficiency factor (k-value)fly ashinternal curingsteam curlingstrength development of mortar |
| spellingShingle | Ryo Insako Yuki Miyoshi Phat Tan Huynh Yuko Ogawa Kenji Kawai Contribution of fly ash to mortar strength development under steam and internal curing Acta Polytechnica CTU Proceedings cementing efficiency factor (k-value) fly ash internal curing steam curling strength development of mortar |
| title | Contribution of fly ash to mortar strength development under steam and internal curing |
| title_full | Contribution of fly ash to mortar strength development under steam and internal curing |
| title_fullStr | Contribution of fly ash to mortar strength development under steam and internal curing |
| title_full_unstemmed | Contribution of fly ash to mortar strength development under steam and internal curing |
| title_short | Contribution of fly ash to mortar strength development under steam and internal curing |
| title_sort | contribution of fly ash to mortar strength development under steam and internal curing |
| topic | cementing efficiency factor (k-value) fly ash internal curing steam curling strength development of mortar |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8008 |
| work_keys_str_mv | AT ryoinsako contributionofflyashtomortarstrengthdevelopmentundersteamandinternalcuring AT yukimiyoshi contributionofflyashtomortarstrengthdevelopmentundersteamandinternalcuring AT phattanhuynh contributionofflyashtomortarstrengthdevelopmentundersteamandinternalcuring AT yukoogawa contributionofflyashtomortarstrengthdevelopmentundersteamandinternalcuring AT kenjikawai contributionofflyashtomortarstrengthdevelopmentundersteamandinternalcuring |