Alteration of Sorption Properties of Hardened Cement Paste under Drying Process
-
- MARUYAMA Ippei
- Graduate School of Environmental Studies, Nagoya Univ.
-
- NISHIOKA Yukiko
- Graduate School of Environmental Studies, Nagoya Univ.
-
- SUGIE Ai
- Graduate School of Environmental Studies, Nagoya Univ.
-
- IGARASHI Go
- Graduate School of Environmental Studies, Nagoya Univ.
Bibliographic Information
- Other Title
-
- セメントペーストの乾燥条件下における水蒸気吸着性状の変化
- セメントペースト ノ カンソウ ジョウケン カ ニ オケル スイジョウキ キュウチャク セイジョウ ノ ヘンカ
Search this article
Abstract
Hydrated hardened cement paste samples using white cement were cured under different relative humidity conditions. After 180-day drying, Adsorption and desorption isotherms as well as chemically bound water of cured hardened cement paste were measured. Based on the adsorption data, it was concluded that drying process has two different effects on a sorption property. One effect was seen in drying process over 70%RH. Capillary pore with more than 2nm size was collapsed and amount of capillary condensation is decreased as it is dried in the lower relative humidity. The second effect was seen in drying process under below 60%RH. The vapor BET surface area was dramatically decreased as cement paste cured in lower relative humidity. From the change of chemically bound water and vapor BET surface area, it was deduced that a reaction of silanol to siloxane bond in C-S-H poses decrease in vapor adsorption sites.
Journal
-
- Journal of the Society of Materials Science, Japan
-
Journal of the Society of Materials Science, Japan 62 (3), 219-223, 2013
The Society of Materials Science, Japan
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680421845632
-
- NII Article ID
- 130003367154
-
- NII Book ID
- AN00096175
-
- COI
- 1:CAS:528:DC%2BC3sXptFyksb8%3D
-
- ISSN
- 18807488
- 05145163
-
- NDL BIB ID
- 024401388
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed