Mechanical strength and hydration characteristics of cement mixture with highly concentrated hydrogen nanobubble water
- Authors
- Kim, W.-K.; Hong, G.; Kim, Y.-H.; Kim, J.-M.; Kim, J.; Han, J.-G.; Lee, J.-Y.
- Issue Date
- Jun-2021
- Publisher
- MDPI AG
- Keywords
- Hydration; Hydrogen nanobubble water; Mechanical strength; Mortar
- Citation
- Materials, v.14, no.11
- Journal Title
- Materials
- Volume
- 14
- Number
- 11
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/50910
- DOI
- 10.3390/ma14112735
- ISSN
- 1996-1944
1996-1944
- Abstract
- In this study, highly concentrated hydrogen nanobubble water was utilized as the blending water for cement mortar to improve its compressive and flexural strengths. Highly concentrated nanobubbles can be obtained through osmosis. This concentration was maintained by sustaining the osmotic time. The mortar specimens were cured for 28 days, in which the nanobubble concentration was increased. This improved their flexural strength by 2.25–13.48% and compressive strength by 6.41–11.22%, as compared to those afforded by plain water. The nanobubbles were densified at high concentrations, which caused a decrease in their diameter. This increased the probability of collisions with the cement particles and accelerated the hydration and pozzolanic reactions, which facilitated an increase in the strength of cement. Thermogravimetric analysis and scanning electron microscopy were used to confirm the development of calcium silicate hydrate (C-S-H) and hydration products with an increase in the nanobubble concentration. Quantitative analysis of the hydration products and the degree of hydration were calculated by mineralogical analysis. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > ETC > 1. Journal Articles
- College of Engineering > School of Mechanical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/50910)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.