Characterization of a sodium aluminate(NaAlO2)-based accelerator made via a tablet processing method
- Authors
- Lee, Yong-Soo; Lim, Dae-Sung; Chun, Byung-Sik; Ryou, Jae-Suk
- Issue Date
- Feb-2013
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- Tablet; Aluminate-based accelerator; C-A-H; Early strength; Workability
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.14, no.1, pp.87 - 91
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 14
- Number
- 1
- Start Page
- 87
- End Page
- 91
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163471
- DOI
- 10.36410/jcpr.2013.14.1.87
- ISSN
- 1229-9162
- Abstract
- When an accelerator that is used in shotcrete reacts on cement, it quickly sets upon early hydration. Use of cold-weather concrete prevents concrete damage from freezing. There is difficulty securing workability, however, since early hydration makes it react rapidly. In this study, a tablet that is used in pharmaceuticals was made of an aluminate-based accelerator and is discussed in terms of its mortar setting time and flow test result. Also, the rate and progress of its hydration were evaluated by analyzing the X-ray diffraction (XRD) and scanning electron microscopy (SEM) results. As a result, in the sample that included both the tablet and the aluminate-based accelerator, hydrates such as calcium aluminate hydrate (C-A-H) and calcium hydroxide [Ca(OH)(2)] were formed within similar times.
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