Development of a new calcium sulfoaluminate (synthetic ye'elimite) blended PII 52.5 cement
Article
Article Title | Development of a new calcium sulfoaluminate (synthetic ye'elimite) blended PII 52.5 cement |
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ERA Journal ID | 4146 |
Article Category | Article |
Authors | Zhang, Yu (Author), Zhang, Zuhua (Author), Shi, Chaoqi (Author), Wang, Hao (Author) and Shen, Xiaodong (Author) |
Journal Title | Advances in Cement Research |
Journal Citation | 29 (9), pp. 373-386 |
Number of Pages | 14 |
Year | 2017 |
Place of Publication | Westminster, United Kingdom |
ISSN | 0951-7197 |
1751-7605 | |
Digital Object Identifier (DOI) | https://doi.org/10.1680/jadcr.17.00027 |
Abstract | The aim of this paper is to examine the effect of a blending dose of calcium sulfoaluminate (synthetic ye'elimite, C4A3$) and gypsum on the hydration and hardening properties of a new ye'elimite (C4A3$) blended PII 52.5 cement. By using X-ray diffractometry, mercury intrusion porosimetry, thermogravimetry and scanning electron microscopy, it was revealed that the hydration of tricalcium silicate (C3S) is significantly retarded by the lack of gypsum; the renewed hydration of tricalcium aluminate (C3A) was retarded in cement pastes containing a high amount of C4A3$. The dosage of C4A3$ and the ratio of gypsum/C4A3$ both have a notable influence on the hydration heat, hydration products and the compressive strength and linear expansion. The cement paste containing 3% C4A3$ at gypsum/C4A3$ ratio of 2 exhibited the best performance, in terms of both high early and long-term compressive strength and acceptable linear expansion (0·04% on 300 d); the cement can therefore be adopted in industrial structures. |
Keywords | calcium sulfate, cracks, cracking, hydrated cement |
ANZSRC Field of Research 2020 | 400505. Construction materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Nanjing Tech University, China |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q587x/development-of-a-new-calcium-sulfoaluminate-synthetic-ye-elimite-blended-pii-52-5-cement
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