A mixture proportioning method for the development of performance-based alkali-activated slag-based concrete
Article
Article Title | A mixture proportioning method for the development of performance-based alkali-activated slag-based concrete |
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ERA Journal ID | 21082 |
Article Category | Article |
Authors | Li, Ning (Author), Shi, Caijun (Author), Zhang, Zuhua (Author), Zhu, Deju (Author), Hwang, Hyeon-Jong (Author), Zhu, Yuhan (Author) and Sun, Tengjiao (Author) |
Journal Title | Cement and Concrete Composites |
Journal Citation | 93, pp. 163-174 |
Number of Pages | 12 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0958-9465 |
1873-393X | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cemconcomp.2018.07.009 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0958946518305067#ack0010 |
Abstract | This paper reports a general mixture design procedure for alkali-activated slag concrete, which is an essential step towards industrial application. The procedure involves three steps: 1) the determination of coarse and fine aggregate ratio according to close packing model; 2) the determination of liquid phase (water content and activator) based on compressive strength; and 3) the determination of excess paste content by workability requirement and measurement. Effects of mixture proportional factors, including activator composition, water content, fly ash content, and binder/aggregate ratio are examined on consistency, setting time and compressive strength. The relationship between performance and precursor composition is established using simplex centroid design method. Using the mixture proportioning method, alkali-activated concretes with compressive strength grades of C40, C60, and C80 are successfully prepared with initial setting time of 1–3 h and slump of more than 200 mm. |
Keywords | alkali-activated concrete; proportional design; simplex centroid design method; slump; setting time; compressive strength |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hunan University, China |
Nanjing University of Technology, China | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) Grant ID DP160104149; DE170101070). |
https://research.usq.edu.au/item/q4zq1/a-mixture-proportioning-method-for-the-development-of-performance-based-alkali-activated-slag-based-concrete
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