The Variability and Evaluation Method of Recycled Concrete Aggregate Properties
Joint Authors
Zhang, Zhiqing
Shen, Bozhao
Ren, Hui
Wang, Jin
Li, Shiyun
Liu, Hao
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-23
Country of Publication
Egypt
No. of Pages
9
Abstract EN
With the same sources and regeneration techniques, given RA’s properties may display large variations.
The same single property index of different sets maybe has a large difference of the whole property.
How shall we accurately evaluate the whole property of RA? 8 groups of RAs from pavement and building were used to research the method of evaluating the holistic characteristics of RA.
After testing and investigating, the parameters of aggregates were analyzed.
The data of physical and mechanical properties show a distinct dispersion and instability; thus, it has been difficult to express the whole characteristics in any single property parameter.
The Euclidean distance can express the similarity of samples.
The closer the distance, the more similar the property.
The standard variance of the whole property Euclidean distances for two types of RA is Sk=7.341 and Sk=2.208, respectively, which shows that the property of building RA has great fluctuation, while pavement RA is more stable.
There are certain correlations among the apparent density, water absorption, and crushed value of RAs, and the Mahalanobis distance method can directly evaluate the whole property by using its parameters: mean, variance, and covariance, and it can provide a grade evaluation model for RAs.
American Psychological Association (APA)
Zhang, Zhiqing& Shen, Bozhao& Ren, Hui& Wang, Jin& Li, Shiyun& Liu, Hao. 2017. The Variability and Evaluation Method of Recycled Concrete Aggregate Properties. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1123503
Modern Language Association (MLA)
Zhang, Zhiqing…[et al.]. The Variability and Evaluation Method of Recycled Concrete Aggregate Properties. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1123503
American Medical Association (AMA)
Zhang, Zhiqing& Shen, Bozhao& Ren, Hui& Wang, Jin& Li, Shiyun& Liu, Hao. The Variability and Evaluation Method of Recycled Concrete Aggregate Properties. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1123503
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123503