![](/images/graphics-bg.png)
Modification of Lime-Fly Ash-Crushed Stone with Phosphogypsum for Road Base
Joint Authors
Yang, Lei
Zhang, Hao
Cheng, Yuan
Song, Weikang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In order to increase the recycling of phosphogypsum waste, this study explored the feasibility of using phosphogypsum to replace some of the lime and aggregate in the lime-fly ash-crushed stone mixture which is a widely used road base material in China.
For this purpose, compaction, compressive strength, composition structures, wetting-drying cycle tests, and shrinkage tests were carried out on the lime-fly ash-phosphogypsum-crushed stone composite to investigate its performance.
The results indicate that lime-fly ash-crushed stone modified with phosphogypsum has the required strength of the road base material and favourable performances in environment (wetting-drying cycle) stability.
The image processing analysis and shrinkage tests demonstrated that phosphogypsum can significantly improve the compactness and shrinkage performance of lime-fly ash-crushed stone mixture.
A suitable content of phosphogypsum and a reasonable content of fine aggregate are conducive to improving the roadway engineering properties (i.e., decreasing shrinkage cracks and increasing compressive strength) of lime-fly ash-phosphogypsum-crushed stone composites.
American Psychological Association (APA)
Zhang, Hao& Cheng, Yuan& Yang, Lei& Song, Weikang. 2020. Modification of Lime-Fly Ash-Crushed Stone with Phosphogypsum for Road Base. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1123263
Modern Language Association (MLA)
Zhang, Hao…[et al.]. Modification of Lime-Fly Ash-Crushed Stone with Phosphogypsum for Road Base. Advances in Civil Engineering No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1123263
American Medical Association (AMA)
Zhang, Hao& Cheng, Yuan& Yang, Lei& Song, Weikang. Modification of Lime-Fly Ash-Crushed Stone with Phosphogypsum for Road Base. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1123263
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123263