Utilization of Electroplating Sludge as Subgrade Backfill Materials: Mechanical and Environmental Risk Evaluation
Joint Authors
Tang, Qiang
Zhang, Yu
Shi, Peixin
Chen, Lijuan
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The electroplating sludge may pose serious threat to human health and surrounding environment without safe treatment.
This paper investigated the feasibility of using electroplating sludge as subgrade backfill materials, by evaluating the mechanical properties and environmental risk of the cement-coal fly ash solidified sludge.
In this study, Portland cement and coal fly ash are used to solidify/stabilize the sludge.
After curing for 7, 14, and 28 days, the stabilization/solidification sludge specimens were subject to a series of mechanical, leaching, and microcosmic tests.
It was found that the compressive strength increased with the increase of cement content, curing time, and the cement replacement by coal fly ash besides water content.
Among these factors, the impact of water content on the compressive strength is most noticeable.
It was observed that the compressive strength declined by 87.1% when the water content increased from 0% to 10%.
Besides, leaching tests showed that the amount of leaching heavy metals were under the standard limit.
These results demonstrated utilization of electroplating sludge in subgrade backfill material may provide an alternative for the treatment of electroplating sludge.
American Psychological Association (APA)
Zhang, Yu& Shi, Peixin& Chen, Lijuan& Tang, Qiang. 2018. Utilization of Electroplating Sludge as Subgrade Backfill Materials: Mechanical and Environmental Risk Evaluation. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1116086
Modern Language Association (MLA)
Zhang, Yu…[et al.]. Utilization of Electroplating Sludge as Subgrade Backfill Materials: Mechanical and Environmental Risk Evaluation. Advances in Civil Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1116086
American Medical Association (AMA)
Zhang, Yu& Shi, Peixin& Chen, Lijuan& Tang, Qiang. Utilization of Electroplating Sludge as Subgrade Backfill Materials: Mechanical and Environmental Risk Evaluation. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1116086
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116086