Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base
Joint Authors
Yao, Yongsheng
Li, Jue
Qian, Junfeng
Liang, Chenghao
Yi, Jin
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Using recycled aggregate from construction and demolition (C&D) wastes as a construction material is a potential method for solving the disposal of C&D wastes, which can reduce the exploitation of natural aggregate.
In this study, extensive laboratory tests were carried out to investigate the reliability of the C&D wastes used as road base material.
Meanwhile, the gradation design and the dominant aggregate size range were considered, and a physical disposal method was proposed to enhance the structural performance of the recycled material by replacing the skeleton of the recycled aggregate (RA) with high-quality limestone.
The test results showed that (1) given the high absorbency and fragility of C&D wastes, its RA was not enough to provide the strength and stability required by the base; (2) the compaction characteristics of the RA are quite different from that of the limestone aggregate, but the final compaction effect is basically the same; (3) the replacement treatment proposed in this study is an effective approach to improve the performance of the recycled granular base because the breakage rate decreased by at least 28.2% and the mechanical properties increased by approximately 50% compared with that of the untreated specimen; and (4) when the limestone content reached 75%, the California bearing ratio and the resilient modulus of the graded B specimen exceeded 120% and 200 MPa, respectively, satisfying the pavement requirement in medium traffic.
American Psychological Association (APA)
Yi, Jin& Liang, Chenghao& Qian, Junfeng& Li, Jue& Yao, Yongsheng. 2020. Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1123428
Modern Language Association (MLA)
Yi, Jin…[et al.]. Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1123428
American Medical Association (AMA)
Yi, Jin& Liang, Chenghao& Qian, Junfeng& Li, Jue& Yao, Yongsheng. Laboratory Evaluation and Design of Construction and Demolition Wastes for Granular Base. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1123428
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123428