Applicability of Modified University of Illinois at Urbana-Champaign Model for Unbound Aggregate Material with Different Water Content

Lin, Tianshu; Ishikawa, Tatsuya; Luo, Bin

Applicability of Modified University of Illinois at Urbana-Champaign Model for Unbound Aggregate Material with Different Water Content

Lin, Tianshu; Ishikawa, Tatsuya; Luo, Bin

Transportation research record, 2019, 2673(3), 439-449

Permalink : https://hdl.handle.net/2115/74912

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/74912
タイトル	Applicability of Modified University of Illinois at Urbana-Champaign Model for Unbound Aggregate Material with Different Water Content
著者	Lin, Tianshu ; Ishikawa, Tatsuya ; Luo, Bin
著者名 Lin, Tianshu
e-Rad_Researcher 60359479 著者名 Ishikawa, Tatsuya
著者名 Luo, Bin
言語	英語
発行日	2019-03
出版者	SAGE Publications
収録物名	Transportation research record
巻(号)	2673(3)
ページ	439-449
抄録	This paper proposes a modified University of Illinois at Urbana-Champaign (UIUC) model to predict permanent deformation behavior of unbound aggregate materials. Most existing models relate permanent deformation to resilient properties, whereas the UIUC model treats shear strength as a critical factor in permanent deformation behavior. Three types of test, monotonic shearing test, cyclic axial loading test, and cyclic axial and shear loading test, were conducted by multi-ring shear apparatus on two kinds of parallel grading aggregate materials, natural crusher-run and recycled crusher-run obtained from demolished concrete structure. Test results demonstrate that shear strength is the core factor in permanent deformation behavior, compared with resilient properties, and principal stress axis rotation (PSAR) greatly increases the permanent deformation. By considering the effect of PSAR on permanent deformation, a new parameter, (R-s)(ave), is added to the conventional UIUC model to modify it. Regression analysis results verify that the modified UIUC model has good applicability for predicting permanent deformation of aggregates with different water contents and stress states, and with and without PSAR. The modified UIUC model builds a relation between test results with and without PSAR. A simple framework is also proposed for predicting permanent deformation in flexible pavement structures based on the modified UIUC model.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Lin, Tianshu; Ishikawa, Tatsuya; Luo, Bin , Applicability of Modified University of Illinois at Urbana-Champaign Model for Unbound Aggregate Material with Different Water Content, Transportation research record, 2673(3) pp. 439-449. Copyright © 2019 National Academy of Sciences. DOI: 10.1177/0361198119827530.
PISSN	0361-1981
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1177/0361198119827530