Strength and deformation characteristics of EPS bead-mixed sand
บทความในวารสาร
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
ไม่พบข้อมูลที่เกี่ยวข้อง
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Thaothip A., Kongkitkul W.
ปีที่เผยแพร่ (ค.ศ.): 2017
วารสาร: International Journal of GEOMATE (2186-2982)
Volume number: 13
Issue number: 35
หน้าแรก: 8
หน้าสุดท้าย: 15
จำนวนหน้า: 8
นอก: 2186-2982
ภาษา: English-Great Britain (EN-GB)
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บทคัดย่อ
In this research, a study on strength and deformation characteristics of expanded polystyrene (EPS) bead-mixed sand was comprehensively conducted. A series of standard Proctor compaction tests were conducted to determine the proper amount water for use in the mixing between EPS bead and sand at the volumetric ratio of 1:1. A special series of drained triaxial compression tests were performed on the sand-EPS bead mixture (SEM) specimens. Various loading histories, consisting of: i) monotonic loading (ML) at different constant strain rates; ii) sustained (creep) loading (SL); iii) cyclic loading with small strain-amplitude (CL); and iv) stepwise changes in the strain rate during otherwise ML, were employed in this study. These loading histories were used to evaluate the elastic and viscous properties of the SEM. Then these properties were also compared with the ones obtained from the sand alone under similar loading conditions. It is found that the elastic and viscous properties of the SEM are qualitatively similar to those of sand alone. They are different in terms of quantity. A non-linear three-component (NTC) model was used to simulate the elasto-viscoplastic deformations of the SEM. The simulations are well successful by using the model parameters determined especially for the SEM sand under the conventional model framework. ฉ Int. J. of GEOMATE.
คำสำคัญ
Elastic, EPS bead, EPS bead-mixed sand, Non-linear three-component model, Triaxial compression test
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