Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)

Viscoelastic Analysis of Flexible Pavements Embedded with Controlled Low-Strength Material Bases Using Finite Element Method

Authors
Wen-Ling Huang, Her-Yung Wang, Li-Jeng Huang
Corresponding Author
Wen-Ling Huang
Available Online April 2017.
DOI
10.2991/icmmse-17.2017.33How to use a DOI?
Keywords
CLSM, FEM, Viscoelatic Analysis, Flexible Pavements
Abstract

This paper presents finite element analysis of 4-layered flexible pavements embedded viscoelastic asphalt concrete (AC) top layer and controlled low-strength materials (CLSM) sublayers as well as graded crushed stone subgrades layers. Two-dimensional deformation assumption is employed. Time-dependent stress-strain relations are treated using Laplace transform based on correspondence principle. Collocation method is employed for inversion of Laplace transformed results into time-domain results. A typical layered pavement is analyzed in which relaxation modulus of top viscoelastic asphalt layer is expressed in Prony series. Two kinds of CLSMs, i.e., CLSM-B80/30% and CLSM-B130/30% are compared with graded crushed stones and AC used for base materials. Time-domain responses of vertical displacement, vertical stress and horizontal stress at the bottom of AC layer are compared. The steady state vertical settlements using CLSM bases (B80/30% and B130/30%) are smaller than that using graded crushed stones even considering viscoelastic behavior of asphalt layer and show to be good materials employed as base substitutes for graded crushed stone in flexible pavement design.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)
Series
Advances in Engineering Research
Publication Date
April 2017
ISBN
10.2991/icmmse-17.2017.33
ISSN
2352-5401
DOI
10.2991/icmmse-17.2017.33How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Wen-Ling Huang
AU  - Her-Yung Wang
AU  - Li-Jeng Huang
PY  - 2017/04
DA  - 2017/04
TI  - Viscoelastic Analysis of Flexible Pavements Embedded with Controlled Low-Strength Material Bases Using Finite Element Method
BT  - Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)
PB  - Atlantis Press
SP  - 214
EP  - 219
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmse-17.2017.33
DO  - 10.2991/icmmse-17.2017.33
ID  - Huang2017/04
ER  -