Use of Secant Shear Modulus for Rutting Potential Assessment of Indonesian Wearing Course Mixtures
Since shear modulus (G) indicates a resistance to shear deformation, the property should be essentially considered to evaluate the rutting potential. This study discusses a criterion of G for Indonesian wearing course mixture (IWCM) design. Simple unconfined compression test was conducted to calcula...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Riga Technical University Press
2007-09-01
|
| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/3866 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Since shear modulus (G) indicates a resistance to shear deformation, the property should be essentially considered to evaluate the rutting potential. This study discusses a criterion of G for Indonesian wearing course mixture (IWCM) design. Simple unconfined compression test was conducted to calculate secant shear modulus (Gs) of IWCM. Gs is a ratio of shear strength (ts) to shear strain (g).ts and g were obtained from unconfined compressive strength and the strain transformation law, respectively. Wheel tracking test was conducted to verify validity of Gs as a rutting potential index of IWCM. Gs could rank the laboratory rutting performance of the designed mixtures as well as dynamic stability (DS). A relationship between Gs and DS suggests that over 28 MPa in Gs is equivalent to more than 800 cycles/mm in DS, within the scope of materials sources used in the present study. Gs can be one of rutting potential indicators of IWCM. |
|---|---|
| ISSN: | 1822-427X 1822-4288 |