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Generalized Interface Shear Strength Equation for Recycled Materials Reinforced with Geogrids
| Content Provider | MDPI |
|---|---|
| Author | Udomchai, Artit Hoy, Menglim Suddeepong, Apichat Phuangsombat, Amornrit Horpibulsuk, Suksun Arulrajah, Arul Thanh, Nguyen Chi |
| Copyright Year | 2021 |
| Description | In this research, large direct shear tests were conducted to evaluate the interface shear strength between reclaimed asphalt pavement (RAP) and kenaf geogrid (RAP–geogrid) and to also assess their viability as an environmentally friendly base course material. The influence of factors such as the gradation of RAP particles and aperture sizes of geogrid (D) on interface shear strength of the RAP–geogrid interface was evaluated under different normal stresses. A critical analysis was conducted on the present and previous test data on geogrids reinforced recycled materials. The $D/F_{D}$, in which $F_{D}$ is the recycled materials’ particle content finer than the aperture of geogrid, was proposed as a prime parameter governing the interface shear strength. A generalized equation was proposed for predicting the interface shear strength of the form: α = $a(D/F_{D}$) + b, where α is the interface shear strength coefficient, which is the ratio of the interface shear strength to the shear strength of recycled material, and a and b are constants. The constant values of a and b were found to be dependent upon types of recycled material, irrespective of types of geogrids. A stepwise procedure to determine variable a, which is required for analysis and design of geogrids reinforced recycled materials in roads with various gradations was also suggested. |
| Starting Page | 9446 |
| e-ISSN | 20711050 |
| DOI | 10.3390/su13169446 |
| Journal | Sustainability |
| Issue Number | 16 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-08-23 |
| Access Restriction | Open |
| Subject Keyword | Sustainability Transportation Science and Technology Ground Improvement Geogrid Recycled Materials Interface Shear Strength Large-direct Shear Test Base Course Reinforcement Pavement Geotechnics |
| Content Type | Text |
| Resource Type | Article |
