| Autor: |
Imaninasab, Reza, Loria-Salazar, Luis, Carter, Alan |
| Předmět: |
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| Zdroj: |
Road Materials & Pavement Design; 2024 Suppl 1, Vol. 25, p28-44, 17p |
| Abstrakt: |
Bailey method is a well-proved method to build strong aggregate structure, but it is originally devised to do so by proportioning the fractionated virgin aggregate stockpiles. Yet, the concepts of strong aggregate structure in the Bailey method stand true in any type of aggregate. This study develops a method for correcting the bad gradation of RAP by utilising Bailey's concepts. The virgin aggregate stockpiles are added minimally into RAP to establish a firm aggregate skeleton. This changes the philosophy of aggregate blend design from the RAP following an existing good gradation to the RAP gradation correction. The effectiveness of the method was evaluated by the indirect tensile (IDT) strength and laboratoire des ponts et chaussées (LPC) wheel tracking tests. The mixtures whose gradations were rectified by this method, whether coarse dense-graded (CDG) or fine dense-graded (FDG), have significantly higher rutting resistance than 100% RAP mixture. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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