Details:

Creators:
Kandhal, Prithvi S. ; Foo, Kee Y.
Kandhal, Prithvi S. ; Foo, Kee Y. Less -
Subject/TRT Terms:
[+]
Binders Coarse Aggregates Large Stone Aggregates Marshall Test
DOI:
https://doi.org/10.21949/1404496
Resource Type:
Tech Report
TRIS Online Accession Number:
00737828
Corporate Publisher:
National Center for Asphalt Technology (U.S.)
NTL Classification:
NTL-HIGHWAY/ROAD TRANSPORTATION-Design;NTL-HIGHWAY/ROAD TRANSPORTATION-Materials;NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;
Abstract:
Mix design procedures for recycled asphalt pavements require the selection of

virgin asphalt binder or recycling agent. This research project was undertaken

to develop a procedure for selecting the performance grade (PG) of virgin

asphalt binder based on the Superpave PG grading system. Blending charts,

similar to the viscosity blending charts, were constructed and evaluated based

on test parameters obtained from the dynamic shear rheometer (DSR). The

criteria for selection was based on Superpave peformance grading (PG)

specification, for example, G*/sin(delta)=1kPa minimum for unconditioned asphalt

binder, G*/sin(delta)6=2.2kPa minimum for rolling thin film oven (RTFO) residue,

G*sin(delta)=5MPa maximum for RTFO and pressure aging vessel (PAV) residue. The

criteria based on the fatigue parameter (G*sin(delta)=5MPa maximum for RTFO+PAV

residue) was determined to be too liberal and, therefore, was not recommended.

An alternative criteria based on the high temperature stiffness[G*/sin(delta)]

was recommended.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:c88fa41c5e99a23d55147fecbf0fc42b73df482fa5917ef8fe0da9a755486418
Download URL:
https://rosap.ntl.bts.gov/view/dot/13191/dot_13191_DS1.pdf
File Type:

Supporting Files

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