Evaluation of new binders using newly developed fracture energy test.

Roque, Reynaldo; Yan, Yu; Cocconcelli, Cristian; Lopp, George; University of Florida. Dept. of Civil and Coastal Engineering

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Evaluation of new binders using newly developed fracture energy test.

2013-07-01
By Roque, Reynaldo ; Yan, Yu ; Cocconcelli, Cristian ; ...

[PDF-2.90 MB]

English

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Creators:

Roque, Reynaldo ; Yan, Yu ; Cocconcelli, Cristian ; Lopp, George

Roque, Reynaldo ; Yan, Yu ; Cocconcelli, Cristian ; Lopp, George Less -
Corporate Creators:

University of Florida. Dept. of Civil and Coastal Engineering
Subject/TRT Terms:

[+]

Additives Asphalt Pavements Bituminous Binders Deformation Curve Energy Fracture Tests
Publication/ Report Number:

BDK75 977-75
Resource Type:

Tech Report
Geographical Coverage:

Florida
Corporate Publisher:

Florida. Dept. of Transportation
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;
Abstract:

This study evaluated a total of seven asphalt binders with various additives

using the newly developed binder fracture energy test. The researchers prepared and

tested PAV-aged and RTFO-plus-PAV-aged specimens. This study confirmed previous

research findings that fracture energy is unaffected by loading rates. This research

outlines the characteristics of true stress-true strain curves for asphalt binders with

various additives. The results indicate that SBS polymer-modified asphalt binder

exhibits a true stress-true strain curve with a distinct second stress peak at all loading

rates, and has high fracture energy. Four binders exhibited comparable fracture energy

with and without RTFO testing, while the fracture energy of other three increased

significantly after RTFO testing. Limited information is available regarding the

additives in the tested binders and their relative contents; however, the BFE test appears

to clearly identify the presence of SBS polymer modifier and rank the cracking

resistance of tested binders in terms of fracture energy. The BFE test successfully

identified three binders which failed to meet the Superpave PG 76-22 grading

requirements and clearly distinguished between the remaining four qualified binders.
Format:

PDF
Funding:

UF Project No.: 00106022
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:d0150d6d6fc16bdf8366115e0125977d70f03ce00b7a065d103de66cf08d1d04
Download URL:

https://rosap.ntl.bts.gov/view/dot/26267/dot_26267_DS1.pdf
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Evaluation of new binders using newly developed fracture energy test.

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