Performance comparison of PG 64-22 versus PG 64-28 asphalt in hot mix asphalt placed in Connecticut.

Adu-Gyamfi, Kwasi Owusu; Zofka, Adam; Mahoney, James

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Performance comparison of PG 64-22 versus PG 64-28 asphalt in hot mix asphalt placed in Connecticut.

2012-11-01
By Adu-Gyamfi, Kwasi Owusu ; Zofka, Adam ; Mahoney, James

File Language:

English

Details

Creators:

Adu-Gyamfi, Kwasi Owusu ; Zofka, Adam ; Mahoney, James
Corporate Creators:

Connecticut Transportation Institute ; University of Connecticut
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

CT-2264-F-12-7 ; SPR-2264
Resource Type:

Tech Report
Geographical Coverage:

Connecticut
Corporate Publisher:

Connecticut. Dept. of Transportation
Abstract:

This research was conducted to determine if switching from a low-temperature asphalt performance grade ; (PG) of -28°C to -22°C would be detrimental to the performance of Hot Mix Asphalt (HMA) pavements in ; Connecticut. Test sections were placed on two different resurfacing projects in CT in 2006, employing ; both PG 64-22 and PG 64-28 asphalt binders. Field tests and performance observations along with ; laboratory analysis and tests were used to determine the feasibility of increasing the cold temperature PG ; grade. The analysis was conducted utilizing several different methods, including field visits, photolog ; analysis, International Roughness Index (IRI) analysis, rutting analysis, cracking and distress analysis. ; Laboratory analyses included Asphalt Pavement Analyzer (APA) rut testing, tensile strength ratios, critical ; cracking temperature, PG grading and relaxation modulus. Results of all analysis and testing are not ; conclusive enough to make definitive statements regarding the use of PG 64-22 as compared with PG 64- ; 28.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/27220/dot_27220_DS1.pdf
File Type:

[PDF - 1.16 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:b070f61293ef9285796461dec897a4486a26ddc308954a5f5402910bb927422d

File Language:

English

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