Evaluation of modified single seal surface treatments.

Maupin, G. W; Payne, Charles W; Virginia. Dept. of Transportation; University of Virginia; Virginia Transportation Research Council (VTRC)

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Evaluation of modified single seal surface treatments.

1995-01-01
By Maupin, G. W ; Payne, Charles W

[PDF-2.98 MB]

English

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Details:

Alternative Title:

Final report, evaluation of modified single seal surface treatments.
Creators:

Maupin, G. W ; Payne, Charles W

Maupin, G. W ; Payne, Charles W Less -
Corporate Creators:

Virginia. Dept. of Transportation ; University of Virginia ; Virginia Transportation Research Council (VTRC)

Virginia. Dept. of Transportation ; University of Virginia ; Virginia Transportation Research Council (VTRC) Less -
Subject/TRT Terms:

[+]

Asphalt Emulsion Mixtures Pavements--Maintenance And Repair Sealing Compounds
Publication/ Report Number:

VTRC 95-R23
Resource Type:

Tech Report
Geographical Coverage:

Virginia
Edition:

Final report.
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

This report describes a field study of a multicourse asphalt emulsion chip seal, designated as a modified single seal. The treatment, already used in North Carolina, consists of an application of emulsion and coarse aggregate followed by another application of emulsion and a final layer of fine aggregate. Sixty sections were placed in three districts in 1986-88, totaling approximately 400 lane-km of surfacing. These sections were evaluated periodically by a team of local operations personnel and research staff. The operations personnel also provided estimates of service life. for conventional single chip seals, used for a cost-benefit analysis. The modified seals performed better and were more cost-effective than conventional surface treatments. Also, the hazard of broken windshields caused by loose aggregate was virtually eliminated on the modified seal treatments. The report includes recommendations for ensuring that the final product is of high quality. The recommendations include using a pilot vehicle, limiting the speed of construction traffic, using clean dry blot aggregate, applying the coarse aggregate not more than one stone thick, and using the proper nozzles on the asphalt distributor.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:f1f59dbe5a2c812c7c99e90698909e7f0081b233c3914252d1c5dd5aae6067ea
Download URL:

https://rosap.ntl.bts.gov/view/dot/19386/dot_19386_DS1.pdf
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Evaluation of modified single seal surface treatments.

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