Details:

Creators:
Sprinkel, Michael M. ; Apeagyei, Alex K
Sprinkel, Michael M. ; Apeagyei, Alex K Less -
Corporate Creators:
Virginia Center for Transportation Innovation and Research
Corporate Contributors:
Virginia. Dept. of Transportation ; United States. Federal Highway Administration
Virginia. Dept. of Transportation ; United States. Federal Highway Administration Less -
Subject/TRT Terms:
[+]
Bituminous Overlays Bridge Deck Overlay, Rosphalt Bridge Decks
Publication/ Report Number:
FHWA/VCTIR 13-R5
Resource Type:
Tech Report
Geographical Coverage:
Virginia
Corporate Publisher:
Virginia. Dept. of Transportation
Abstract:
"Protection systems are placed on bridge decks to retard the intrusion of chlorides and moisture that can eventually cause

corrosion deterioration. The Virginia Department of Transportation typically uses hydraulic cement concrete (HCC) overlays of

latex-modified concrete (LMC); LMC with very early hardening cement (LMC-VE); and silica fume concrete (SFC) and epoxy

overlays for deck protection. Occasionally, a conventional asphalt overlay and waterproof membrane system is used.

Rosphalt is an asphalt that is considered to be impermeable and has been used on decks without placement of a membrane.

The purpose of this research was to evaluate the construction, initial condition, and cost of the Rosphalt overlays placed on two

bridges in Virginia: (1) the northbound lanes of I-85 over Route 629 and the eastbound and westbound lanes of Span 22 of the

Norris Bridge on State Route 3 over the Rappahannock River. As a comparison to Rosphalt, a conventional asphalt overlay and

waterproof membrane system was placed on the adjacent bridge on the southbound lanes of I-85 over Route 629. Emphasis was

placed on comparing the wearing and protection systems with respect to speed and ease of construction (including lane closure

time), initial condition as indicated by physical properties, protection and skid resistance, and cost. An objective was also to

compare these asphalt protection systems to HCC overlays of LMC-VE, LMC, and SFC and epoxy overlays.

Costs varied greatly depending on the estimates used and the bid prices. Although estimates for the Norris Bridge indicated

Rosphalt as the lowest cost option, bid prices showed it was likely the most expensive option. Three overlay options, Rosphalt,

SM-9.5 mixture and membrane, and LMC-VE, are rapid and can provide major reductions in traffic control and user costs. Based

on laboratory tests, Rosphalt is more fatigue and rut resistant than the SM-9.5 mixture and should last longer, but based on the

cost of the first two installations in Virginia, Rosphalt is too expensive to be considered as a competitive overlay system."


Format:
PDF
Funding:
93240
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:29491828c0990d76ae8bce866deead13f0a1f3366bbe3a6e337f5d6bec4b8496
Download URL:
https://rosap.ntl.bts.gov/view/dot/27445/dot_27445_DS1.pdf
File Type:

Supporting Files

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