Validation of the mix design process for cold in-place rehabilitation using foamed asphalt.

Lee; Hosin “David”; Kim, Yongjoo; University of Iowa. Public Policy Center

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Validation of the mix design process for cold in-place rehabilitation using foamed asphalt.

2007-06-01
By Lee ; Hosin “David” ; Kim, Yongjoo

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English

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Details:

Creators:

Lee ; Hosin “David” ; Kim, Yongjoo

Lee ; Hosin “David” ; Kim, Yongjoo Less -
Corporate Creators:

University of Iowa. Public Policy Center
Corporate Contributors:

Iowa. Highway Research Board ; Iowa. Dept. of Transportation

Iowa. Highway Research Board ; Iowa. Dept. of Transportation Less -
Subject/TRT Terms:

[+]

Asphalt Pavements Cold In-place Recycling Creep Tests Dynamic Modulus Of Elasticity Foamed Asphalt Foamed Materials In-place Recycling Pavements, Asphalt--Recycling Recycling Stripping (Pavements)
Publication/ Report Number:

IHRB Report TR-474
Resource Type:

Tech Report
Geographical Coverage:

Iowa
Corporate Publisher:

University of Iowa. Public Policy Center
Abstract:

Asphalt pavement recycling has grown dramatically over the last few years as a viable

technology to rehabilitate existing asphalt pavements. Iowa's current Cold In-place

Recycling (CIR) practice utilizes a generic recipe specification to define the

characteristics of the CIR mixture. As CIR continues to evolve, the desire to place

CIR mixture with specific engineering properties requires the use of a mix design

process. A new mix design procedure was developed for Cold In-place Recycling

using foamed asphalt (CIR-foam) in consideration of its predicted field performance.

The new laboratory mix design process was validated against various Reclaimed

Asphalt Pavement (RAP) materials to determine its consistency over a wide range of

RAP materials available throughout Iowa. The performance tests, which include

dynamic modulus test, dynamic creep test and raveling test, were conducted to

evaluate the consistency of a new CIR-foam mix design process to ensure reliable

mixture performance over a wide range of traffic and climatic conditions. The “lab

designed” CIR will allow the pavement designer to take the properties of the CIR into

account when determining the overlay thickness.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:4c3be3e5b6b6a80118827d7e8cb2be3042153b1e18abf50159a3b8a845a4cbe2
Download URL:

https://rosap.ntl.bts.gov/view/dot/24349/dot_24349_DS1.pdf
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Validation of the mix design process for cold in-place rehabilitation using foamed asphalt.

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