Characterization of HMA mixtures containing high reclaimed asphalt pavement content with crumb rubber additives : [technical summary].

King, Bill; Louisiana Transportation Research Center

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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

Characterization of HMA mixtures containing high reclaimed asphalt pavement content with crumb rubber additives : [technical summary].

2013-03-01
By King, Bill

English

Details You May Also Like

Details:

Creators:

King, Bill
Corporate Creators:

Louisiana Transportation Research Center
Subject/TRT Terms:

[+]

Asphalt Additives Asphalt Pavements Bend Tests Crumb Rubber Hot Mix Paving Mixtures Mix Design Performance Tests Recycled Materials
Publication/ Report Number:

State Project No. 736-99-1574 ; LTRC Project No. 09-1B

State Project No. 736-99-1574 ; LTRC Project No. 09-1B Less -
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Corporate Publisher:

Louisiana Transportation Research Center
NTL Classification:

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

With the increase in hot mix asphalt (HMA) mixtures’ prices continuously climbing, highway agencies and owners are continually

searching for methods to decrease material costs and maximize their benefi ts with no compromise in performance. One such method

is to develop innovative technology to incorporate waste and recycled materials, such as crumb rubber from waste tires and reclaimed

asphalt pavement (RAP), in HMA mixtures. As HMA pavements age over time, the asphalt binders become hardened and oxidized

causing premature cracking in pavements. Thus, the current limiting factor in increasing the percentages of RAP is the excessive

stiff ness of the resulting HMA mixture. Rejuvenating additives are often used to soften the asphalt cement binder of RAP materials

and may enable the use of higher percentages of RAP in the fi nished product. Furthermore, absorption properties of crumb rubber

may be used to carry those additives to revitalize the properties of the aged binders.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:be6f264602636c542b0ef12485029037db57c9ae4474e2746b1fca76af670d15
Download URL:

https://rosap.ntl.bts.gov/view/dot/25935/dot_25935_DS1.pdf
File Type:

[PDF-124.32 KB]