Field Implementation of Rubberized Chip Seal

Gheni, Ahmed; Pourhassan, Alireza; ElGawady, Mohamed; Darwish, Yasser; Schonberg, William; Missouri University of Science and Technology. Department of Civil, Architectural, and Environmental Engineering

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Field Implementation of Rubberized Chip Seal

2018-12-01
By Gheni, Ahmed ; Pourhassan, Alireza ; ElGawady, Mohamed ; ...

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Creators:

Gheni, Ahmed ; Pourhassan, Alireza ; ElGawady, Mohamed ; Darwish, Yasser ; Schonberg, William

Gheni, Ahmed ; Pourhassan, Alireza ; ElGawady, Mohamed ; Darwish, Yasser ; Schonberg, William Less -
Corporate Creators:

Missouri University of Science and Technology. Department of Civil, Architectural, and Environmental Engineering
Corporate Contributors:

Missouri. Department of Transportation. Construction and Materials Division ; United States. Federal Highway Administration

Missouri. Department of Transportation. Construction and Materials Division ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aggregate Retention British Pendulum Test Chip Seals Crumb Rubber Curing Time Highways Laboratory Tests Macrostructure Maintenance And Preservation Materials Pavements Skid Resistance Skid Resistance Tests Texture
Publication/ Report Number:

CMR 18-012
Resource Type:

Tech Report
Geographical Coverage:

United States ; Missouri

United States ; Missouri Less -
TRIS Online Accession Number:

01690344
Edition:

Final Report (September 2017-December 2018)
Corporate Publisher:

Missouri University of Science and Technology. Dept. of Civil, Architectural, and Environmental Engineering
Abstract:

Chip seals have been widely used as a pavement maintenance surface treatment due to its competitive cost and construction time. Recently, the research team developed a rubberized chip seal where natural aggregate is replaced with crumb rubber obtained from recycled tires. During this study, a total of 108 laboratory specimens and a field chip seal section with different crumb rubber replacement ratios were investigated. Aggregate macrostructure, retention, and skid resistance were measured. The crumb rubber showed a remarkable performance in aggregate retention measured using the Vialit and Pennsylvania tests. The values of the mean texture depth of rubberized chip seal specimens were significantly higher than those of the conventional chip seal. Finally, while a reduction in the British Pendulum Number (BPN) was recorded with an increase in the crumb rubber replacement ratio immediately after construction, after a period of more than a year of service life in the experimental section road, the rubberized chip seal segments recorded a much higher BPN compared to that of the conventional chip seal segment. Furthermore, it is recommended also to increase the curing time for chip seal, regardless of aggregate type, to at least six hours to improve the performance of the chip seal.
Format:

PDF
Funding:

MoDOT project # TR201804
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:54d4e89f59f2f265c3e27ae1bb7ca1bf13dc077e1e244e3bea75824ca871ad1b
Download URL:

https://rosap.ntl.bts.gov/view/dot/37915/dot_37915_DS1.pdf
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Field Implementation of Rubberized Chip Seal

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