01077202

Component

https://doi.org/10.3141/1991-14

http://scholar.google.com...Qadi&publication_year=2007

Bituminous sealants used in roadway maintenance often have a short effective service life, in great part as a result of improper installation and heating, in particular. To determine the effect of thermal history on sealant characteristics, sealant samples were collected during an operation that started with reheating of a full kettle of bituminous sealant. Results of Fourier transform infrared spectroscopy, thermogravimetry, gel permeation chromatography, and dynamic shear rheometry showed that the sealant had degraded and that the extent of degradation was greatest early in the operation. Application of degraded sealant throughout installation showed the need for improved material and construction specifications, along with improved field control measures.

01077199

English

pp 119-123

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104166

Print

Figures (7) ; References (17) ; Tables (3)

Bituminous materials; Field studies; Fourier transforms; Gel permeation chromatography; Highway maintenance; Infrared spectroscopy; Installation; Laboratory tests; Sealing compounds; Service life; Thermal degradation; Thermogravimetric analysis

Dynamic shear rheometry

Design; Highways; Maintenance and Preservation; Materials; I31: Bituminous Binders and Materials; I61: Equipment and Maintenance Methods

TRIS, TRB, ATRI

Sep 27 2007 4:06PM

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