A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Gel Permeation Chromatography Analysis of Asphalt-Based Joint Sealants
The premature failure of field molded pavement joint sealants has led to increased maintenance cost and can reduce the life cycle of a pavement structure. Two possible causes of premature failure of pavement joint sealants are prolonged heating prior to installation and excessive aging after it has been installed into the joint. This laboratory study was conducted to evaluate the use of gel permeation chromatography (GPC) as a method for identifying sealants that have been exposed to prolonged heating or that have aged because of natural weathering. This research consisted of a literature review and a three-phase laboratory study. Material specification testing and GPC analysis were conducted to determine if physical and/or molecular size distribution changes could be detected in the sealants. The conclusions of the laboratory study indicated that GPC analysis could be used to detect changes in sealant materials caused by exposure to extended heating and aging, but that the detected changes were inconsistent and could not be correlated with physical test properties.... Asphalt based sealants, Hot-applied sealants, Federal Specification SS-S-1401, Pavement joint sealants, Gel permeation chromatography.
Gel Permeation Chromatography Analysis of Asphalt-Based Joint Sealants
The premature failure of field molded pavement joint sealants has led to increased maintenance cost and can reduce the life cycle of a pavement structure. Two possible causes of premature failure of pavement joint sealants are prolonged heating prior to installation and excessive aging after it has been installed into the joint. This laboratory study was conducted to evaluate the use of gel permeation chromatography (GPC) as a method for identifying sealants that have been exposed to prolonged heating or that have aged because of natural weathering. This research consisted of a literature review and a three-phase laboratory study. Material specification testing and GPC analysis were conducted to determine if physical and/or molecular size distribution changes could be detected in the sealants. The conclusions of the laboratory study indicated that GPC analysis could be used to detect changes in sealant materials caused by exposure to extended heating and aging, but that the detected changes were inconsistent and could not be correlated with physical test properties.... Asphalt based sealants, Hot-applied sealants, Federal Specification SS-S-1401, Pavement joint sealants, Gel permeation chromatography.
Gel Permeation Chromatography Analysis of Asphalt-Based Joint Sealants
R. T. Graham (author) / L. N. Lynch (author)
1993
116 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Civil Engineering , Materials Degradation & Fouling , Laboratory & Test Facility Design & Operation , Asphalt , Gel permeation chromatography , Pavements , Failure , Heating , Installation , Life cycles , Maintenance , Specifications , Structures , Test and evaluation , Weathering , Civil engineering , Moisture , Adhesion , Field tests , Performance(Engineering) , Sealant materials , Aging(Materials)
| Engineering Index Backfile | 1963
British Library Online Contents | 1999
Engineering Index Backfile | 1968