CRACK SEALING IN FLEXIBLE PAVEMENTS: A LIFE-CYCLE COST ANALYSIS
Pavement cracks are usually sealed to prevent water from entering base course layers. Experience suggests that water in pavement layers hastens pavement deterioration and, therefore, increases rehabilitation costs. Initially the Ministry of Transportation, Ontario (MTO), Canada, had limited success in sealing cracks because inappropriate materials and installation procedures were used. This setback during the initial stages of development in crack sealing raised questions about the effectiveness of crack sealing in reducing the rate of pavement deterioration. In the 1970s and 1980s MTO carried out several field studies to develop an effective crack sealing procedure and to study the influence of crack sealing on pavement distress and performance. The cost-effectiveness of this treatment was investigated as well. The results of the studies indicate that sealing cracks is a viable and cost-effective preventive maintenance treatment and can extend the service life of asphalt pavements by at least 2 years. However, for optimum benefits the crack sealing program must be implemented according to guidelines proposed. The guidelines provide a basis for the selection of suitable pavements and cracks, sealant materials, and application procedures.
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- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309059011
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1529, Work Zone Safety and Pavement Markings and Materials.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Ponniah, J E
- Kennepohl, G J
- Publication Date: 1996
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 86-94
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Serial:
- Transportation Research Record
- Issue Number: 1529
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Cost effectiveness; Cracking; Field studies; Flexible pavements; Guidelines; Life cycle costing; Measures of effectiveness; Methodology; Pavements; Preventive maintenance; Sealing; Sealing compounds; Service life
- Uncontrolled Terms: Effectiveness
- Geographic Terms: Canada
- Old TRIS Terms: Pavement life; Sealing
- Subject Areas: Design; Finance; Highways; Maintenance and Preservation; Pavements; I61: Equipment and Maintenance Methods;
Filing Info
- Accession Number: 00727291
- Record Type: Publication
- ISBN: 0309059011
- Files: TRIS, TRB
- Created Date: Oct 16 1996 12:00AM