A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Comparison of Hot Rubber Crack Sealants to Emulsified Asphalt Crack Sealants (First Report of a Three-Year Study)
This is the first report from Center for Transportation Research on the Project 4061. It presents the results, findings, conclusions, and recommendations based on the surveys, lab tests, and information collected on test sections for the first year of a 3 year study. Sealing and filling cracks has always been an important consideration in pavement maintenance. Hot rubber asphalt has been the most commonly used material for this purpose providing good performance in most cases. However, safety has been an issue with the use of hot rubber asphalt crack sealants because they must be applied at approximately 350 deg F - 400 deg F In addition, vehicle tires can easily pick up material if sufficient adherence is not developed between the sealant and the crack sides. Some Texas Department of Transportation districts have been using cold pour asphalt emulsion crack sealants to address the safety problem. However, cold pour crack sealant requires longer setting and curing time, especially in areas of high humidity. In addition, the performance history of these cold sealants is not known or not well documented in comparison to the performance of hot pour crack sealants. Furthermore, the cost associated with the use of this material versus hot pour rubber asphalt is not well documented or determined. This research project is intended to compare the cost-effectiveness, ease and safety of installation, performance, and life-cycle cost for hot rubber asphalt crack sealant, cold pour asphalt emulsion crack sealant, and cold pour asphalt emulsion joint sealant. The comparison includes seven different crack and joint sealants: three cold pour and four hot pour. Eight different roads in five districts were selected for comparison of sealants. A total of thirty-three different test sections were obtained through this operation. Ease and speed of construction, as well as the original sealing cost were compared for these sealants. The crack-sealed sections in all five districts were visited approximately 3 months after construction. It is observed that the sealants show relatively good performance. However, in some of the test sections, some loss of cold pour sealants was noticed.
Comparison of Hot Rubber Crack Sealants to Emulsified Asphalt Crack Sealants (First Report of a Three-Year Study)
This is the first report from Center for Transportation Research on the Project 4061. It presents the results, findings, conclusions, and recommendations based on the surveys, lab tests, and information collected on test sections for the first year of a 3 year study. Sealing and filling cracks has always been an important consideration in pavement maintenance. Hot rubber asphalt has been the most commonly used material for this purpose providing good performance in most cases. However, safety has been an issue with the use of hot rubber asphalt crack sealants because they must be applied at approximately 350 deg F - 400 deg F In addition, vehicle tires can easily pick up material if sufficient adherence is not developed between the sealant and the crack sides. Some Texas Department of Transportation districts have been using cold pour asphalt emulsion crack sealants to address the safety problem. However, cold pour crack sealant requires longer setting and curing time, especially in areas of high humidity. In addition, the performance history of these cold sealants is not known or not well documented in comparison to the performance of hot pour crack sealants. Furthermore, the cost associated with the use of this material versus hot pour rubber asphalt is not well documented or determined. This research project is intended to compare the cost-effectiveness, ease and safety of installation, performance, and life-cycle cost for hot rubber asphalt crack sealant, cold pour asphalt emulsion crack sealant, and cold pour asphalt emulsion joint sealant. The comparison includes seven different crack and joint sealants: three cold pour and four hot pour. Eight different roads in five districts were selected for comparison of sealants. A total of thirty-three different test sections were obtained through this operation. Ease and speed of construction, as well as the original sealing cost were compared for these sealants. The crack-sealed sections in all five districts were visited approximately 3 months after construction. It is observed that the sealants show relatively good performance. However, in some of the test sections, some loss of cold pour sealants was noticed.
Comparison of Hot Rubber Crack Sealants to Emulsified Asphalt Crack Sealants (First Report of a Three-Year Study)
Y. Yildirim (author) / M. Solaimanian (author) / T. W. Kennedy (author)
2004
130 pages
Report
No indication
English
Pavement Crack and Joint Sealants
| NTIS | 1988
Development of a Laboratory Screening Test for Asphalt Pavement Crack Sealants
| British Library Online Contents | 1999