Performance Evaluation of Chip Seals with Polymer-Modified Emulsions
This paper describes how chip seals provide a durable and functional pavement surface and serve as a highly economical highway maintenance option when constructed properly. The data and literature collected suggest that chip seal sections constructed with polymer-modified emulsions (PMEs) provide better initial and long-term performance and also extend the overall service life of pavements. This paper compares the performance of chip seals constructed with PME versus those constructed with non-modified emulsion. The overall performance evaluation is based on aggregate retention performance. Three kinds of emulsion (CRS-2, CRS-2P, and CRS-2L) are used to fabricate samples in the laboratory and in the field. Adhesion of the emulsions is examined using the Vialit test with various curing times and temperature conditions in the laboratory. To evaluate the aggregate retention performance of the chip seals, the Vialit test, flip-over test (FOT), and the third-scale Model Mobile Loading Simulator (MMLS3) are employed. The results from these tests indicate that the PMEs (CRS-2P and CRS-2L) enhance the aggregate retention performance, and do so more significantly in the early stages and at low temperatures. This improvement is due to the fast and improved adhesion of the PME and its ability to enhance the aggregate retention performance at low temperatures.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02702932
-
Authors:
- Lee, Jaejun
- Kim, Y Richard
-
Conference:
- Asphalt Paving Technology 2009
- Location: Minneapolis MN, United States
- Date: 2009-3-15 to 2009-3-18
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Print
- Features: CD-ROM; Figures; Photos; References; Tables;
- Pagination: pp 103-136
-
Serial:
- Journal of the Association of Asphalt Paving Technologists
- Volume: 78
- Publisher: Association of Asphalt Paving Technologists (AAPT)
- ISSN: 0270-2932
- Serial URL: https://www.asphalttechnology.org/site_page.cfm?pk_association_webpage_menu=9169&pk_association_webpage=19109
Subject/Index Terms
- TRT Terms: Aggregates; Asphalt emulsions; Chip seals; Pavement performance; Pavements; Performance evaluations; Polymer asphalt; Texture
- Uncontrolled Terms: Model mobile load simulators
- Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01158715
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 11 2010 12:05PM