Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Sensitivity of Nozzle-Based Foamed Asphalt Binder Characteristics to Foaming Parameters
Date
2014-01-01
Author
Öztürk, Hande Işık
Kutay, M. Emin
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
8
views
0
downloads
Cite This
Foam-based warm-mix asphalt technologies decrease the overall viscosity of the asphalt mixture at lower temperatures so that it is workable during construction. However, after construction, viscosity increases rapidly as the foam disappears and the temperature drops. Although the production of the foamed binder is a relatively simple process, in which hot binder is mixed with a limited amount of water (typically 1% to 3% by weight of the binder), the rheology of the foamed binder is complex. The characteristics of foamed binders depend on various factors such as the binder type, grade, and modification; the foaming technology used; amount of water; and temperature. This study investigated the sensitivity of the characteristics of foamed binders to parameters such as injected air pressure and water content. The foamed binder characteristics, including the expansion ratio, half-life, foam index, bubble size distribution, and surface area index, were measured with a novel automated laboratory device called the asphalt foam collapse test. The measurements were conducted in several conditions, including (a) constant water content and variable air pressure, (b) variable water content and constant air pressure, and (c) variable air pressure and water content. It was concluded that both water content and air pressure significantly affected foamed binder characteristics and their internal morphology.
URI
https://hdl.handle.net/11511/48740
Journal
TRANSPORTATION RESEARCH RECORD
DOI
https://doi.org/10.3141/2444-14
Collections
Department of Civil Engineering, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
H. I. Öztürk and M. E. Kutay, “Sensitivity of Nozzle-Based Foamed Asphalt Binder Characteristics to Foaming Parameters,”
TRANSPORTATION RESEARCH RECORD
, no. 2444, pp. 120–129, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48740.