Location
New York, New York
Date
15 Apr 2004, 7:00pm - 8:30pm
Abstract
Over the last decade, there has been increased attention aimed toward the use of coal combustion products in geotechnical applications. Several studies have been completed to determine the properties of bottom ash from burning of pulverized coal, amended with admixtures such as bentonite, clay, and lime. Because of significant volume change characteristics of bentonite, soils or similar granular materials amended with it should be evaluated for their swelling behavior. A study recently conducted on bottom ash has shown that strength and stiffness characteristics of bottom ash amended with bentonite change significantly with the curing of the mixture. Therefore, this study was initiated to investigate the effect of curing and moisture content on the swelling characteristics of pulverized coal combustion bottom ash amended with bentonite. Bottom ash samples containing 20 percent bentonite and prepared at 16 and 18 percent initial moisture content were tested in this investigation. Results presented show that curing and initial moisture content of the mixtures have significant effect on the swelling potential of bottom ash-bentonite mixtures.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Kumar, Sanjeev and Burrus, Nick, "Effect of Curing Time and Moisture Content on Swelling Potential of Bottom Ash-Bentonite Mixtures" (2004). International Conference on Case Histories in Geotechnical Engineering. 27.
https://scholarsmine.mst.edu/icchge/5icchge/session08/27
Effect of Curing Time and Moisture Content on Swelling Potential of Bottom Ash-Bentonite Mixtures
New York, New York
Over the last decade, there has been increased attention aimed toward the use of coal combustion products in geotechnical applications. Several studies have been completed to determine the properties of bottom ash from burning of pulverized coal, amended with admixtures such as bentonite, clay, and lime. Because of significant volume change characteristics of bentonite, soils or similar granular materials amended with it should be evaluated for their swelling behavior. A study recently conducted on bottom ash has shown that strength and stiffness characteristics of bottom ash amended with bentonite change significantly with the curing of the mixture. Therefore, this study was initiated to investigate the effect of curing and moisture content on the swelling characteristics of pulverized coal combustion bottom ash amended with bentonite. Bottom ash samples containing 20 percent bentonite and prepared at 16 and 18 percent initial moisture content were tested in this investigation. Results presented show that curing and initial moisture content of the mixtures have significant effect on the swelling potential of bottom ash-bentonite mixtures.
