NDLI: Use of Waste to Energy Bottom Ash as an Aggregate in Portland Cement Concrete: Impacts of Size Fractionation and Carbonation

Content Provider	Springer Nature Link
Author	Roessler, Justin Paris, Jerry Ferraro, Christopher C. Watts, Benjamin Townsend, Timothy
Copyright Year	2016
Abstract	The use of alternatives, especially recycled materials, as substitute to naturally mined aggregates in concrete is an issue that is garnering more consideration with respect to the construction industry. This research contribution presents work in which bottom ash from a waste to energy facility was used as a partial aggregate replacement in Portland cement concrete (PCC). Compressive strength testing of specimens demonstrated a decrease in strength with increasing ash replacement percentages. This effect was significantly larger for the samples containing <9.5 mm ash fraction, this was attributed to the reactivity of the aluminum in the ash. The effect of aging the ash on concrete properties was assessed through an accelerated carbonation experiment. Carbonation was found to have little effect on the strength and durability properties of ash-amended PCC. Ash-amended concrete containing the larger ash size fraction was able to meet set design strengths at low replacement percentages (25 %).
Starting Page	1521
Ending Page	1530
Page Count	10
File Format	PDF
ISSN	18772641
Journal	Waste and Biomass Valorization
Volume Number	7
Issue Number	6
e-ISSN	1877265X
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-03-31
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Concrete Waste to energy Ash Beneficial use Pozzolanic Surface resistivity Engineering Environment Renewable and Green Energy Industrial Pollution Prevention Waste Management/Waste Technology Environmental Engineering/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Environmental Engineering Renewable Energy, Sustainability and the Environment

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