Utilization of municipal solid waste bottom ash and recycled aggregate in concrete

Jurič, B., Hanžič, L., Ilić, R. and Samec, N. (2006) Utilization of municipal solid waste bottom ash and recycled aggregate in concrete. Waste Management, 26 12: 1436-1442. doi:10.1016/j.wasman.2005.10.016


Author Jurič, B.
Hanžič, L.
Ilić, R.
Samec, N.
Title Utilization of municipal solid waste bottom ash and recycled aggregate in concrete
Journal name Waste Management   Check publisher's open access policy
ISSN 0956-053X
1879-2456
Publication date 2006-01-31
Sub-type Article (original research)
DOI 10.1016/j.wasman.2005.10.016
Open Access Status Not yet assessed
Volume 26
Issue 12
Start page 1436
End page 1442
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Abstract In the combustion process of municipal solid waste (MSW), bottom ash (BA) represents the major portion of the solid residue. Since BA is composed of oxides, especially SiO2 and CaO, the feasibility of its application in concrete as a substitute for cement was tested. It was found that at the age of 28 days, the flexural and compressive strengths of the binder linearly decrease at the rate of 0.03 and 0.02 MPa per wt% of BA in the binder, respectively. According to the results it may be recommended to replace up to 15 wt% of cement by BA and to use such binder where a low strength of concrete elements is required. Furthermore, the aggregate used for low strength concrete need not be of a very good quality. Therefore, gravel aggregate was partially replaced by recycled aggregate (RA). Consistency measured by slump was significantly reduced (>50%) when BA or/and RA were introduced into the mixture. However, concrete density and compressive strength were not affected and were ∼2300 kg/m3 and ∼40 MPa, respectively.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Civil Engineering Publications
 
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Created: Tue, 27 Jun 2017, 15:10:28 EST by Lucija Hanzic on behalf of School of Civil Engineering