Efficient utilization of municipal solid waste incinerator bottom ash for autoclaved aerated concrete formulation

被引：21

作者：

Liu, Yiquan ^{[1
,2
]}

Kumar, Dhanendra ^{[1
]}

Lim, Kang Hao ^{[1
]}

Lai, Yi Ling ^{[1
]}

Hu, Zhongting ^{[1
]}

Sanalkumar, Krishnan U. Ambikakumari ^{[1
]}

Yang, En-Hua ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Interdisciplinary Grad Sch, Singapore 639798, Singapore

来源：

JOURNAL OF BUILDING ENGINEERING | 2023年 / 71卷

关键词：

Municipal solid waste (MSW); Incineration bottom ash (IBA); Autoclaved aerated concrete (AAC); Classification; Characterization; Sustainability; MSWI BOTTOM; FLY-ASH; SIZE FRACTIONS; AGGREGATE; MICROSTRUCTURE; CONSTRUCTION; METAKAOLIN; IBA;

D O I：

10.1016/j.jobe.2023.106463

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Contrary to the previous research on the general utilization of municipal solid waste (MSW) incineration bottom ash (IBA) in autoclaved aerated concrete (AAC), the given study strategically utilizes IBA for AAC formulation to improve IBA utilization efficiency and to enhance the hard-ened properties of the resulting IBA-AACs. A systematic classification and characterization approach was used to determine the suitable IBA fractions for each ingredient. The classified IBA with particle size less than 0.3 mm (IBA fines), IBA glass fraction (IBA-G), and coarse non-ferrous IBA with particle size greater than 1.18 mm (coarse IBA-ONF) were used as calcium, silica, and metallic aluminum (as an aerating agent) resource, respectively. The resulting IBA-AACs showed much higher specific strengths (about 40% enhancement) than the Control AAC due to the for-mation of relatively pure tobermorite gel. The leaching test results confirmed the safe utilization of AAC during and after the service life. The utilization of classified IBA optimized the amount of IBA that can be incorporated in AAC.

引用

页数：14

共 45 条

[1] Evaluation and prediction of emissions from a road built with bottom ash from municipal solid waste incineration (MSWI) [J].

Åberg, A ;

Kumpiene, J ;

Ecke, H .

SCIENCE OF THE TOTAL ENVIRONMENT, 2006, 355 (1-3) :1-12

[2]

[Anonymous], 2015, Singapore 2065: Leading Insights on Economy and Environment from 50 Singapore Icons and Beyond

[3]

[Anonymous], 2002, EN124572

[4]

[Anonymous], 1996, Method 3052: Microwave assisted acid digestion of siliceous and organically based matrices

[5] The practice and challenges of solid waste management in Singapore [J].

Bai, RB ;

Sutanto, M .

WASTE MANAGEMENT, 2002, 22 (05) :557-567

[6] MSWI ashes as mineral additions in concrete [J].

Bertolini, L ;

Carsana, M ;

Cassago, D ;

Quadrio Curzio, A ;

Collepardi, M .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (10) :1899-1906

[7]

Bethani S., 2012, Synthetic aggregates comprising sewage sludge and other waste materials and methods for producing such aggregates, Patent No. [CN101137592B, 101137592]

[8] Life cycle assessment of disposal of residues from municipal solid waste incineration:: Recycling of bottom a sh in road construction or landfilling in Denmark evaluated in the ROAD-RES model [J].

Birgisdottir, H. ;

Bhander, G. ;

Hauschild, M. Z. ;

Christensen, T. H. .

WASTE MANAGEMENT, 2007, 27 (08) :S75-S84

[9] Properties of lightweight aggregate produced by rapid sintering of incinerator bottom ash [J].

Cheeseman, CR ;

Makinde, A ;

Bethanis, S .

RESOURCES CONSERVATION AND RECYCLING, 2005, 43 (02) :147-162

[10] Incinerator bottom ash (IBA) aerated geopolymer [J].

Chen, Zhitao ;

Liu, Yiquan ;

Zhu, Weiping ;

Yang, En-Hua .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 112 :1025-1031

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