干旱区生态环境知识资源中心(Arid): Alternative stabilised rammed earth materials incorporating recycled waste and industrial by-products: Life cycle assessment

Arid

DOI	10.1016/j.conbuildmat.2020.120997
	Alternative stabilised rammed earth materials incorporating recycled waste and industrial by-products: Life cycle assessment
	Meek, Alexandra H.; Elchalakani, Mohamed; Beckett, Christopher T. S.; Grant, Timothy
通讯作者	Meek, AH ; Elchalakani, M (corresponding author), Univ Western Australia, Dept Civil Environm & Min Engn, M051,35 Stirling Highway, Crawley, WA 6009, Australia.
来源期刊	CONSTRUCTION AND BUILDING MATERIALS
ISSN	0950-0618
EISSN	1879-0526
出版年	2021
卷号	267
英文摘要	As the Paris Agreement target year of 2030 draws nearer, it is becoming increasingly evident that neither Australia nor many other nations are progressing at a rate sufficient to meet greenhouse gas emissions targets. One area in which to improve performance is in the use of low embodied energy construction materials. Rammed earth (RE) is often considered to be one such material. However, many modern RE variations incorporate cement: a significant contributor to global CO2 emissions. RE materials with low greenhouse gas emissions have been developed as replacements for conventional construction materials. In this series, we examine the strength development, durability and sustainability, via life cycle assessment, of these new materials. This paper explores the cradle-to-gate greenhouse gas emissions of RE materials incorporating recycled waste (crushed brick and concrete), industrial by-products (ground granulated blast furnace slag, fly ash and silica fume) and either NaOH or hydrated lime. These are then compared to construction techniques conventionally used in Australia (cavity brick and brick veneer). Attributional life cycle assessments were carried out for hypothetical building envelopes suitable for climate zones 1-7, assuming construction in metropolitan Perth and 600 km inland (Kalgoorlie, WA). Results showed that greenhouse gas emissions per vertical square metre of wall could be reduced by 73% or 57% respectively when compared to traditional cavity brickwork or brick veneer. This is in contrast to RE incorporating cement, which produced a saving of just 15% compared to brick veneer. If this construction technique were adopted across Australia for new, detached dwellings constructed during 2021-2030, this could represent a greenhouse gas reduction of 11.3 million tonnes CO2eq, or 1.2-1.3% of the cumulative emissions reductions required in 2021-2030 to meet Australia's Paris Agreement targets. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Sustainable building Earth building Alkali-activation Geopolymer Sustainability Circular economy Industrial waste products Recycled materials
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604573000069
WOS关键词	SIMULATED THERMAL-BEHAVIOR ; ARID CLIMATE. PART ; INDOOR RADON ; HOUSES
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347799
作者单位	[Meek, Alexandra H.; Elchalakani, Mohamed; Beckett, Christopher T. S.] Univ Western Australia, Dept Civil Environm & Min Engn, M051,35 Stirling Highway, Crawley, WA 6009, Australia; [Beckett, Christopher T. S.] Univ Edinburgh, Sch Engn, Inst Infrastruct & Environm, Edinburgh EH9 3JL, Midlothian, Scotland; [Grant, Timothy] Lifecycles, Suite 5,207-209 Victoria Parade, Fitzroy, Vic 3065, Australia
推荐引用方式 GB/T 7714	Meek, Alexandra H.,Elchalakani, Mohamed,Beckett, Christopher T. S.,et al. Alternative stabilised rammed earth materials incorporating recycled waste and industrial by-products: Life cycle assessment[J]. University of Western Australia,2021,267.
APA	Meek, Alexandra H.,Elchalakani, Mohamed,Beckett, Christopher T. S.,&Grant, Timothy.(2021).Alternative stabilised rammed earth materials incorporating recycled waste and industrial by-products: Life cycle assessment.CONSTRUCTION AND BUILDING MATERIALS,267.
MLA	Meek, Alexandra H.,et al."Alternative stabilised rammed earth materials incorporating recycled waste and industrial by-products: Life cycle assessment".CONSTRUCTION AND BUILDING MATERIALS 267(2021).