干旱区生态环境知识资源中心(Arid): Wadi gravel - a new concrete aggregate in Qatar: Part 1-investigation, processing and trials

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DOI	10.1144/qjegh2019-086
	Wadi gravel - a new concrete aggregate in Qatar: Part 1-investigation, processing and trials
	Hassan, Khaled; Reid, Murray; Sims, Ian; Al-Kuwari, Mohammed bin Saif; Attia, Mohamed; Sediq, Ahmed; Al-Naemi, Abdulrahman
通讯作者	Hassan, K
来源期刊	QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY
ISSN	1470-9236
EISSN	2041-4803
出版年	2020
卷号	53 期号:3 页码:386-399
英文摘要	In hot desert regions, attention is turning to local sources of aggregate that were previously regarded as 'too difficult' to exploit. This paper describes an investigation of such a deposit in Qatar. The material, known as Wadi gravel, is a gravelly sand of Tertiary age cemented by gypsum. A field survey found the gravel content to be in the range of 10 to 20%. As-dug samples had excessively high sulfate content, which could not be removed with conventional aggregate operations. However, intensive treatment in a local sand-processing plant using multi-stage crushing, screening and washing reduced the sulfate to acceptable levels. Petrographic analysis was carried out to identify rock types potentially susceptible to Alkali Silica Reaction (ASR). Trial concrete mixes using the processed Wadi gravel were found to produce satisfactory C40 and C60 concrete. Fullscale building trials were constructed to demonstrate the practicality of using the gravel and assess in-service performance. The smooth surface and rounded particles of Wadi gravel improved the concrete workability and strength, and durability-related properties were similar to concrete made with imported gabbro. Strata similar to Wadi gravel occur widely in hot desert regions and could be useful sources of coarse and fine aggregate for concrete.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000559016300005
WOS关键词	ARABIAN PENINSULA ; DESERT AREAS ; GULF
WOS类目	Engineering, Geological ; Geosciences, Multidisciplinary
WOS研究方向	Engineering ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325589
作者单位	[Hassan, Khaled] Infrastruct Res & Dev, Doha, Qatar; [Reid, Murray] Infrastruct Res & Dev, Glasgow, Lanark, Scotland; [Sims, Ian] RSK Environm Ltd, Hemel Hempstead, England; [Al-Kuwari, Mohammed bin Saif] Minist Municipal & Environm, Environm & Municipal Studies Inst, Doha, Qatar; [Attia, Mohamed] Zagazig Univ, Fac Engn, Zagazig, Egypt; [Sediq, Ahmed] Qatar Stand, Qual & Conform Dept, Doha, Qatar; [Al-Naemi, Abdulrahman] Private Engn Off, Doha, Qatar
推荐引用方式 GB/T 7714	Hassan, Khaled,Reid, Murray,Sims, Ian,et al. Wadi gravel - a new concrete aggregate in Qatar: Part 1-investigation, processing and trials[J],2020,53(3):386-399.
APA	Hassan, Khaled.,Reid, Murray.,Sims, Ian.,Al-Kuwari, Mohammed bin Saif.,Attia, Mohamed.,...&Al-Naemi, Abdulrahman.(2020).Wadi gravel - a new concrete aggregate in Qatar: Part 1-investigation, processing and trials.QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY,53(3),386-399.
MLA	Hassan, Khaled,et al."Wadi gravel - a new concrete aggregate in Qatar: Part 1-investigation, processing and trials".QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY 53.3(2020):386-399.