干旱区生态环境知识资源中心(Arid): Compaction delay and its effect on the geotechnical properties of lime treated semi-arid soils

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DOI	10.1080/14680629.2020.1784256
	Compaction delay and its effect on the geotechnical properties of lime treated semi-arid soils
	Moghal, Arif Ali Baig; Ashfaq, Mohammed; Al-Obaid, Ali Abdul Kareem Hamood; Abbas, Mohammad Farid; Al-Mahbashi, Ahmed Mohammed; Shaker, Abdullah Ali
通讯作者	Moghal, AAB
来源期刊	ROAD MATERIALS AND PAVEMENT DESIGN
ISSN	1468-0629
EISSN	2164-7402
英文摘要	Quality construction control requires ensuring that compacted fills are properly placed without any significant delay between mixing and compaction of the wet soil mixture. When chemical treatment is resorted to meet the shortcomings in the use of locally available materials, the delay in compaction (time elapsed between mixing and compaction of the wet soil mixture) plays a significant role as it dictates the final in-site density values achieved. In this study, the effect of delay in compaction on the density and moisture content relationships was evaluated for the delay periods of 1hr, 4hr, 24 hr and 7 days. The study was even extended to lime treated soils (at 2% and 4% by dry weight of soil). The time lag which occurs immediately after the onset of wet mixing and compaction often results in variation in geotechnical properties. Accordingly, an attempt was also made to study the effect of delay in compaction on the hydraulic conductivity, compressibility and unconfined compressive strength (UCS) behaviour of plastic clays sourced from the semi-arid region. In order to understand the variations in microstructure, MIP tests (Mercury Intrusion Porosimetry) were conducted at higher delay periods when treated with lime. From the results, it was observed that delay in compaction led to an increase in the hydraulic conductivity and compressibility of both soils. Furthermore, the UCS of both the soils showed a decreasing trend with the increase in the delay period. The agglomeration of clay particles leads to the formation of clods at higher delay periods which resist the compaction energy resulting in reduced density values which in-turn affect the geotechnical properties.
英文关键词	Delay lime compaction density hydraulic conductivity unconfined compression strength compressibility
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000547392300001
WOS关键词	COMPRESSIBILITY BEHAVIOR
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	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328087
作者单位	[Moghal, Arif Ali Baig; Ashfaq, Mohammed] Natl Inst Technol, Dept Civil Engn, Warangal, Andhra Pradesh, India; [Al-Obaid, Ali Abdul Kareem Hamood; Al-Mahbashi, Ahmed Mohammed; Shaker, Abdullah Ali] King Saud Univ, Coll Engn, Dept Civil Engn, Riyadh, Saudi Arabia; [Abbas, Mohammad Farid] Prince Sattam bin Abdulaziz Univ, Civil Engn Dept, Alkharj, Saudi Arabia; [Abbas, Mohammad Farid] Housing & Bldg Natl Res Ctr, Soil Mech & Geotech & Res Inst, Giza, Egypt
推荐引用方式 GB/T 7714	Moghal, Arif Ali Baig,Ashfaq, Mohammed,Al-Obaid, Ali Abdul Kareem Hamood,et al. Compaction delay and its effect on the geotechnical properties of lime treated semi-arid soils[J]. King Saud University.
APA	Moghal, Arif Ali Baig,Ashfaq, Mohammed,Al-Obaid, Ali Abdul Kareem Hamood,Abbas, Mohammad Farid,Al-Mahbashi, Ahmed Mohammed,&Shaker, Abdullah Ali.
MLA	Moghal, Arif Ali Baig,et al."Compaction delay and its effect on the geotechnical properties of lime treated semi-arid soils".ROAD MATERIALS AND PAVEMENT DESIGN