Experimental research on compaction characteristics of aeolian sand

Yuan, Yonggui; Wang, Xuancang; Zhou, Xiaojie

doi:10.1007/s11709-008-0053-3

Cited by 28 publications

(21 citation statements)

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“…The first attempts to evaluate the suitability of this soil as construction material was published by Khan (1982) [14], based on the analysis of several samples from Libya, where relevant implications of its utilization in highways are discussed, whereas Al-Sanad and Bindra (1984) [15] analyzed different samples collected from dune sands in Saudi Arabia. After those preliminary investigations, the early systematic geotechnical characterizations of aeolian sands, supported by laboratory-tests, were published in [16][17][18][19][20][21][22][23][24][25], concluding with guidelines for its application for construction purposes. A comprehensive review of the most common geotechnical properties of aeolian sands in the world, extracted from a huge collection of bibliographic sources, can be found in Elipe and Lopez-Querol [26].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

López‐Querol

Arias-Trujillo

GM-Elipe

et al. 2017

Construction and Building Materials

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The improvement reached on the compaction and bearing capacity of aeolian sand collected in Jeddah (Saudi Arabia) after its stabilization with Portland cement is evaluated, comparing the behavior for both treated and untreated samples. With the aim of using this type of soil in the construction of embankments for road or railway applications, the results obtained have been evaluated in terms of maximum dry density, optimum moisture content (compaction test) and bearing capacity (CBR). Special attention has been paid to the influence of the confining conditions on the results, scarcely analyzed in the literature, by comparing the load-displacement curves during penetration stage in the CBR tests for both confined and unconfined specimens. Different contents of Portland cement have been explored (out of 6% of dry soil weight) to stabilize this material. The results obtained show a clear linear correlation between of compaction characteristics and CBR respect to the percentage of cement, obtaining, as expected, higher improvement for treated-material with higher content of cement, also strongly influenced by the confinement state. Thanks to this treatment, it is possible to employ this material in applications with low-confinement support, which is impossible without a previous proper stabilization. Finally, two practical indices have been defined to measure the degree of improvement reached, involving both cement content and confinement.

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Section: Introductionmentioning

confidence: 99%

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

López‐Querol

Arias-Trujillo

GM-Elipe

et al. 2017

Construction and Building Materials

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“…Different aggregate grading may have the same FM. FM of fine aggregates is useful in estimating proportions of fine and coarse aggregates in concrete mixtures [42]. Size analysis of the studied samples ( Figure-10) show different grading scales (FM) as compared with the [38], (Table-5).…”

Section: Size -Fineness Modulus-fmmentioning

confidence: 99%

“…Size analysis of the studied samples ( Figure-10) show different grading scales (FM) as compared with the [38], (Table-5). Grading is the particle size distribution of an aggregate as determined by sieve analysis [42]. Dhibdiba sand has a well-conformed match with the limits of the standard method.…”

Section: Size -Fineness Modulus-fmmentioning

confidence: 99%

“…Recent studies have been directed towards examining the engineering properties of aeolian sands and investigating the ability of using them in construction [6][7][8][9].In the last years, substantial research has been directed to examine different types of additives and their potentiality as stabilizing agents for aeolian sands. Different methods of stabilization have been reported in the literature including the use of cement [10][11][12][13], cement kiln dust [14][15][16][17], bentonite and lime [18][19], bitumen…”

Section: Introductionmentioning

confidence: 99%

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Uses of Sand Dunes as Building Materials

J. Al-Shakeri,

K. Jasim,

H. Abdullah

et al. 2021

Iraqi Journal of Science

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During the past forty years, and due to the global climate changes, Iraq had and still suffering from the spreading and expansion of large dune fields in which many new generations have been accumulated, and older ones have expanded leading to the desertification of huge agricultural and urban areas and causing vast environmental problems that have a drastic effect on the life style of the population. To tackle such a problem, many methods have been suggested and even more are applied to fix the dunes or at least to limit their spreading so that to lessen the environmental impact. Such efforts were tried in many dune areas in Iraq, but it was in vain due to the classical nature of remedy that deals only with temporary and limited results, and in many cases worsening the problem. This is evidenced from the increased nature of dune fields in both area and problems.In this study four major dune fields expanding along four governorates in middle and southern Iraq were studied minerallogically, texturally, and chemically to attest their suitability as fine aggregate for concrete mixtures. These sands are composed of major quartz, feldspars, and calcite minerals, and are devoid of fines (clays), organic matters, and salts. Explicit dune sands of the studied area are not suitable as fine aggregate due to their poor grading, trial on mixing these sands with wellgraded river sand (Dibhdiba Formation Sand) in different proportions show that the 35% is optimal for normal load works. Al-Muthana dune sands show the highest evaluations. Missan dune sands were further tested for producing pavement interlock bricks, the results confirmed their aptness for exploitation both economically and environmentally. Journal of Science, 2017, Vol. 58, No.4A pp: 1874-1897 ‫بناء‬ ‫اد‬ ‫كمو‬ ‫الرممية‬ ‫الكثبان‬ ‫رمال‬ ‫استعمال‬ ‫الشاكري‬ ‫اد‬ ‫جو‬ ‫أحمد‬ IntroductionIraq for the past four decades has been and still suffering from desertification, in which vast agricultural areas are transformed into sand dune fields. This environmental depreciation can be attributed to several factors such as climate change that leads temperatures to increase and rainfall to decrease, besides reduction in surface water resources, non-systematic farming techniques, and intensive grazing. These factors cumulatively caused the vegetation cover to be disintegrated into barren land that is vulnerable to be areas of sand dune accumulations, or act as a direct and major source for wind-blown sands. The mode and area of distribution of sand dunes in Iraq is restricted within specific areas that are characterized and influenced by geological and geographical controls.The past ten years additional sand fields and areas were shaped within new expanses thus increasing the spatial distribution of dune regions into new belts and secondary grounds that were not classified as dune areas before. Many methods have been employed to restrict the sand movement and thus to control the distribution of sand dunes, such methods include the usage of heavy oil, digging tren...

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“…Aeolian sand is the most abundant and economical material in the desert. Although it has the potential to reduce backfilling costs if used as backfilling aggregate, it is an extremely homogeneous and coarse material when compared with the other materials mentioned above, which makes its use in building or backfilling aggregate practically impossible [7,8]. However, considering their characteristics simply, it may be possible to use aeolian sand as a backfilling aggregate after mixing with ultrafine tailings.…”

Section: Introductionmentioning

confidence: 99%

Cemented Backfilling Technology of Paste-Like Based on Aeolian Sand and Tailings

2016

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Aeolian sand, tailings, and #32.5 Portland cement were used to produce backfilling aggregate, and physicochemical evaluations and proportioning tests were conducted. It is revealed that a mixture of aeolian sand and tailings can be used as a backfilling aggregate for the complementarities of their physicochemical properties; e.g., high Al 2 O 3 content in the aeolian sand and CaO content in the tailings, coarse particles of aeolian sand and fine particles of tailings, etc. In addition, the optimal backfilling aggregate was shown to have a mass fraction of 72%-74%, a cement-sand ratio of 1:8, and an aeolian sand proportion of 25%. Furthermore, viscometer tests were used to analyze the rheological characteristics, and the slurry in these optimized proportions exhibited shear thinning phenomena with an initial yield stress, which belongs to paste-like-a cemented backfilling slurry with a higher mass fraction than a two-phase flow and better flowability than a paste slurry. Finally, the application of this backfilling technology shows that it can not only realize safe mining, but also bring huge economic benefits, and has some constructive guidance for environmental protection.

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Experimental research on compaction characteristics of aeolian sand

Cited by 28 publications

References 0 publications

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

Uses of Sand Dunes as Building Materials

Cemented Backfilling Technology of Paste-Like Based on Aeolian Sand and Tailings

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