Effect of new soil stabilizers on the compressive strength of dune sand

Lahalih, Shawqui M.; Ahmed, Neaz

doi:10.1016/s0950-0618(98)00024-5

Cited by 56 publications

(20 citation statements)

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“…There are many types of polymers used for soil stabilisation including resorcinol-formaldehyde resin, phenol formaldehyde resin, furan resins, polyacrylates and polyurethanes. However, urea formaldehyde resins (UFR) are the most commonly used due to their low price compared with the others (Lahalih and Ahmed, 1998). Additionally, there is a possibility of creating hydrogen bonds between free hydroxyl groups and the soil (clay) alumino-silicates with the CO groups in UFR.…”

Section: Synthetic Binders Polymers and Adhesivesmentioning

confidence: 99%

Soil stabilisation and earth construction: materials, properties and techniques

Hall

Najim

Dehdezi

2012

Modern Earth Buildings

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Section: Synthetic Binders Polymers and Adhesivesmentioning

confidence: 99%

Soil stabilisation and earth construction: materials, properties and techniques

Hall

Najim

Dehdezi

2012

Modern Earth Buildings

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“…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 emulsions [20][21],polymer emulsions [22][23][24][25], polypropylene fibers [26][27] and even, waste [28][29][30] Other researchers have accumulated the results of field and laboratory analyses to evaluate dune sands with respect to their use as fine aggregates in cement mortar or concrete, concluding that their use in civil engineering is viable [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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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“…Compared with other sand‐fixing materials, polymer material exhibits higher consolidating strength, less pollution, and better environmental compatibility. The reported polymer sand‐fixing materials in previous literatures include polyacrylamide, urea‐formaldehyde resin (UF), poly(vinyl acetate) (PVAc), poly(vinyl alcohol) (PVA), polyurethane (PU), and rubber emulsion, and so on. However, the PVAc, not only presents a high adhesion ability, but also is prepared mainly with vinyl acetate that usually is the cheapest monomer in China, which will noticeably reduce the cost of the desertification combating.…”

Section: Introductionmentioning

confidence: 99%

Inner relationship between the damping property and the sand‐fixing durability of polymer materials

Xie

Liu

Chen

et al. 2018

J of Applied Polymer Sci

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This article for the first time reveals the impact of the damping property of materials on its sand‐fixing durability. Based on the turbulence of wind, it could be regarded as a kind of periodic mechanical force. So, when polymers are used to fix sand, they would constantly perceive a periodic force of wind. And, this force would give rise to yielding fracture and fatigue of polymer, so that the sand‐fixing durability of material could be weakened significantly. To impair the periodic force of wind and extend the durability of sand‐fixation polymer materials, we, for the first time, introduce the designing principle of macromolecular damping material, that can transform external mechanical force into own thermal energy, into the preparation of sand‐fixing materials. In this work, poly(vinyl acetate) (PVAc) emulsions with different dangling chain have been synthesized successfully in order to improve their damping properties. The effects of the prepared PVAc with gradually growing dangling chain length have been investigated on their damping properties, on the sand stabilization strengths and sand‐fixing durability. And the relationship between the damping property and the sand‐fixing property of PVAc was built by simulating wind tunnel test. The experimental results show that, introducing the dangling chain could significantly improve the damping temperature range and extend the anti‐wind erosion time of PVAc. It has to be noticed that, introducing the dangling chain, will provide a double effects for the sand stabilization strength of materials, i.e., it can improve both the flexibility of the side‐chain and the internal friction of the molecular chains. Wind tunnel test verified that introducing the dangling chain can raise the damping performance of material and convert more periodic force of wind into the friction heat of molecular chain, and thus impair the damage of wind on the materials and improve their anti‐wind erosion properties. These findings suggest that the damping material applied in sand fixation is a bright idea and successful method for improving the sand‐fixing durability. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47208.

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Effect of new soil stabilizers on the compressive strength of dune sand

Cited by 56 publications

References 0 publications

Soil stabilisation and earth construction: materials, properties and techniques

Soil stabilisation and earth construction: materials, properties and techniques

Uses of Sand Dunes as Building Materials

Inner relationship between the damping property and the sand‐fixing durability of polymer materials

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