Laboratory Tests on Effectiveness of Environment-Friendly Organic Polymer on Physical Properties of Sand

Liu, Jin; Song, Zezhuo; Bai, Yaocai; Chen, Zhihao; Wei, Jihong; Wang, Ying; Qian, Wei

doi:10.1155/2018/5865247

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…Hence, a new type of soil stabilizers, that is, organic polymer soil additives, has been developed and applied in many countries during the last two decades [20][21][22][23][24][25][26][27][28]. Many types of organic polymers as soil stabilizers have been studied systematically by laboratory and field tests [26,[29][30][31][32][33]. The polymer stabilizers have been used to improve the soil to meet engineering requirements for desert land restoration, forest roads, and boreholes.…”

Section: Introductionmentioning

confidence: 99%

Unconfined Compressive Strength of Aqueous Polymer-Modified Saline Soil

Zhu

Gao

et al. 2019

International Journal of Polymer Science

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Saline soil is a special soil that consists of fine particles and has poor engineering properties. It causes salt heaving and is collapsible and corrosive. The treatment of this type of soil for the use as a resource for roadbed fillings has been one of the most important engineering topics in highway construction near coastal areas. This study introduces a new type of aqueous polymer, called ZM, which is used to amend and stabilize saline soil. To test the effects of ZM-solidified saline soil, unconfined compressive strength (UCS) tests were carried out on unmodified and ZM-modified saline soil specimens, respectively. The test results show that the ZM additive significantly improves the UCS. Based on the increase of the ZM admixture, the UCS increases with the curing time. The main increment of the UCS occurs within the first seven days of curing. In addition, the salt content has a great influence on the UCS. With increasing ZM concentration and curing time, the water stability and wetting-drying cycling resistance improve. Based on the X-ray diffraction results, the diffraction peaks of ZM-modified saline soil insignificantly change compared with those of unmodified saline soil. However, the SEM images indicate the formation of membrane structures in ZM-modified saline soil. The modification process produces denser and more stable soil because the reaction products fill voids inside the soil and form a viscous membrane structure on the soil surface.

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Section: Introductionmentioning

confidence: 99%

Unconfined Compressive Strength of Aqueous Polymer-Modified Saline Soil

Zhu

Gao

et al. 2019

International Journal of Polymer Science

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“…In the eld of engineering geology, the stability and erosion resistance of soil are crucial factors in evaluating the load-bearing capacity of foundations, mitigating ground subsidence, and designing earthquake-resistant structures. The response of soil stability and erodibility is in uenced by the particle composition, pore structure, and mineral content of the soil, in relation to moisture and pressure, as indicated by previous studies [10][11][12][13][14] . The advancement of urbanization in the Yellow River basin and other regions with comparable soils underscores the growing signi cance of investigating the soil properties of loess-like silty clay and its implications for agriculture and engineering construction.…”

Section: Introductionmentioning

confidence: 74%

Deciphering the Geological Origins and Soil Properties of Loess-Like Silty Clay in the Yellow River's Middle and Lower Basins

Liu,

Ma,

Zhou

et al. 2024

Preprint

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This study systematically investigates the characteristics and geological genesis of loess-like silty clay in the middle and lower reaches of the Yellow River. The primary distribution of loess-like silty clay is revealed through field surveys, laboratory experiments, and previous literature reviews. The impact of the Yellow River's historical evolution on its sedimentary distribution is also examined. The chemical and physical properties of the loess-like silty clay were examined, in addition to investigations into its mineral composition, microstructural characteristics, and engineering mechanical properties, in order to enhance comprehension of its attributes and formation mechanisms. The research suggests that the distinctive soil environment in the area has been influenced by numerous instances of the Yellow River overflow and channel shifts over its history, as well as the impacts of climate change, geological factors, and human activities. The primary sources of material for the loess-like silty clay consist of loess, Hipparion Red Clay, and paleosol layers. The discussion also addresses the impact of regional climate on the formation of mineral components. The aforementioned findings hold significant implications for advancing the understanding of historical climatic and paleogeographic shifts, as well as for addressing engineering challenges associated with the distribution of loess-like silty clay.

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“…For the specimens where disintegration occurs, the area after disintegration was recorded. The measured and calculated methods for disintegration area follow Liu et al [31]. The specimens without disintegration were removed from the water to carry out the direct shear tests under 100 kPa, 200 kPa, 300 kPa, and 400 kPa normal pressures based on the American Society for Testing Materials (ASTM) standards (ASTM D3080).…”

Section: Laboratory Testing Of Water Stability Of Sand Treated With Pumentioning

confidence: 99%

Improvement of Water Stability of Sand Admixed with Water-Soluble Organic Polymer

Bai

Liu

et al. 2020

International Journal of Polymer Science

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Weak water stability of soil is one of the prime causes of soil erosion and slope damage. To understand the improvement on the water stability of sand by a soluble organic polymer (polyurethane, PU), we have conducted a series of water-stability and turbidity tests to evaluate the effects of different polymer content, densities, and immersion times. The mechanism of the improvements is investigated based on scanning electron and digital microscopes. Our results reveal that the polymer can effectively improve the water stability of sand, where the water-stability coefficient enhanced from zero to 100. The turbidity of the water after oscillation was determined, and its value reduced from 84.5 to 10 and kept stable, which further proved the PU improvement on the water stability of sand. The results can be considered as the reference for construction and management of riverbanks and drainage ditches.

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Laboratory Tests on Effectiveness of Environment-Friendly Organic Polymer on Physical Properties of Sand

Cited by 6 publications

References 19 publications

Unconfined Compressive Strength of Aqueous Polymer-Modified Saline Soil

Unconfined Compressive Strength of Aqueous Polymer-Modified Saline Soil

Deciphering the Geological Origins and Soil Properties of Loess-Like Silty Clay in the Yellow River's Middle and Lower Basins

Improvement of Water Stability of Sand Admixed with Water-Soluble Organic Polymer

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