Study on the impact of a biopolymer-fiber combination on soil reinforcement

Gu, Jiayu; Cai, Xin; Chen, Chuansheng

doi:10.56028/aetr.3.1.65

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…Fatehi et al [52] also studied the effect of the biopolymer ratio on soil strength, using sodium alginate and AGAR to improve a kaolinite-sand mixture, and found that the optimal biopolymer content was in the range of 0.5-1% (relative to the soil weight). Gu et al [53] concluded through direct shear tests on cellulose-improved soil that with the increase in the cellulose content, the shear strength of the soil first increased and then decreased, reaching a peak when the cellulose content was 0.5%.…”

Section: Effects Of Types and Ratios Of Biopolymers On The Mechanical...mentioning

confidence: 99%

A Review on Soils Treated with Biopolymers Based on Unsaturated Soil Theory

Zhang,

Liu

2023

Polymers

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Adding different materials to soil can improve its engineering properties, but traditional materials such as cement, lime, fly ash, etc., have caused pollution to the environment. Recently, biopolymers have shown many advantages, such as economy and environmental protection, which make them applicable to geotechnical engineering. This study summarizes the effects of biopolymers on soil’s engineering properties and the main directions of current research. Firstly, the advantages and disadvantages of a variety of widely used biopolymer materials and their effects on the specific engineering characteristics of soil (i.e., water retention characteristics, strength characteristics, permeability characteristics, microstructure) are introduced, as well as the source, viscosity, pH, and cost of these biopolymers. Then, based on the theory of unsaturated soil, the current research progress on the water retention characteristics of improved soil is summarized. The key factors affecting the strength of biopolymer-treated soil are introduced. Due to the actual environmental conditions, such as rainfall, the permeability and durability of biopolymer-treated soil are also worthy of attention. In summary, it is necessary to study the variation laws of the engineering properties of biopolymer-treated soil in the full suction range, and to predict such laws reasonably. The relevant results are conducive to the safer and more scientific application of biopolymers in geotechnical engineering practice.

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Section: Effects Of Types and Ratios Of Biopolymers On The Mechanical...mentioning

confidence: 99%

A Review on Soils Treated with Biopolymers Based on Unsaturated Soil Theory

Zhang,

Liu

2023

Polymers

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“…However, using cement for the purposes of soil reinforcement reduces the workability and durability of soil. In addition, it also adds detrimental effects, such as undegradable toxicity to the environmental conditions [ 8 , 9 , 10 ]. Moreover, the production of cement contributes to a large amount of greenhouse gas which, in turn, causes global warming.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Nano-SiO2 on Different Types of Soils: A Multi-Scale Study

Cai

Wang

et al. 2022

IJERPH

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A rapid growth in the population leads to a large increase in engineering construction. This means there is an inevitability in regard to building on problematic soils. Soil reinforcement becomes an important subject due to the fact that it is a concern for engineers and scientists. With the development of nanotechnology, more and more nanomaterials are being introduced within the practice of soil reinforcement engineering. In this study, the reinforcing effect of novel nanomaterial nano-silica (SiO2) applied to different kinds of soils was systematically studied. The nano-SiO2-reinforced soil possessed lower final water evaporation loss, and evaporation rates. The nano-SiO2 increased the shear strength of clayey soil and sandy soil under both cured and uncured conditions, but the reinforcing effect on clayey soil was more obvious. The addition of nano-SiO2 promotes the friction angle and cohesion of clayey soil; further, it also increases the cohesion of sandy soil. The unconfined compressive strength of clayey soil was enhanced by nano-SiO2, meanwhile, the nano-SiO2-reinforced soil possessed greater brittleness. The microstructure of nano-SiO2-reinforced soil is shown via SEM analysis, and the results of X-ray diffraction (XRD) tests show that there are no new mineral components generated during the reinforcing process. It was also found that nano-SiO2 possessed little influence on the soil pH value. Adding nano-SiO2 will not damage the original chemical environment of the soil. The microstructure of nano-SiO2-reinforced soil was observed to prove the results above. In general, nano-SiO2 is an excellent soil additive that can improve the mechanical properties of both clayey soil and sandy soil effectively. This research provides more ideas and directions for the purposes of selecting soil reinforcement materials.

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Study on the impact of a biopolymer-fiber combination on soil reinforcement

Cited by 2 publications

References 23 publications

A Review on Soils Treated with Biopolymers Based on Unsaturated Soil Theory

A Review on Soils Treated with Biopolymers Based on Unsaturated Soil Theory

Evaluating the Effect of Nano-SiO2 on Different Types of Soils: A Multi-Scale Study

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