What is the effect of fines on a mixture behavior?
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The effect of fines on mixture behavior varies depending on the specific characteristics of the mixture. In the case of gravelly soils, fines content has a noticeable impact on soil dilatancy, the rate of pore pressure dissipation during and after shaking, damping, volumetric strains, and soil fabric after shaking . For binary granular soil mixtures, fines content and particle size ratio significantly influence the stress-strain response, critical state behavior, maximum dilation angle, peak friction angle, and stress-dilatancy relation . In sand-clay mixtures, fines content affects the angle of internal friction, with an increase in shear strength up to a transitional fines content, beyond which a decrement occurs . In ternary formulations for drug dispersion, fines can improve mixing by reducing agglomerate breakage and increasing detachment forces, but an excess of cohesive fines or larger fines can lead to poor mixing . For binary mixtures of prolate ellipsoids, fines content affects the mechanical behavior, with a unified critical state line identified using the intergranular void ratio .
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10 Citations | The effect of fines on a sand-clay mixture is that the shear strength initially increases with increasing fines content until it reaches a transitional fines content of 10%, after which the shear strength decreases. |
2 Citations | The effect of fines on the mixture behavior is examined in the paper. The mechanical behavior of the binary mixture is studied at both peak and critical states, and it is found that the fines content affects the behavior of the mixture. |
| The effect of fines on a mixture behavior is that it decreases agglomerate breakage and leads to poor mixing. | |
| The effect of fines on a mixture's behavior includes influencing the stress-strain response, critical state void ratio, critical state friction angle, maximum dilation angle, peak friction angle, and stress-dilatancy relation. | |
| The fines content in the gravelly soil mixture has a noticeable impact on soil dilatancy, the rate of pore pressure dissipation during and after shaking, damping, volumetric strains, and soil fabric after shaking. |
Related Questions
What is the effect of fines on undrained shear behavior?5 answersThe addition of fines to sand can have varying effects on undrained shear behavior. In the case of carbonate sand, the undrained shear strength initially decreases with the addition of silt content up to a certain percentage, but then increases dramatically at higher silt contents. For clean sands, the steady-state strength decreases with increasing mean particle size or particle-size range, but the steady-state strength of nonplastic fines mixes is lowest when the fines content is about 30%. Low-plasticity silts exhibit a transition from liquefaction to cyclic softening over a narrow range of plasticity index, and the effects of pore water pressure during cyclic loading on post-cyclic reconsolidation strains and post-cyclic shear strength degradation are explored. The behavior of clean sands with the presence of fines is also studied, showing amplified contractive and dilative phases in undrained conditions, and a decrease in critical undrained shear strength with increasing fines content.
What is the effect of cohesive and non-cohesive fines on the shear behavior of soils?5 answersThe presence of cohesive and non-cohesive fines in soils has a significant effect on their shear behavior. The addition of non-plastic fines to carbonate sand reduces its undrained shear strength, with a decrease up to 20% silt content and a dramatic increase at 30% silt content. In the case of dredged sediments, the compressibility and undrained shear strength of the material are influenced by the content of sand, organic matter, and the consolidation process. The behavior of cohesive-frictional soils, such as clayey, silty, and sandy soils, is affected by soil temperature, with an increase in temperature leading to a decrease in shear modulus and damping ratio. The shear modulus and damping ratio of silty sands are also influenced by the content of plastic fines, with an initial decrease and subsequent increase in shear modulus and an increase in damping ratio with increasing fines content. Calcareous sand's shear strength is affected by the content of fines, with an increase in fines content leading to a decrease in peak strength and an increase in internal friction angle.
What are the effects of fines in ash on the performance of solid fuel boilers?5 answersThe presence of fines in ash can have adverse effects on the performance of solid fuel boilers. These effects include slagging, ash sintering, ash fusion, agglomeration, and corrosion, which can reduce the electric generation capacity and increase maintenance costs for cleaning deposits. Additionally, high amounts of unburned carbon (UC) in the ash can decrease boiler efficiency and reduce the utilization of ash in cement industries. The choice of combustion technology for solid fuel boilers is also influenced by the behavior of ash, including its chemical composition, melting temperatures, and tendency to slagging/fouling heating surfaces. Furthermore, the physical and chemical structures of pulverized coal with different ash contents can affect the combustion characteristics of coal. To mitigate ash deposition, surface treatments using thermal spraying techniques have been proposed, which have shown good performance in reducing adhesion forces and preventing ash deposition in multi-fuel fired boilers.
What is the impact of iron ore fines on the iron and steel industry?5 answersIron ore fines have a significant impact on the iron and steel industry. The generation of fines and ultra-fines has been steadily increasing due to mechanized mining activity and the soft and friable nature of the ores. These fines and ultra-fines can be efficiently used for the production of iron and steel, either directly or after beneficiation. However, sintering, which is commonly used in the industry, has limitations in accepting ultra-fine materials. Therefore, suitable technologies need to be developed for the utilization and recycling of these fines. The size distribution of iron ore fines also plays a crucial role in the sintering process and the quality of the sinter produced. Sinter productivity and strength can be improved by controlling the iron ore mean particle size, which affects the flame front speed and bed permeability. Additionally, the use of iron ore fines in granulation processes can improve the mixing degree of raw materials and the strength of the granules.
How do mixtures of cements affect the properties of the final product?5 answersMixtures of cements have a significant impact on the properties of the final product. Blended slag-limestone cements, for example, have been found to have positive effects on the properties of mortars and concrete, such as rheological properties, heat of hydration, and compressive strength. Similarly, the use of mineral admixtures in self-compacting concrete (SCC) with recycled aggregate (RA) has shown improved fresh properties without segregation, even at high replacement levels. Optimizing the cement content in a concrete mixture is crucial for producing an efficient mixture that meets project requirements, as increased cement content can have adverse effects on properties such as durability, strength, heat generation, shrinkage, and workability. Additionally, the type of cement used, especially blended cements, can significantly affect concrete resistance to chloride ion penetration and overall durability in aggressive environments. Blended cements, such as those prepared with fly ash and clean coal ash, have also been found to enhance strength development, resistance to sulfate attack and alkali silica reaction, and reduce deterioration due to freezing and thawing.
Do fines reduce chance for recidivism?5 answersFines do not consistently reduce the chance for recidivism among offenders. Studies have found little evidence to suggest that higher fines have a deterrent effect on driving offenders, with individual attributes of offenders being more consistent predictors of reoffending. One study specifically focused on the effect of higher speed fines on recidivism and found that while light offenders did reduce their speed and showed a reducing effect on recidivism, heavy offenders did not show the same effects. Another study examined the impact of fines on recidivism rates in the Federal Republic of Germany and found no evidence to support the concern that the abolition of short prison terms in favor of fines would lead to increasing rates of recidivism. However, a study conducted in Florida found that drivers who received a lenient fine were more likely to receive an additional speeding ticket and be involved in a car accident in the following year.