Silty soils

Miralles-Mellado I, Canton Y, Sole-Benet A. Two-dimensional porosity of crusted silty soils indicators of soil quality in semiarid rangelands Soil Sci. Soc. Am. J. 2011 75 1330-1342. 

Silty soil This falls somewhere between clay and sand. It feels silky—almost soapy—and leaves your fingers dirty. It is fertile, but compacts easily and may be heavy to work. 

Distributing your weight When ground is wet, working from a board will spread your weight evenly and protect the soil structure, especially in clay or silty soil. 

Upflow washing is an in situtechnology being developed for the treatment of sandy or silty soils contaminated with organic or metal contaminants. The technology uses an upward fluidizing... 

Desorption kinetic studies were conducted with freshly contaminated soils and aged soils (i.e., soils that were allowed to have extended contact time of 3 months and 5 months during the sorption step). Three levels of contamination were used. To illustrate here, soil desorption kinetics data for 1,3-DCB with silty soil from the PPI site was plotted with the fraction of the contaminant released as a function of time in Fig. 5. Again, the results for other chemicals are not discussed here as the findings are very similar. As shown in Fig. 5, a substantial portion of the contaminant is released within the first 20-30 h, followed by a very slow release over a very long period. This slow release was observed over the entire duration of the experiment (100-450 h). Approximately 60% of 1,3-DCB was desorbed in the first 24 h for freshly contaminated soils. 

Fig. 6 Desorption isotherm 1,3-DCB using silty soil from the PPI sited...

Soil. Microbial and photochemical degradation play a major role in degradation t DT50 in silty soil 60 days... 

SOILS 5IL3S dlatDoaceaus floe sandy or silty soils, elastic silts to 10 roller... 

Semi-pervious soil deposits generally silty soils Flyash A-5 High Fair... 

Cabral, A. R., and Lefebvre, G. (1998). Use of sequential extraction in the study of heavy metal retention by silty soils. Water Air Soil Pollut. 102, 329-344. 

Mench, M. (1994). Evaluation of metal mobility, plant availability and immobilization by chemical agents in a limed-silty soil. Environ. Pollut. 86, 279-286. 

Sandy-silty soils 0.05-0.27 equiv m 2 yr -1 7-40 mmka-1 Cronan (1985)... 

Table 2 shows the result of environments analysis for the testing cell wherein the severest general corrosion rate as 1,87x10 m/Ms was reproduced in the laboratory in a sulfate enriched silty soil of 1400 wt.ppm of SO4 . Appreciably low pH and decrease of FeS during test period would lend a strong support to an interpretation that sulfuric acid generated as a result of proliferation of lOB and SOB was responsible for such an observed accelerated corrosion rate. 

Silty soil (carbonates 0.4%) Production of electronic devices L... 

Puesch, A. A. (1982), Basic data for the design of tension piles in silty soils. Proceedings of the 3rd BOSS Conference, Massachusetts, 1, pp. 147-157. 

Effect of Silt Content. Silt content has a significant influence on c. At the same confining stress, the c values are smaller for silty soils by more than one to two orders of magnitude compared to sand (Figure 8). Figure 9 illustrates this more clearly. It shows the change in normalized coefficient of consolidation (c )/(c )q for Ottawa sand silt mixes, where, (c ) is the coefficient of consolidation value for clean Ottawa sand, and c =coefificient of consolidation of Ottawa sand-silt... 

Andrews, D. C. A., Martin, G. R. (2000). Criteria for liquefaction of silty soils. In Proceedings of the 12th WCEE 2000 Conferance, Auckland, NZ. 

Kanagalingam, T, Thevanayagam, S. (2006). Energy dissipation and liquefaction assessment in sands and silty soils. ASCE. In D. J. DeGroot et al. (Eds.), Geotechnical Engineering in the Information Age, 10-7844-0803-3. 

Nashed, R., Thevanayagam, S., Martin, G. R. (2009). Densification and Liquefaction Mitigation of Saturated Silty Soils by D5mamic Compaction -Design. Ground Improvement Journal, Institute of Civil Engineers, UK. 

Shenthan, T. (2001). Factors affecting liquefaction mitigation in silty soils using stone columns. MS Thesis, Department of Civi, Structural and Environ. Eng., University at Buffalo, NY, USA. 

Thevanayagam, S. (2000). Liquefaction potential and undrained fragility of silty soils. In the Proceedings of the 12 World Conf. Earthq. Eng., New Zealand. 

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