How the strength properties of gravel soils depend on the type and state of the sand filling the pores
Author: A. A. Vasil'eva, V. V. Mikheev, G. L. Lobanova | Size: 502 KB | Format:PDF | Quality:Unspecified | Publisher: Soil Mechanics and Foundation Engineering | Year: 1971 | pages: 5
Little information is available on the shear parameters of coarse detrital soils. Because these conrain
large fragments, it is very difficult to determine their shear resistances. Apparatus and methods (of
laboratory and field types) for investigation of coarse detrital soils have not yet been perfected. Construction
Specification SNiP II-B.I-62 states that the normative pressures on bases of coarse detrital soils
should depend on the type and state of the filler. But in determining the shear parameters of the pore fillers
of such soils we meet almost insuperable difficulties owing to the need to prepare the filler while conserving
the natural state of density and wetness.
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Hi colleagues,
ASTM journals are one the most trusty references, but access to them are highly limited.
I need some papers from these journals, and would be very grateful if anybody can share them.
1- A New Method for Evaluating the Risk of DEF
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Volume 26, Issue 2 (December 2004)
DOI: 10.1520/CCA11864
2- Crack Counts in Air-Entrained and Non-Air-Entrained Concrete Subjected to Accelerated and Fog-Room Curing
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Volume 16, Issue 2 (December 1994)
DOI: 10.1520/CCA10288J
3- A Very Early Strength Concrete for Highway Construction
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Volume 35, Issue 6 (November 2007)
DOI: 10.1520/JTE100888
4- Effects of Temperature, Chemical, and Mineral Admixtures on the Electrical Conductivity of Concrete
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Volume 5, Issue 5 (May 2008)
DOI: 10.1520/JAI101296
Thanks in advance.
Mod note
Always use Post Generator (PG) when making request.
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Brief note on the influence of shape and percentage of gravel on the shear strength of sand and gravel mixtures
Author: Saffet Yagiz | Size: 0.124 MB | Format:PDF | Quality:Original preprint | Publisher: Bulletin of Engineering Geology and the Environment, Volume 60, Issue 4 | Year: November 2001 | pages: 321-323
The paper records the influence of the shape and the percentage of gravel on the shear strength/frictional angle of sand and gravel mixtures using direct shear tests. The shear strength is mainly derived from the frictional forces developed due to sliding and interlock; they depend on the maximum particle size and shape, the uniformity coefficient, density and the effective normal stress. As the size of material in a mixture is variable, the shear strength also depends upon the ratio of the specimen diameter to the maximum particle size. In this study, two different shapes of limestone were used, angular and rounded, and the maximum gravel size was 6.3 mm in diameter. Air-dried samples were used in the tests. It is concluded that the shape and percentage of gravel have an important influence on the shear strength properties.
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