Difference between revisions of "Aggregates"
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==Reservoir Stone== | ==Reservoir Stone== | ||
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[[File:Particle void ratio.png|thumb|The highest void ratio is found in uniformly graded aggregate, as there are no smaller particles to occupy the inter-particle pores.]] | [[File:Particle void ratio.png|thumb|The highest void ratio is found in uniformly graded aggregate, as there are no smaller particles to occupy the inter-particle pores.]] | ||
[[File:Particle permeability.png|thumb|Higher permeability is found in larger, angular, uniformly graded aggregate. This is due to larger pore sizes and lower tortuosity.]] | [[File:Particle permeability.png|thumb|Higher permeability is found in larger, angular, uniformly graded aggregate. This is due to larger pore sizes and lower tortuosity.]] | ||
Revision as of 17:42, 23 January 2018
Reservoir Stone[edit]
The important characteristics of the stone within the reservoir or underdrain are the lack of fines, the void ratio and (to a lesser extent) the permeability. Porosity and permeability are directly influenced by the size, gradation and angularity of the particles [1]
- ↑ Judge, Aaron, "Measurement of the Hydraulic Conductivity of Gravels Using a Laboratory Permeameter and Silty Sands Using Field Testing with Observation Wells" (2013). Dissertations. 746. http://scholarworks.umass.edu/open_access_dissertations/746