11/28/13

Void ratio - Wikipedia, the free encyclopedia

Void ratio
From Wikipedia, the free encyclopedia

Void ratio, in ...
11/28/13

Void ratio - Wikipedia, the free encyclopedia

References
1. ^ Lambe, T. William & Robert V. Whitman. Soil Mecha...
Upcoming SlideShare
Loading in …5
×

Void ratio wikipedia, the free encyclopedia

1,138 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,138
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
2
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Void ratio wikipedia, the free encyclopedia

  1. 1. 11/28/13 Void ratio - Wikipedia, the free encyclopedia Void ratio From Wikipedia, the free encyclopedia Void ratio, in materials science, is related to porosity and defined as the ratio: and where is void ratio, is porosity, VV is the volume of void-space (such as fluids), VS is the volume of solids, and VT is the total or bulk volume. This figure is relevant in composites, in mining (particular with regard to the properties of tailings), and in soil science. In geotechnical engineering, it is considered as one of the state variables of soils and represented by the symbol e.[1] [2] Note that in geotechnical engineering, the symbol strength (soil) parameter. usually represents the angle of shearing resistance, a shear Because of this, the equation is usually written: and where is void ratio, is porosity, VV is the volume of void-space (air and water), VS is the volume of solids, and VT is the total or bulk volume.[3] Engineering applications Volume change tendency control. If void ratio is high (loose soils) voids in a soil skeleton tend to minimize under loading - adjacent particles contract. The opposite situation, i.e. when void ratio is relatively small (dense soils), indicates that the volume of the soil is vulnerable to increase under loading - particles dilate. Fluid conductivity control (ability of water movement through the soil). Loose soils show high conductivity, while dense soils are not so permeable. Particles movement. In a loose soil particles can move quite easily, whereas in a dense one finer particles cannot pass through the voids, which leads to clogging. en.wikipedia.org/wiki/Void_ratio 1/2
  2. 2. 11/28/13 Void ratio - Wikipedia, the free encyclopedia References 1. ^ Lambe, T. William & Robert V. Whitman. Soil Mechanics. Wiley, 1991; p. 29. ISBN 978-0-471-51192-2 2. ^ Santamarina, J. Carlos, Katherine A. Klein, & Moheb A. Fam. Soils and Waves: Particulate Materials Behavior, Characterization and Process Monitoring. Wiley, 2001; pp. 35-36 & 51-53. ISBN 978-0-471-49058-6 3. ^ Craig, R. F. Craig's Soil Mechanics. London: Spon, 2004, p.18. ISBN 0-203-49410-5. Retrieved from "http://en.wikipedia.org/w/index.php?title=Void_ratio&oldid=544590700" Categories: Materials science Soil mechanics Earth sciences Soil science Mining This page was last modified on 16 March 2013 at 08:52. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. en.wikipedia.org/wiki/Void_ratio 2/2

×