I want to know about the zero voids line in Procter Density test and its application and advantages. Any one please guide me

[Fakhr Rizvi]

I want to know about the zero voids line in Procter Density test and its application and advantages. Any one please guide me

 

[HockeyPuck]

Fakhr Do you have a specific issue or problem that you are working on that has you looking into how the zero voids line is used? ​

As I'm sure you are aware, in a typical moisture-density relationship curve, we're looking for the optimum moisture content of the material where we can achieve its maximum density. Since the "zero voids" is theoretical, there isn't any real practical application of it, but you can use it as a gauge of how "consolodatable" your material is. The closer you max density/optimum moisture is to the zero voids line, the tighter your aggregate matrix is. The further away you are from the zero voids line you are, theoretically, you need more moisture to fill-in the voids at a given density to achieve zero voids, so therefore, your aggregate matrix has a larger void ratio. Does that help?​

Figure courtesy of:

https://idot.illinois.gov/Assets/uploads/files/Doing-Business/Manuals-Guides-&-Handbooks/Highways/Materials/Soils/S-33%20course%20reference%20manual.pdf