Although VSI test is commonly known as static segregation evaluation method for self-compacting concrete, it is rarely expressed as dynamic segregation method in some studies. Can the both phenomenons (static and dynamic assessments) express with the test method.
Check NCHRP report 628, Page B18, section B-2-6. It touches on some recommended range for dynamic stability using VSI
https://books.google.com.om/books?id=RNNGTBXyz64C&printsec=frontcover#v=onepage&q&f=false
Static and dynamic segregation are different phenomena and cannot be measured with a single test. For static segregation I would suggest you consider ASTM C1610 Column technique and/or AASHTO PP-58 HVSI.
Thank you for your valuable suggestion Dr. Bryan Kenneth Marsh. I' m aware of those standards. I agree with your opinion. However, the both assertions (static and dynamic) are emphasized by some valuable studies printed in well-known journals. I want to correlate the standard method results (VSI) with our suggested dynamic method. But I' m not sure that the correlation will be reliable with regard to dynamic segregation.
You may be interested to hear that I investigated an example of severe static segregation where, in the worst case, coarse aggregate had sunk over 5m from the top of a 55m deep pile (not true self-compacting concrete but high flow concrete that consolidates under its own weight with no vibration). The site records showed no evidence of dynamic segregation problems through VSI in any of approx. 300 batches.
It is very interesting and benefical knowledge for my research area. Thank you Dr Bryan Kenneth Marsh for your sharing the valuable experince with me. I will take into account the site records in my study.
Best regards.
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