Look Who it Was Random video

Super Air Meter 11/16

2,907 views · Published 26 November 2016 · 59:36 · Indexed 4 October 2026

Channel: Tyler Ley · 2016 · Science & Technology

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This presentation gives an update on the development and implementation of the Super Air Meter (SAM).  The SAM is a new AASHTO test method (AASHTO TP118) that can measure the bubble size and spacing within concrete before it has hardened.  This can help improve the freeze thaw durability of concrete and extend the service life.  The SAM was developed at Oklahoma State University and is used in four countries and 35 states in the US.

You can find more information at www.superairmeter.com

You can find the slides at this link:
https://www.dropbox.com/s/vo3mv4m4rqvuxam/youtube%20presentation.pdf?dl=0



Index of the video:
00:52 Big picture
02:05 Introduction
04:33 What do you want in air void system?
08:55 What causes large bubbes?
10:08 How do you measure your bubbles?
14:18 Air content vs spacing factor
16:06 Air content vs freeze thaw durability
20:16 The Super Air Meter (SAM)
22:04 SAM test
26:14 Why is the SAM number useful?
26:51 SAM number vs spacing factor
30:23 SAM number vs freeze thaw durability
33:59 Why is this useful?
35:46 How do determine average void size in fresh concrete (Air content vs SAM number)
38:51 How does the SAM work?
43:32 Additional experiments
49:09 What is the variability of the method?
51:51 Who is using the SAM?
52:19 How do you specify the SAM?
55:04 What do I do if my SAM number is too high?
56:10 I need your help.
57:58 Back to the big picture
58:31 Conclusion

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