1. I-99 HPC Permeability Testing
Presented By
Geoffrey Kurgan
17 May 2002

2. Current Testing AASHTO T 277/ASTM C 1202 14 mixture designs
2 material sources
Fly Ash, GGBFS, PC, Silica Fume and multiple ternary mixes
Through 56- day test for all combinations
Normal curing temperature and conditions
Samples fabricated for one year tests

3. Current Testing- Test Setups
Two test setups allow numerous tests to run each day
Comparable results on either machine

6. Future Test Plans AASHTO T 277/ASTM C1202 AASHTO T 259
Accelerated Curing
AASHTO T 259
Modified Rapid Migration Test (RMT)
Pressure permeability

7. Test Plan

8. Test Plan- AASHTO T 277 Rapid chloride permeability test
Continue fabrication and testing of additional samples
Accelerated curing for 28- day test
7 day MC 23C + 21 day MC 38C
7, 28, 56, 90, 180, and 365 day tests

9. Test Plan- AASHTO T 259 Salt ponding test
3% NaCl solution ponded on top surface for 90 day intervals
0.5” slices taken at progressive depths to determine chloride concentration
Run for 180 days

10. Test Plan- Rapid Migration Test
Based on test developed in Sweden and modified at the University of Toronto
Silver nitrate solution used to highlight penetration depth
Seven measurements recorded for average
Chalmers Technical University

11. Test Plan- Pressure Permeability
Currently under construction
Chloride profile grinding
Depth penetration measurement using silver nitrate
Darcy’s Law utilized to yield permeability coefficient