1. Andrea Hansen Jessi Meyer Matt Drew
MCI Lab & Field Testing
Andrea Hansen
Jessi Meyer
Matt Drew

2. Agenda Lab Testing ASTM G109 Modified ASTM G109 (Cracked Beam Test) GC
XPS
Field Testing
Wet Mix Testing
Alkalinity
QAC
XPS
GalvaPulse (others)
Fugitive Dye Option

3. ASTM G109
Standard test method for determining the effects of chemical admixtures on the corrosion of embedded steel reinforcement in concrete exposed to chloride environments.

5. Cracked Beam Testing Modified ASTM G109
Includes crack as part of initial test set up
More true to “real life”
More aggressive/faster test method

7. Gas Chromatography (GC)
A separation technique carried out in a packed column.
Each peak on the recorder signifies a certain chemical.

8. Gas Chromatography (GC)

9. X-Ray Photoelectron Spectroscopy
Performed on:
MCI 2020
MCI 2020 M
MCI 2022
MCI 2021
Shows MCI actually absorbed onto steel reinforcement
Confirmed ability of MCI to displace chlorides.

11. MCI Slides

13. XPS analysis after 450 days, Mass Concentration %
Sample
Etch Time
(seconds)
Fe 2p
O 1s
C 1s
N 1s
Cl 2p
Ca 2p
Si 2p
Untreated
6.27
42.71
30.67
0.19
1.07
14.19
4.97
120
13.60
39.43
23.08
0.14
1.06
17.59
5.19
240
14.65
38.77
22.35
0.11
1.01
18.18
5.03
Inhibitor A
2.30
42.22
29.90
1.16
0.95
17.28
6.26
2.53
43.01
25.17
1.12
0.93
20.14
7.18
2.56
43.85
21.95
1.05
1.40
22.19
7.09
Inhibitor B
2.02
40.20
38.55
1.32
0.87
11.54
5.53
2.22
41.74
32.13
1.29
0.86
15.41
6.42
2.82
43.61
28.99
1.15
0.83
15.92
6.68

14. Detection of NS Admixtures in Wet Concrete
HACH Silica Test Kit
Model SI-5, Ranges 0-40 and 0-800mg/L
“Wet samples” of concrete
Control
MCI-2005 NS or MCI-2006 NS

15. Gecor 6 - James Instruments
Measures RH, temp, HCP, and concrete resistivity
Non-destructive polarization technique
100 readings can be stored at a time
Weighs 9 pounds
Photo from James Instruments Inc Website

16. GalvaPulse - Germann Instruments
Linear Polarization Resistance
Half Cell Potentials
Smaller and faster than Gecor 6

17. Galva Pulse
Photo from Galva Pulse Manual

18. Corrosion rates by Thomas Frolund, 2002 (with GalvaPulse instrument)
Current,
µA/cm2
Rate,
µm/year
Level
Time to Visible
Deterioration
< 0.5
< 5.8
Passive
N/A
0.5 to 5
5.8 to 58
Low
> 10 years
5 to 15
58 to 174
Moderate
3 to 10 years
> 15
>174
High
< 2 years
Corrosion rates by Thomas Frolund, 2002
(with GalvaPulse instrument)
Chart from GalvaPulse Manual

19. LPR Corrator Probes - Rohrback Cosasco Systems
Linear Polarization Resistance
Electrical Resisitivity
Temperature sensor
Photo from Corrator Website

20. Model 800 Monitoring Devices
Monitor via small test instruments or remote data collection
More Automated CorrData Instruments
Photos from Corrator Website

21. Humidity Testing ASTM-F-1869 ASTM-F-2170 ASTM-D-4263
Photo from James Instruments Website

22. Depth of Carbonation Deep Purple Indicator, German Instruments, Inc.
Rainbow Indicator, Germann Instruments, Inc
Photos from German Instruments Website

23. Depth of Carbonation James Instruments, Inc. Carbo Detect ASR Detect
Photo taken from German Instruments Website

24. Sample Preparation

25. Alkalinity HACH Alkalinity Test Model AL-AP MG-L 5-400 mg/L
Catalog #
Alkalinity Treated > Alkalinity Control

26. QAC Test
EM Quant Test Strips
0-500 mg/l
Cat. #

27. Equipment & Test Firms NDT Equipment Germann Instruments
James Instruments
Durham Geo Slope Indicator
Elcometer Instruments
Humboldt Manufacturing
Test Firms
American Engineering & Testing, MN
H.C. Nutting, OH
CTL, IL, MD, NH
WJE, 20 Offices