An Evaluation of MoDOT's Current Coatings Programs Final ... - TSP2

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Scott Milliken/DOR/NEBRLN 11/14/2007 12:06 PM T o c c Dan Sharp/DOR/NEBRLN@NEBRLN, Jeff Handeland/DOR/NEBRLN@NEBRLN Gentlemen, Subject Fw: Survey of your state's coatings program and systems for both new & existing steel bridges. Could you provide me with an answer that I could respond to this with? Thank you, ----- Forwarded by Scott Milliken/DOR/NEBRLN on 11/14/2007 12:05 PM ----- Daniel.Davis@modot.mo.gov Scott 11/14/2007 11:20 AM To smillike@dor.state.ne.us c c Subject Survey of your state's coatings program and systems for both new & existing steel bridges. We are evaluating our current coatings program and systems used for our steel bridges, both new & existing structures. We are interested in learning what coatings program and systems your state uses for both new & existing steel bridges. How do you prioritize the structures for over-coating or recoating? How do you evaluate the steel bridge coatings used in your program? New structures: 1) What coating system(s) are used & how are they performing? Most of our new steel bridges are weathering steel which we do not paint. When we paint non-weathering steel we use a 3-coat zinc/epoxy/urethane system. Excellent. 2) What new technologies are you reviewing or trying (coatings, materials, inspection, etc.) Weathering steel Existing structures: 3) Do you use over-coating systems or paint removal and recoating? Full removal and replacement 37
4) Do you use internal personnel or contract the work? Let to contract 5) What coating system(s) are used & how are they performing? Zinc/epoxy/urethane. Excellent. 6) What new technologies are you reviewing or trying (coatings, materials, inspection, etc.)? None 7) What problems have you experienced with the new or existing coatings? Failure of calcium sulfonate coatings on an overcoating project. We thank you for your assistance and information. Have a good day! Daniel L. Davis. Fabrication Technician- Bridge Missouri Department of Transportation (573)751-3853 daniel.davis@modot.mo.gov 38
Page 1: An Evaluation of MoDOT’s Current
Page 4 and 5: Executive Summary In an on-going ef
Page 6 and 7: Background Information and Research
Page 8 and 9: From these analyses, the following
Page 10 and 11: 1. Low pressure water cleaning - pr
Page 12 and 13: ecomes available, MoDOT crews would
Page 14 and 15: hazardous paint removal in a field
Page 16 and 17: Chloride Mitigation - The performan
Page 18 and 19: would then both examine and agree t
Page 20 and 21: Certification of Painting Contracto
Page 22 and 23: MoDOT currently provides the option
Page 24 and 25: Pre-Bid and Annual Standard Meeting
Page 26 and 27: Name Organization Comments Kent Nel
Page 30 and 31: "Jeffrey Weiler" 11/14/2007 12:56
Page 32 and 33: "John Jones" 11/14/2007 03:54 PM T
Page 34 and 35: "Bryon D. Beck" 11/15/2007 06:14 A
Page 36 and 37: 5) What coating system(s) are used
Page 38 and 39: We use an Epoxy Paint System. It is
Page 42 and 43: "Dubois, Denis" 12/14/2007 06:48 A
Page 44 and 45: "Wehrle, Craig" 11/14/2007 12:26 P
Page 46 and 47: 11/15/2007 11:50 AM To cc Subject
Page 48 and 49: From: Wayne Seger [mailto:Wayne.Seg
Page 50 and 51: Numerous areas on structures recent
Page 52 and 53: I have been asked, as a Team member
Page 54 and 55: 7) What problems have you experienc
Page 56 and 57: Internal Coatings Program Current S
Page 58 and 59: Create an evaluation program and pr
Page 60 and 61: Program: Internal System: Calcium S
Page 62 and 63: 13.) No contractor certification pr
Page 64 and 65: Training for persons selecting proc
Page 66 and 67: term performance issues Program: Co
Page 68 and 69: New Construction Coatings Program C
Page 70 and 71: Recommend New Practices: Explore th
Page 72 and 73: Program: New Construction System: I
Page 74 and 75: Program: New Construction System: I
Page 76 and 77: KTA-TATOR Inspection Class Basic Co
Page 78 and 79: Level 2: Course, Course Exam and Ce
Page 80: Appendix E FHWA-RD-92-011 77
Page 85 and 86: U.S. Department of Transportation F
Page 87: National Surface Treatment Center 4
Page 96 and 97:
“MODEL” COATING CONDITION EVALU
Page 98 and 99:
Service Environment A general class
Page 100 and 101:
ADHESION RISK OF OVERCOATING DFT <
Page 102 and 103:
The importance of the deterioration
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An Evaluation of MoDOT's Current Coatings Programs Final ... - TSP2

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