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

More documents

Recommendations

Info

ecomes available, MoDOT crews would be given the ability to remove chlorides prior to coating. This would greatly increase the coating performance, especially under joints. Evaluation Program – In order to ensure that maintenance forces are optimizing their coatings program, a paint inventory and condition evaluation program needs to be developed and incorporated into the TMS database. Basic data would be collected annually during the NBIS inspections. The data would then be indexed and used to create a work prioritization program for work by MoDOT forces over a defined period of time. Alternately, the use of such an approach could result in the decision that the work be scheduled for contracted maintenance forces. The requirements are yet to be determined, the inspection staff trained, the data collected, and the TMS database populated. An example of an evaluation and prioritization program is the “Model” Coating Condition Evaluation Program” developed by a Task Force member and included in Appendix G. Similarly, several coating suppliers have created evaluation programs that are available for use by MoDOT. It is anticipated that some bridges are in a condition that touch-up or overcoating are considered viable. Prior to any painting, the condition of existing coatings should be evaluated based on the custom-tailored MoDOT program guidelines to determine if the coating is an appropriate overcoat candidate. This evaluation may be made by an internal bridge inspection team (such as the deck survey team), the Bridge Maintenance Superintendent, or by outside sources. The testing should include, as a minimum, a detailed visual condition, coating adhesion, qualitative lead evaluation, and a dry film thickness assessment (see Appendix G, “A Model Coating Condition Evaluation Program”). Contract Maintenance Coatings Program Pre-Evaluation of Existing Coating System and Maintenance Painting Planning – In reviewing the practices of the contract maintenance coating program, the team determined the need to establish an evaluation and planning program. Proper evaluation of the existing coatings to determine the condition of the coating prior to application of new coatings permits MoDOT to determine the best outcome considering the existing conditions. The program, identical to that used for the internal coatings program, should utilize a life cycle cost analysis during the coating selection process. Appendix G provides an example of a “Model Coatings Evaluation Program.” Environmental Issues – One of the largest expenses incurred by MoDOT is the current specification regarding collection and disposal of wash water. These requirements should be reviewed in order to develop realistic achievable environmental requirements for the collection and disposal of wash water to make washing (or the higher pressure water jetting) viable for the contractors as a measure to remove chlorides prior to the application of the new coating. The 9
Kentucky Transportation Cabinet has conducted research on filtering technology for wash water. MoDOT needs to explore these filtering technologies by establishing pilot programs that are extensively monitored with random jobsite samples to ensure that they actually do what they claim concerning wash water collection, filtering, and disposal. Disposal of the wash water is controlled by regulations established by the Environmental Protection Agency (EPA) and the Missouri Department of Natural Resources (DNR). MoDOT should explore the formation of a joint task force with the EPA and DNR to explore and evaluate the options available concerning new ideas and technology for wash water collection, processing, and re-use / disposal. Contractor Certification – Quality of preparation and application of the surface coating system is critical to the life of the coating system. A method to ensure quality surface preparation and coating application would be to require, by specification, that coating contractors be certified by recognized Contractor Certification Programs by independent societies such as SSPC: The Society for Protective Coatings. Current MoDOT specifications do not define levels of quality during application of the coating, nor do they require contractor certification. Requiring contractors to be certified will increase the level of performance due to the need for the contractor to maintain its certification. In addition, the team recommends requiring certification for painting contractors, individual blast cleaning personnel, coating application personnel, and inspectors. SSPC has created programs detailed below that will fulfill all of MoDOT’s needs. Painting Contractor Certification Programs (PCCP) The SSPC Painting Contractor Certification Programs are based on consensus standards developed by a diverse committee of industry professionals. It is a nationally recognized independent contractor evaluation program, as well as a pre-qualification tool developed by SSPC for facility owners and others who hire industrial painting contractors. Each program reviews the industrial painting contractor's primary ability to provide quality work in accordance with applicable safety, health, and environmental compliance standards. The program is divided into the following categories: Qualification Procedure No. 1: “Field Application to Complex Industrial and Marine Structures” (QP 1) evaluates contractors who perform surface preparation and industrial coating application on steel structures in the field. Qualification Procedure No. 2: “Field Removal of Hazardous Coatings” (QP 2) is a supplement to QP 1 that evaluates the contractor's ability to perform industrial 10
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 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 40 and 41: Scott Milliken/DOR/NEBRLN 11/14/200
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
show all

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

Create successful ePaper yourself

Delete template?

Save as template?