KTA-Tator, Inc. gratefully acknowledges SSPC for their permission to post the following papers presented at past PACE conferences.
“The Hal Adams Bridge: A Challenging Repainting Project on a Unique Florida Bridge” (PDF 867Kb) The Hal Adams Bridge is the only suspension bridge in the state of Florida. During the 2001 routine bridge inspection the bridge was identified as a candidate to be repainted. The authors Don Buwalda, Stephen Haney, and Greg Richards participated in the assessment, plan development, and project execution. This paper identifies areas that made the Hal Adams Bridge: “A Challenging Repainting Project on a Unique Florida Bridge.” A history of actual experiences and lessons learned will be presented from the point of view of the owner and third party inspection firms.
Don Buwalda – District 2, Florida DOT
Stephen Haney – JEAces, Inc.
Greg Richards – Area Manager, South
“Practical Considerations for the Life Cycle Evaluation of Zinc-Rich Coatings, Galvanized Steel and Thermal Sprayed Metals for Industrial Structures in Moderate Environmental Exposures” (PDF 224Kb) This paper provides an objective review of the life cycle costs of zinc-rich coating systems used in moderate industrial exposure environments. The coating systems include conventional inorganic/organic coatings, galvanizing, and thermal sprayed metal coatings (metallizing). Service life and installation cost data from previous studies is used to calculate the life cycle costs over a specified design life of an industrial structure. The life cycle costs are based on a suggested maintenance painting sequence that is outlined. A review of the costs for both shop and field coating application are discussed.
Jayson L. Helsel, P.E. – Senior Coatings Consultant
“Avoiding Problems With Coating Wood: A Review of Substrate Condition and Preparation, Moisture Issues and Coating Selection” (PDF 134Kb) This paper provides a review of key items to consider in coating wood. The most important considerations are ensuring a sound wood substrate surface, elimination of moisture as a problem, adequate surface preparation, and the proper choice of coatings. Coatings for wood can be categorized as film-forming or penetrating finishes. This paper expands on a recent related article published in the Journal of Architectural Coatings.
Jayson L. Helsel, P.E. – KTA-Tator, Inc.
“Variables That Affect Calcium Moisture Chloride Testing” (PDF 78Kb) The calcium chloride moisture vapor transmission test has steadily gained acceptance in the floor coating industry. This paper discusses variables that affect the results of moisture vapor transmission testing, and presents the results of testing designed to measure the affects of certain environmental parameters on the results of calcium chloride moisture vapor transmission testing.
Rick Huntley – Manager, Consulting Services
“Specifications and MasterFormat™ 2004” (PDF 182Kb) This paper will describe the fundamentals of MasterFormat™ 2004 and how its use can simplify the specification writing process. MasterFormat™ 2004 is jointly produced by the Construction Specifications Institute (CSI), and Construction Specifications Canada (CSC). Contractors, Owners and Specifiers can all benefit from the use of these guiding principals of specification development, especially when surface preparation, hazardous remediation, and coatings and linings are part of a larger overall scope of work. The coatings (sub) contractor can benefit by knowing how to find all pertinent data so that bids can be prepared properly. The owner can benefit by having a clearly organized specification. The specifier can benefit, as the logical format for organizing large specifications will result in less of a chance for conflicting information. MasterFormat is becoming the standard of care for the preparation of specifications.
Mike MeLampy – formerly with KTA-Tator, Inc.
“Properties of Air Barrier Materials” (PDF 909Kb) This paper will describe the fundamental properties of many of the air barrier materials available for environmental separation and air tightening of buildings. It will discuss the basic requirements for an air barrier; however, there are many different air barriers materials available, and many of these materials can provide other needed properties including vapor, moisture, and thermal barriers. Each material may be fabricated to provide the needed properties to accomplish one or several of these functions. Specific material properties must be developed during manufacturing or application at specific thicknesses to allow the material to perform. The paper will discuss the application of these materials, and how their placement within the wall is effected by their intended function(s), and the expected exterior and interior environmental conditions to which they may be exposed during and after construction.
Mike MeLampy – formerly with KTA-Tator, Inc.
“Cure Temperature Effects on Standard Cure and Low Temperature Cure Epoxies” (PDF 163Kb) This paper examines the effect that curing temperature has on the physical characteristics and performance of standard cure polyamide epoxies as compared low temperature cure epoxies. The purpose for this paper is threefold: FIRST, to determine if the low temperature curing epoxies are viable substitutes for the standard cure epoxies. SECOND, to determine if curing temperature can adversely affect the cure of epoxy coatings, thereby compromising corrosion protection. THIRD, to determine if a product from one manufacturer is an acceptable substitute for a similar product from another manufacturer?
David S. Leyland – formerly with KTA-Tator, Inc.
Cindy O’Malley – Manager, Laboratory Services
“Factors Influencing Anchor Profile” (PDF 69Kb) Anchor profile achieved during field blast cleaning operations is often found to be deeper than expected, even when available information suggests the size of the abrasive selected was appropriate. Three parameters long identified as influencing anchor profile depth were evaluated under laboratory conditions. This paper discusses the results obtained by changing blast nozzle pressure, angle of attack (incidence) and stand-off distance on the anchor profile achieved when blast cleaning with steel grit. Anchor profiles obtained from preliminary field data are also briefly described.
Ken Barnett, PE – Texas Department of Transportation
Richard A. Burgess – Senior Coatings Consultant