Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

Proof of Concept for an Adhesion Measurement Device to Predict Overcoating Failures in the Field

Proof of Concept for an Adhesion Measurement Device to Predict Overcoating Failures in the Field
Available for download

Overcoating an existing bridge coating system can be an economical solution to maintain bridges.  Overcoating eliminates the costs for removal of old, often hazardous coating systems that were possibly applied years ago.  However, prior to the overcoating process, it is necessary to establish that the existing coating is well adhered to the substrate.  Coatings with inadequate adhesion must be removed.  Unfortunately, though some standard test methods are available, the determination of a well-adhered coating is not an exact science.   

Product Number: 41205-175-SG
Author: Moavin Islam, John Repp, James A. Ellor
Publication Date: 2005
Industries: Highways & Bridges , Coatings
$0.00
$20.00
$20.00

Overcoating an existing bridge coating system can be an economical solution to maintain bridges.  Overcoating eliminates the costs for removal of old, often hazardous coating systems that were possibly applied years ago.  However, prior to the overcoating process, it is necessary to establish that the existing coating is well adhered to the substrate.  Coatings with inadequate adhesion must be removed. Unfortunately, though some standard test methods are available, the determination of a well-adhered coating is not an exact science. It is well known that during the curing process some overcoat systems can develop a significant level of shear stress (i.e., stress acting tangential to the coating film) amounting to as much as 1300 psi. This stress, in combination with stresses due to structure vibration and thermal stresses can lead to the disbondment of the existing coating on the bridge structure.  Indeed, such a phenomenon is observed in practice and often within 1 to 2 years of completion of the overcoating project.

Overcoating an existing bridge coating system can be an economical solution to maintain bridges.  Overcoating eliminates the costs for removal of old, often hazardous coating systems that were possibly applied years ago.  However, prior to the overcoating process, it is necessary to establish that the existing coating is well adhered to the substrate.  Coatings with inadequate adhesion must be removed. Unfortunately, though some standard test methods are available, the determination of a well-adhered coating is not an exact science. It is well known that during the curing process some overcoat systems can develop a significant level of shear stress (i.e., stress acting tangential to the coating film) amounting to as much as 1300 psi. This stress, in combination with stresses due to structure vibration and thermal stresses can lead to the disbondment of the existing coating on the bridge structure.  Indeed, such a phenomenon is observed in practice and often within 1 to 2 years of completion of the overcoating project.

Product tags
Also Purchased
Preparing an Inspection Plan for Bridge Maintenance Painting
Available for download

Preparing an Inspection Plan for Bridge Maintenance Painting

Product Number: 41211-596-SG
Author: William D. Corbett
Publication Date: 2011
$20.00

A bridge coatings specification can be a complex and sometimes confusing document to navigate through. Yet it is regarded as the rulebook for quality control and quality assurance personnel responsible for inspecting the quality of work. An inspection plan is a tool that can make the process of understanding the inspection checkpoints invoked by a bridge coating specification more streamlined and can be a key communication tool for contractor and inspection personnel. 
Picture for 51318-11288-Bridge Coating Operation and Maintenance Planning
Available for download

51318-11288-Bridge Coating Operation and Maintenance Planning

Product Number: 51318-11288-SG
Author: Russell Draper / Dr. Mekdam Nima / Frances Wee
Publication Date: 2018
$20.00

This paper describes a bridge coating operation and maintenance manual that was developed for the City of Vancouver which operates and maintains an inventory of 33 bridges with coated steel elements.
Performance of Two-Coat Zinc Rapid Deployment Systems on Steel Surfaces
Available for download

Performance of Two-Coat Zinc Rapid Deployment Systems on Steel Surfaces

Product Number: 41205-160-SG
Author: Shuang-Ling Chong
Publication Date: 2005
$20.00

Two-Coat zinc-rich primed systems with a fast-dry topcoat were evaluated for their potential to replace the conventional three-coat zincrich/epoxy/polyurethane bridge coating systems for rapid field deployment.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support