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A recent technology has been introduced where improved mechanical durability and aesthetically pleasing finish is achieved using pre-manufactured intumescent fire protection. This paper will detail how the pre-manufactured intumescent technology will provide an attractive alternative to spray application to achieve up to 2-hour rating with simple installation techniques that result in ultra smooth, no orange peel finish. This alternative process can be used on new construction, maintenance and building retrofits with little disruption on the job site.
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The above ground storage tanks in the refinery are experiencing bottom plate underside (soil) corrosion at a high rate of 1mm/year. Results: Failure of 4 tanks within a period of 9 years. Observations, details of the CP survey, tests, results and forward path taken up.
The refining industry has made significant strides in technology and materials science, resulting in increased efficiency and reliability of various refinery units. Despite these advancements, unexpected failures persist, leading to costly downtime and potential safety hazards. A recent instance of premature failure in a newly commissioned Naphtha Hydrotreating unit (NHT) highlights the challenges that still exist in maintaining the integrity of critical infrastructure.
PREPARATION FOR SSPC QP3 SHOP CERTIFICATION
Because process shutdowns are expensive, it is desirable to speed up the turn-around time when applying protective coating systems on concrete. Rapid installation of surfacing materials on concrete can be problematical due to inadequate surface preparation, residual moisture, low surface tensile strength, and poor compatibility between the concrete substrate repair materials and the protective coating system.
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.
All coating projects should be bid using plans and specifications tailored to the project. In this paper, we will examine the goals of the specifications, as well as some of the basic guidelines for their preparation and common language which should be included to ensure a clear presentation of the work to be performed. Also, we will describe the obligations of the design team that are implied by law in every contract.
The practice of lining concrete substrates has increased exponentially over the past thirty (30) years, most notably in the wastewater treatment industry. Environmental regulations, coupled with changes to treatment processes, have resulted in far more severe environments in which concrete can and will corrode.
Duplex systems, also known as painting over hot dip galvanized steel, are extremely effective corrosion protection systems. However, careful surface preparation techniques need to be used to alleviate potential coating failures. The age and characteristics of the galvanized coating should be used to determine what type of surface preparation is needed. Surface preparation should develop an anchor profile for the paint without removing the zinc coating.
This paper will offer general guidance regarding preservation by liquid applied coatings to the owners and operators of coastal and inland working vessels. The paper will discuss both new construction and maintenance painting and will offer suggested coating systems for the main areas of these vessels.