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Often when a polymer coating failure occurs, the concrete quality and integrity are questioned. Core samples removed from the concrete slab are examined using petrographic techniques to help determine the cause of the coating failure. The basics of the petrographic examination, the equipment used and what information it can provide are presented.
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Conductive and static dissipative floorings and coatings are designed to provide protection from electrical charges causing harm to work or products. This presentation is designed to familiarize you with the phenomenon of Static Electricity, how it is generated and its effects on industry. We will then discuss ways to alleviate or restrict problems associated with ESD by utilizing specialized conductive or static dissipative flooring and coating products. Specifically focused on the common conditions and design considerations required for a proper installation, including substrate requirements, grounding and strapping recommendations, and product selection criteria.
An understanding of the relationship between color and our environment remains an area in which much research has been conducted; yet, we are ever fascinated with the topic of color and the nuances it has yet to unfold. Our work aims to begin a dialogue regarding color trends, color application in an environment, the psychological impact of color and an understanding of the balance between these philosophies.
Failure of flooring materials is usually due to a combination of factors rather than a single, simple cause that led to below expectation performance. For example, construction on a less than high quality concrete slab on grade, combined with the absence of a vapor retarder, with residual concrete wear and contamination, followed by inadequate surface preparation, and finally poor coating selection applied during inclement ambient conditions that is turned over early to severe service is a recipe for disaster.
The use of sustainable materials in the flooring market has gained widespread interest in recent years. Bio based raw materials contribute significantly to these efforts and are used to prepare environmentally friendly coatings. Castor oil-based emulsions are used as polyols in waterborne polyurethane coatings. These systems have outstanding chemical resistance and good durability. But they have inherent issues like very short pot life, poor appearance / flow properties, and delayed early hardness development.
The Energy Innovation Center’s approximately 80-year-old concrete floor had significant divots and was badly spalled and cracked. The concrete floor, often referred to as “The Racetrack” due to its oval shape, serves as the main hallway to a newly renovated technology hub and needed significant structural and aesthetic work. The re-finished floor had to offer durable functionality as well as blend into the neo-industrial look of the re-tasked building.
Polyaspartic coatings have been used for years in high-performance industrial protective applications such as bridge infrastructure, water and wastewater, and transportation. More recently, these types of coatings have begun to migrate into commercial and architectural applications due to end users’ desires to protect their architectural infrastructure while maintaining a high degree of aesthetics and beauty.
The coating of concrete floors is always challenging. Unlike walls, ceilings, tanks, bridges and other structures floors have vehicular and pedestrian traffic. This usually means that they are coated during off hours with tight schedules. Contractors need to plan the projects to meet the needs and schedules of owners. Often times this means multiple trips to the facility to review the scope of work and provide workable schedules. Required testing is generally performed prior to the scheduled start of work or after the floors are back in service.
Before coating concrete, you must first know what the substrate is that you are working on. Since all concrete floors are not the same there is no one, size fits all system. In fact, many buildings will have several different types of concrete floors. Add to that the different mix designs, placement techniques and environmental conditions and you end up with a menagerie of concrete floors exhibiting a wide variety of properties.
One of the greatest problems facing the flooring industry is moisture vapor emission associated with concrete floors. Coatings blister and peel, wood flooring warps and buckles, adhesives fail to perform and carpet grows mold costing millions of dollars in claims, repairs and serviceability issues. This paper will discuss the causes, evaluation and mitigation methods to address this issue.
Moisture problems are prevalent all over North America, almost independent of climate. With an understanding of moisture in concrete and the various test methods available to quantify that moisture, simple strategies to mitigate moisture problems can be employed. But a strategy cannot be employed if the moisture problem is never quantified. This presentation identifies the various types of moisture issues present day in and day out and outlines the methods available to discover hidden moisture conditions.
The range of flooring options available in today’s marketplace is vast, each having their own individual place and performance characteristics. As such, owners and design professionals must evaluate many factors to determine the best flooring option for a structure’s given needs and what its environment will allow. One flooring system or option gaining popularity is polished concrete. Although polished concrete is relatively new in North America (approximately 15 years), this system offers many advantages over other flooring options.