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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.
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Concrete repair is a neglected primary example of sustainable construction and green building practices. Sustainability in construction is a topic of increasing importance. Concrete has high embodied energy and much documentation exists about the sustainable nature of concrete in new construction. Concrete maintenance, protection, and repair are the ultimate acts of sustainability in construction because they preserve this embodied energy. Rating systems should be adopted to better capture the sustainable nature of concrete preservation
This paper documents the removal of floor coatings from concrete surfaces utilizing UHP water jet tools. Traditional methods, including shot blasting and grinding, meet the required production rates, but may fail to remove all of the invisible contaminants. They can also introduce dust into the environment.
Successful repair material and coating applications are dependent on proper concrete surface preparation. Different surface preparation technologies and quality control methods are reviewed to increase the successful application of materials applied to existing concrete surfaces.
Successful repair material and coating applications are dependent on proper concrete surface preparation where different technologies and methods must be reviewed and characterized, as well as quality control methods used to increase the successful application of materials applied to existing concrete surfaces.
Control of corrosion in reinforced concrete structures including prevention protection and mitigation. Applicability considerations for the life cycle of the structure and use of proactive maintenance will also be presented.
Articles on concrete structures, concrete substrates, and corrosion. Categorized under Concrete, Cathodic Protection, Coatings for Concrete, Corrosion of Concrete & Concrete Reinforcement. Presented at NACE Int. conferences. 2016 NACE E-BOOK
Using concrete for enhancing a property’s value has opened the door to a wide variety of new materials and techniques, which are described and compared here.
Understanding the key components that cause osmotic blisters is essential to not only applying the proper concrete floor coating, but potentially walking away from a possible high-risk floor. Resinous floor coatings are organic coatings that have limitations. Coating failures are typically linked to moisture in the concrete slab. This can be a problem for resinous floor coatings that aren't moisture tolerant.
Concrete sludge mixing and storage tanks in wastewater treatment plants can be exposed to corrosive environments. Protective linings are the best solution to this problem. But there are a number of design considerations based on this author’s experience that are not readily obvious at the outset.
After 35 years or longer in service, the concrete infrastructure in wastewater collection systems and treatment plants has deteriorated due to various corrosion and physical degradation mechanisms. This paper reviews the major mechanisms that cause deterioration of concrete and protective coatings. Also, examples of infrastructure degradation are presented along with a discussion of the best diagnostic methods for condition assessment of concrete for the various mechanisms.