Salt damage investigation (salt analysis and corrosion survey for concrete and steel structures)
Visualize the salt content and accurately grasp the deterioration progress of structures that can be utilized in longevity planning.
Salt damage investigation is a survey conducted to evaluate whether concrete structures and steel materials are deteriorating due to the effects of salts contained in sea salt and de-icing agents. It is carried out on various structures, primarily focusing on social infrastructure such as bridges, buildings, port structures, and road structures. Our company conducts sample collection using the drill method or core method and quantitatively assesses the penetration of salts by analyzing the amount of chloride ions at different depths. Furthermore, by combining this with rebar detection using electromagnetic radar methods, we can correlate the positions of rebar with the amount of salt, allowing for a more detailed assessment of the progression of salt damage. Additionally, by conducting natural potential measurements and rebar exposure surveys, we can confirm the presence of rebar corrosion and the areas that require repair, providing valuable data for the consideration of maintenance and repair plans.
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basic information
< Survey Target Structures > Bridges, buildings, port structures, road structures, etc. < Main Survey and Testing Contents > - Sample collection using the drill method / core method - Analysis of chloride ion concentration by depth - Rebar detection using electromagnetic radar method - Natural potential measurement - Rebar exposure survey < Acquired Data > - Distribution of chloride ion concentration - Relationship between rebar location and salt concentration - Presence or absence of rebar corrosion - Basic data necessary for considering repair scope
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Applications/Examples of results
■ Regular inspections and detailed surveys of bridges and road structures ■ Assessment of salt damage to port structures and coastal proximity structures ■ Investigation of deterioration causes in areas where freeze prevention agents are applied ■ Preparation of basic materials for repair and reinforcement planning ■ Understanding the current situation when formulating maintenance management plans and longevity plans
Detailed information
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This is a sample of how to summarize the results of natural potential measurements.
Company information
Our company was founded in January 1990 and has been primarily engaged in on-site technical operations (construction management). We have integrated the technologies, experiences, and knowledge cultivated through our on-site technical operations, registering as a surveying business in March 1994, as a construction consulting business in November 1998, and further expanding our operations by registering as a compensation consulting business in July 2011. In recent years, we have been focusing on projects aimed at extending the lifespan of structures, inspection services, and surveying using drones and laser scanners, among other initiatives. Additionally, we are fully committed to researching and utilizing new technologies across the company.
