Condition Assessment of Reinforced Concrete Structures

A condition assessment involves evaluating the current state of reinforced concrete structures to identify any signs of deterioration, such as cracks, delamination, or corrosion. The goal is to determine the present condition and assess the risk of future corrosion.

CTS employs various techniques for condition assessments, including Crack and Delamination Mapping, Potential Mapping, Chloride Content Analysis and Profiling, Corrosion Rate Measurements, Concrete Resistivity, and Petrographic Analysis.

Crack and Delamination Mapping involves identifying and documenting cracks and areas of delamination (separation of concrete layers) in the structure. This helps to understand the extent and severity of the damage.

Potential Mapping measures the electrical potential of the steel reinforcement within the concrete. It helps identify areas where corrosion activity is likely to be occurring, providing insights into the corrosion risk.

Chloride Content Analysis involves measuring the concentration of chlorides at various depths within the concrete. High chloride levels can lead to corrosion of the steel reinforcement, so this analysis is crucial for assessing corrosion risk.

Corrosion Rate Measurements determine the rate at which the steel reinforcement is corroding. This information is vital for predicting the remaining service life of the structure and planning maintenance or repair activities.

Concrete Resistivity measures the electrical resistance of the concrete, which is an indicator of its ability to resist ion flow. Low resistivity can suggest higher moisture content and increased risk of corrosion.

Petrographic Analysis is a microscopic examination of concrete samples to study their composition, microstructure, and the presence of any harmful substances. This analysis helps identify the root cause of deterioration.

CTS provides expert analysis and comprehensive reports that detail the present condition of the structure and the root causes of any observed corrosion. This information can be crucial in resolving disputes between structure owners and contractors regarding the durability and integrity of the concrete structure.

CTS has conducted condition assessment on a wide range of reinforced concrete structures, including Leaking Basements for Buildings and Towers, Concrete Cooling Towers, Intake and Discharge Structures, Car Parks, Bridges and Civil Infrastructure, Concrete Canals, Jetties and Berths.