Structural Evaluation

The unique service in our CES–GMT Center is the structural evaluation of existing structures, whether it is new or old structure. Our team has the capability and experience to test, analyses and evaluate even serious and complex cases. In this service, destructive and non-destructive testing is utilized to deduce the most important factors and causes of failures and deteriorations. Our judgment, as it is required in this service, will be revealed only on solid scientific and practical knowledge and experience.

The most important procedures in our approach to any study case are the defining of methodology for tasks implementations.

Our CES–GMT Center is equipped with technology tools to perform a professional, mostly non-destructive, in-situ testing to acquire the correct information about the properties of the bearing members and elements of the investigated structures. The combination of structural, material and soil investigation teams provide the best conditions for team work on each investigated building.

Our long-time structural experience is based on the utilization of the international experiences and codes in the structural evaluation of historic, old, medium age and new R.C buildings. We performed about 1000 successful cases in this field




Rebound Number of Hardened Concrete-Schmitt Hammer

ASTM –C 805

Pulse Velocity through Concrete –Ultrasonic Test

ASTM C 1084

Ferro scan survey test to assess the steel reinforcement in concrete structures

BS 1881-Part 204

Determination of location and extent of concrete cracking

ACI 224-1R

Cracks in Concrete Structure (hand-held microscope & Mounted Monitor)

ACI 224-1R

Hidden Moisture and Intrusion in concrete structures using infrared Camera

ACI 224-1R

Temperature and Humidity Test

ACI 224-1R

Corrosion potential-Half Cell Potential Meter

ACI 224-1R


Potential Alkali Reactivity of Carbonate Rocks as Concrete Aggregates

ASTM C1585

Carbonation of Concrete (in situ test using Phenolphthalein Solution

ASTM C1585

Acid-Soluble Chloride in Mortar and Concrete.

ASTM C 1152

Density, Absorption, and Voids in Hardened Concrete

ASTM C 597

Water penetration for hardened concrete

BS EN 12390-8

Strength of Anchors in Concrete & Masonry Elements –Pullout

ASTM – E488-10

Shrinkage/expansion of concrete

ASTM C 340

Drilled Cores and Sawed Beams of Concrete.




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Corrosion potential-Half Cell Potential Meter

Corrosion Analysis allows the contractor to limit the maintenance tasks on reinforced concrete to the areas where it is really required. The Canin+ is the fastest instrument for corrosion analysis, offering a practical, cost-effective approach to the investigation of reinforced concrete. Corrosion analysis with the Canin+ allows a rapid, comprehensive test of the site and provides a fast assessment of locations where corrosion is likely to take place. Corrosion analysis with the half-cell potential method: accurate field potential measurements aid in detecting active corrosion in rebar.

In Situ Concrete Carbonation Test Using Phenolphthalein Indicator Solution

The existing method for the measurement of the depth of carbonation of concrete depends on colorless phenolphthalein indicator, which is sprayed onto concrete surface showing a change in color depending on the pH factor.

Acid-Soluble Chloride in Mortar and Concrete

Water-soluble chloride, when present in sufficient amount, is capable of leading to initiation or acceleration of the corrosion of metals, such as steel, embedded in or contacting a cement system such as mortar, grout, or concrete

Ferro scan survey to assess the steel reinforcement in concrete structures

Ferro scan Survey characterize steel reinforcement such is lactation and orientation of reinforcement steel bars, diameter size, and depth of bars (concrete cover)

Assessment of existing concrete structure strength

In order to assess the Strength & Quality of existing structures both destructive & nondestructive tests are carried out using core cutting machine for core compressive strength determination, also Schmitt Hammer for strength assessment and Pulse Velocity through Concrete (Ultrasonic) test for quality assessment. Load test of structural members and elements, to assess the bearing capacity and deflection.

Strengthening of existing concrete structure elements

CES–GMT Company and upon completion of evaluation & assessment of concrete structural elements including structural design analysis, can recommend the best methods, materials and techniques to be used in Strengthening of existing concrete structure elements, our services for Strengthening are provided separately from test reports or certificates.