OUR SERVICES

Materials Testing

CONCRETE TESTING

ROUTINE LAB/ IN-SITU TESTING

  • Compressive Strength, dimensions and density of Cubes, cylinders, cores, masonry blocks, paving units ….
  • Water Permeability.
  • Water Absorption and Porosity. 
  • Determination of Initial Surface Absorption 
  • Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration. 
  • Tensile Splitting Strength 
  • Depth of Carbonation.
  • Transverse Strength and modulus of rupture of Tiles, beams, kerb-stones. 
  • Chemical Resistance of Floor and Wall Tiles
  • Modulus of Rupture of Ceramic Floor and Wall Tiles
  • Slump, bleeding, density, air content, setting time of fresh concrete.
  • Cement Content of Concrete.
  • Pull Out Test. • Pull Off Test. 
  • Load Tests on Structures or Part of Structures.

SOIL AND ROCK TESTING

  • Maximum dry density moisture relationship (Modified / Standard Proctor). 
  • California Bearing Ratio (CBR).
  • Liquid Limit, Plastic Limit and Plasticity Index 
  • Field Density Test 
  • Particle size analysis by Sieving and sedimentation (Hydrometer). 
  • Determination of Density (Bulk Density) 
  • Water (Moisture) Content of Soil and Rock by Mass
  • Specific Gravity of Soil
  • Unconfined Compressive Strength and Elastic Modulus determination of Cohesive Soil.
  • Point Load Strength Index of Rock
  • Shrinkage Factors of Soil by the Mercury Method 
  • Sand Equivalent Value of Soils and Fine Aggregates
  • Percolation Test and field soil permeability test.
  • Water permeability testing (Constant and falling head).
  • Consolidation Testing. 
  • Direct shear testing.
  • In -situ CBR 
  • Plate Load Test.
  • Zone Load Test.

AGGREGATE TESTING

  • Sieve Analysis
  • Shell Content 
  • Drying Shrinkage in Aggregate
  • Clay Lumps and Friable Particles 
  • Potential Alkali-Silica Reactivity 
  • Flakiness & Elongation Index 
  • Determination of Particle Densities and Water Absorption for Coarse & Fine Aggregate 
  • Light Weight Pieces 
  • Soundness of Aggregate by Use of Sodium Sulphate or Magnesium Sulphate
  • Compaction Fraction Test 
  • Sand Equivalent
  • Fully & Partially Crushed Faces
  • Los Angeles Abrasion (LAA)
  • Aggregate Crushing Value (ACV) 
  • Aggregate Impact Value (AIV) 
  • Ten Percent Fines Value (Dry and Soaked) 
  • Moisture Content 
  • Bulk Density

STEEL TESTING

  • Tensile Strength 
  • Bend Test
  • Re-bend test 
  • Chemical analysis per element
  • Coating continuity (Holiday Detection)
  • Coating Thickness 
  • Coupler test (up to 32mm dia.) 

WATER TESTING

  • Sulphate Content
  • Chloride Content 
  • pH Value 
  • Total Dissolved Solids
  • Total Suspended Solids 
  • Carbonates & Bicarbonates Alkalinity.

BITUMEN AND BITUMINOUS MIXTURES TESTING

  • Penetration.
  • Softening Point. 
  • Flash Point. 
  • Ductility. 
  • Bulk Specific Gravity, Density & Water Absorption 
  • Sieve Analysis of extracted aggregate. 
  • Bitumen Content by extraction.
  • Theoretical Maximum Specific Gravity & Density. 
  • Marshall Stability, flow, and loss of stability of asphalt mixtures.
  • Percentage of Voids (VFA, VFB, VMA)
  • Thickness or Height of Compacted Bituminous Paving Mixtures (Cored Specimens)

CEMENT TESTING

  • Chemical Analysis
  • Compressive Strength, including preparation of specimens 
  • Heat of Hydration 
  • Soundness 
  • Consistency and Setting Time 
  • Fineness of Cement (Specific Surface)

PILE TESTING

  • Low Strain Integrity Testing of Piles
  • Cross Hole Sonic Logging of Piles
  • Monitoring and Reporting of Piles
  • Dynamic Load Testing of Pile
  • Pile Instrumentation

CHEMICAL TESTING

  • Sulphates Content of Concrete, aggregates, water, soil and rock. 
  • Chlorides Content of Concrete, aggregates, water, soil and rock. 
  • pH Value
  • Organic Matter Content. 
  • Organic Impurities. 
  • Carbonates and bi-carbonates content.

IN-SITU SPECIAL TESTING

  • Pull-out of cladding system. 
  • Pull-out of Steel rebars. 
  • Loading test for existing structures. 
  • Zone loading test.
  • Plate load test. 
  • In-situ CBR
  • In-situ Permeability.
  • Determination of dry-film-thickness (DFT). 
  • Pull-of testing

QUALITY CONTROL PROGRAMME OF PROJECTS

  • Developing quality control programs for medium and large-scale projects
  • Establishing on-site third-party laboratory including test equipment and manpower.
  • Monthly statistical reports.

STRUCTURAL ASSESSMENT

CONCRETE STRUCTURES 

  • Concrete cores obtaining and testing (Destructive).
  • Determining the depth of carbonation (Destructive).
  • Window opening and steel exposing (Destructive). 
  • Exposing existing footings (Destructive).
  • Concrete Scanning to Detection of elements inside concrete (I.e., steel, pipes, cables, voids, live electrical cables …) using Hilti PS 1000 XScanner.
  • Rebound Hammer (NDT). • Ultra-Sonic Pulse Velocity (NDT).
  • Surface Hardness by Rebound Hammer (NDT)
  • Half Cell Potentials of Uncoated Reinforcing Steel in Concrete (NDT).
  • Measurement of Velocity of Ultrasonic Pulses in Concrete (NDT).
  • Concrete Cover measurements (NDT)
  • Concrete mapping and steel rebar size and length determination.
  • Crack detection, and measurements. 
  • Reporting inclusive data analysis, conclusions and repair recommendations using latest software’s.

 STEEL STRUCTURES (ON-LAND AND SUBSEA)

  • Corrosion mapping and remaining steel thickness measurements. 
  • Steel coating thickness measurements. 
  • Magnetic Particle Inspection (MPI) for welded sections. 
  • ACFM Services.
  • Cathodic protection check.


EXISTING PAVEMENT ASSESSMENT

  • Determination of Pavement Condition Index (PCI).
  • Determination of International Roughness Index (IRI).
  • Asphalt coring and asphalt tiles obtaining for further lab testing and quality check.
  • Trial pit excavation and sampling the underneath pavement layers, for further lab testing and quality check.
  • Data collection, interpretation, and analysis.


INSTRUMENTATION 

  • Vibration and sound monitoring.
  • Settlement Monitoring. 
  • Crack monitoring. 
  • Reporting inclusive data analysis, conclusions, and recommendations.

SPECIAL STUDIES AND CONSULTANCIES 

  • The technical expertise of Gulf Survey’s Team has been assembled to the benefit of our clients; therefore, we believe that each obstacle is a new opportunity and new knowledge to expand our market contribution. 
  • Gulf Survey team can put its own experience, and know-how into the right approach, to create a technical solution for field related issues.