Civil Material Testing Services
Our Civil Engineering laboratories at Muscat, Sohar, Salalah and Duqm cover a wide range of mechanical, physical and chemical testing of soil, aggregate, rock, concrete, cement, GGBS, micro silica, fly ash, filler, admixture, asphalt mix, bitumen, masonry blocks, paving tile, kerb stones, marble, floor tiles, water, steel, and other construction materials.
We provide support for testing of geotechnical investigation, and testing and investigation of building and road work construction materials.
Our scope of services include:
- Destructive and non-destructive methods (NDT)
- Laboratory and field characterisation of soil and rock
- Design of concrete and asphalt mixes as per project specifications
- Pile integrity testing for concrete piles
- Concrete durability tests.
Material Testing Standards
Material testing at GTS is conducted in accordance with British Standards (BS), American Standards (ASTM), German Standards (DIN), European Standards (EN), or International Organisation for standardization (ISO).
Additionally, GTS have been Accredited for compliance with ISO/IEC 17025:2017 standard for a wide range of physical, mechanical and chemical tests.
Additionally, GTS have been Accredited for compliance with ISO/IEC 17025:2017 standard for a wide range of physical, mechanical and chemical tests.
Range of Specialised Services
Our testing covers a wide range of specialised services, from routine testing of construction materials and extending the consultation on complex issues related to material technology and applications.
- Sampling of fresh concrete, soil, aggregate, rock, cement, water & asphalt
- Particle size distribution by wet/dry sieve analysis, Atterberg limits, MDD & OMC, CBR, SEV
- Soils shear strength parameters by using direct shear test and free swell & swell pressure of soil
- Permeability of granular soil & clays/silt and consolidation tests
- Unconfined compressive strength of rock & soil
- In-situ tests: Field density test by sand replacement method; Field density test by EDG and NDG; Plate load test; California bearing ratio
- Aggregate Crushing Value, Aggregate Impact Value, Ten Percent Fines Value, Resistance to Abrasion & Impact in Los Angeles Abrasion Value, Flakiness & Elongation, Crushed Face Analysis, Flat and Elongated Pieces, Light Weight Pieces, Shell Content, Clay Lumps & Friable Particles, Drying Shrinkage
- Petrography examination of aggregate, rock and concrete core specimens
- Polished stone value for aggregate, rock
- Potential alkali reactivity as per ASTM C1260, ASTM C227, ASTM C586, ASTM C1105, ASTM C289, ASTM C1567
- Relative density & water absorption of aggregate and rock sample
- Rock grading and weight classification, breakage index L/D ratio, rock resistance to weathering, point load index and UCS
- Water absorption of concrete blocks, kerbs, channels & flags
- Compressive strength of concrete cube, cylindrical specimens, precast blocks, tiles
- Concrete investigation: Half-cell potential survey, NDT testing on hardened concrete by ultrasonic pulse velocity, rebound hammer, cover meter
- Destructive testing for concrete, pull-off test, obtaining & testing of drilled concrete core
- Cement physical & chemical testing
- Concrete & asphalt mix design and laboratory trial mix
- Fresh concrete testing slump, temperature, air content, bleeding and initial & final setting time of concrete
- Differential temperature monitoring of mass concrete by using thermocouples
- Concrete durability tests: Chloride migration, Rapid chloride permeability, Water absorption, ISAT and Water permeability
- Asphalt testing, core density & asphalt field compaction, Marshall Density, stability & flow, Maximum Theoretical Density, voids in Marshall & field sample, voids filed with asphalt.
