Services

Laboratory and site testing in seven service groups

232 priced test items on the 2026 schedule, each performed to a named ASTM, AASHTO, BS EN, ISO, ISRM, ACI or DIN method. A test not listed can usually be accommodated on request.

Soil specimen under unconfined compression in the laboratory

Geotechnical & Earth Materials


We characterise soil, rock and fill from basic index properties through to shear strength and compressibility, giving designers the parameters they need for foundations, embankments and slopes.

Soil

  • Moisture contentASTM D2216
  • Soil classification (USCS)ASTM D2487
  • Sieve / particle size analysisASTM D6913 / AASHTO T88
  • Hydrometer analysisASTM D7928
  • Specific gravity of soil solidsASTM D854 / AASHTO T100
  • Atterberg limits (LL, PL, PI)ASTM D4318 / AASHTO T89, T90
  • Standard and modified ProctorASTM D698 / D1557
  • California Bearing Ratio (CBR)ASTM D1883 / AASHTO T193
  • Unconfined compressive strengthASTM D2166
  • Direct shearASTM D3080
  • Consolidation (oedometer)ASTM D2435
  • Triaxial UU / CU / CDASTM D2850 / D4767 / BS 1377-8

Rock

  • Density, porosity and absorptionASTM D7263 / D6473
  • Rock UCS and triaxial strengthASTM D7012
  • Point load strength indexISRM / ASTM D5731
  • Brazilian tensile strengthASTM D3967
  • Direct shear of discontinuitiesASTM D5607
  • Fly ash bulk density and specific gravityASTM C29 / C188

ASTM · AASHTO · BS 1377 · ISRM

Asphalt paving crew on a bridge approach

Aggregate, Asphalt & Pavement


Source approval and production control for road and concrete materials: aggregate quality, bitumen properties and asphalt mix performance, tested to the specifications used on Cambodian road projects.

Aggregate

  • Sieve / grain sizeASTM C136 / AASHTO T27
  • Material finer than 75 µmASTM C117 / AASHTO T11
  • Specific gravity and absorptionASTM C127 / C128
  • Unit weight / bulk densityASTM C29 / AASHTO T19
  • Los Angeles abrasionASTM C131 / C535
  • Crushing value (ACV), impact value (AIV)BS 812-110 / 112
  • SoundnessASTM C88 / AASHTO T104
  • Flakiness and elongation indexBS EN 933-3 / BS 812-105.2
  • Sand equivalentASTM D2419 / AASHTO T176
  • Clay lumps, organic impuritiesASTM C142 / C40

Bitumen & asphalt

  • PenetrationASTM D5 / AASHTO T49
  • Softening pointASTM D36 / AASHTO T53
  • DuctilityASTM D113 / AASHTO T51
  • ViscosityASTM D88 / D4402
  • Marshall stability and flowASTM D6927 / AASHTO T245
  • Extraction and gradationASTM D2172 / D5444
  • Asphalt mix designAsphalt Institute MS-2 / AASHTO R35
  • Asphalt coring and thicknessASTM D5361 / D3549

ASTM · AASHTO · BS EN · Asphalt Institute

Capped concrete cylinders labelled for compressive strength testing

Concrete, Cement & Masonry


From mix design to strength at age. We test fresh and hardened concrete, cement, grout, bricks and blocks, with a 3000 kN compression frame for high-strength concrete up to C60.

Concrete

  • Mix design and trial mixACI 211.1 / ASTM C192
  • Slump, temperature, unit weightASTM C143 / C1064 / C138
  • Air content, pressure and volumetricASTM C231 / C173
  • Cube compressive strength, incl. C60BS EN 12390-3
  • Cylinder and core compressive strengthASTM C39 / C42
  • Flexural strength of beamsASTM C78 / BS EN 12390-5
  • Grout compressive strengthASTM C1019
  • Water penetration and permeabilityBS EN 12390-8 / GB/T 50082

Masonry & cement

  • Hollow, solid and clay brickASTM C67
  • Concrete block / CMUASTM C140
  • AAC blockASTM C1693
  • Water absorption, brick, block, AACBS EN 772-7 / 772-11
  • Setting time, consistency, soundnessASTM C191 / BS EN 196-3
  • Cement finenessBS EN 196-6

ASTM · BS EN · ACI · GB/T

Reinforcing bars with mechanical couplers prepared for tensile testing

Steel & Mechanical


Tensile, bend and proof testing of the steel that holds a structure together: reinforcing bar, mechanical couplers, prestressing strand, anchor and connection bolts, and structural sections.

Reinforcement & strand

  • Rebar tensile, 6 to 50 mmASTM A370 / ISO 15630-1
  • Yield, tensile strength, elongationASTM A370 / A615
  • Bend and re-bend testASTM A370 / ISO 15630-1
  • Mechanical coupler and welded jointISO 15835 / ASTM A1034
  • Seven-wire strand, 12.7–15.6 mmASTM A1061 / A416

Bolts & structural steel

  • Anchor bolt tensile, with / without nutASTM F606
  • Connection bolt tensileASTM F606 / F3125
  • Single shear test of boltASTM F606
  • Plate, tube, I/H/C-section tensileASTM A370 / ISO 6892-1
  • Galvanised steel tensileASTM A370 / ISO 6892-1
  • Torque wrench calibrationISO 6789

ASTM · ISO · JIS · GB/T

Rebound hammer test on a concrete wall

Structural Inspection & NDT


Condition and integrity assessment without damaging the structure, for welds and steelwork, existing concrete and piles, on new construction and on buildings already in service.

Concrete NDT & adhesion

  • Rebound hammerASTM C805 / BS EN 12504-2
  • Ultrasonic pulse velocity (UPV)ASTM C597 / BS EN 12504-4
  • Carbonation depthBS EN 14630
  • Rebar locator / cover meterBS 1881-204
  • Pull-out test, anchor or rebarASTM E488
  • Pull-off adhesion, concrete and coatingsASTM C1583 / D4541

Steel, welds & piles

  • Magnetic particle testing (MT)ASTM E709 / ISO 17638
  • Dye penetrant testing (PT)ASTM E165 / ISO 3452-1
  • Ultrasonic testing (UT)ASTM E164 / ISO 17640
  • Visual testing (VT)AWS D1.1 / ISO 17637
  • Ultrasonic thickness gaugingASTM E797
  • Pile integrity test (PIT)ASTM D5882
  • Pile dynamic analysis (PDA)ASTM D4945
  • Cross-hole sonic logging (CSL)ASTM D6760

ASTM · BS EN · ISO · AWS

MATLAB drilling rig performing SPT on a building site

Site Investigation & Field Testing


Our drilling crews and field technicians mobilise nationwide, and every sample returns to our own laboratory, so field data and laboratory results come from one accountable team.

Investigation

  • Soil drilling, sampling and SPTASTM D1586
  • Rock coring with RQD and UCSASTM D2113
  • Dynamic probing light (DPL, 10 kg)ISO 22476-2
  • Dynamic cone penetration (DCP, 8 kg)ASTM D6951
  • Vane shear (field)ASTM D2573

In-situ testing

  • Plate load test, 100 kN and 500 kNDIN 18134 / ASTM D1196
  • In-situ CBRASTM D4429 / BS 1377-9
  • Light weight deflectometer (LWD)ASTM E2835 / E2583
  • Field density, sand coneASTM D1556
  • Field density, nuclear gaugeASTM D6938
  • Concrete and asphalt coringASTM C42 / D5361
  • Slump and sampling on siteASTM C143 / C172

ASTM · AASHTO · DIN · ISO · BS

Mineral and soil samples in tins ready for analysis

Water, Chemical & Mineral Analysis


Water quality tested to ISO and APHA methods for drinking, construction and environmental use, together with elemental and mineralogical analysis of ores and mineral samples.

Water quality

  • pH, turbidity, conductivity, TDSISO 10523 / 7027-1 / 7888
  • Total and suspended solidsAPHA 2540 / ISO 11923
  • Hardness, alkalinity, dissolved oxygenISO 6059 / 9963-1 / 5814
  • Chloride, sulfate, nitrate, fluorideISO 9297 / 10304-1
  • Iron, manganese, phosphateISO 6332 / 6333 / 6878
  • Heavy metals: As, Cd, Cr, Pb, Hg, Ni and othersISO / APHA methods

Mineral & metal

  • X-ray fluorescence (XRF)Elemental composition
  • X-ray diffraction (XRD)Mineralogical phase identification
  • Metal grade determinationAu, Ag, Cu, Pb, Zn, As and others

ISO · APHA · WHO · Cambodian MoE

Testing packages

Fixed-price packages for road layers and aggregates

Standard combinations of tests for each pavement layer, priced as a package in the 2026 schedule.

PackageTests included
Embankment materialGrain size, Atterberg limits, specific gravity, moisture content, modified Proctor, CBR
Subgrade materialGrain size, Atterberg limits, specific gravity, moisture content, modified Proctor, CBR
Subbase materialAs subgrade, plus Los Angeles abrasion
Base course materialAs subbase, plus unit weight
Coarse aggregateGrain size, unit weight, specific gravity and absorption, LA abrasion, soundness, flakiness, elongation, finer than 75 µm
Fine aggregateGrain size, unit weight, moisture, specific gravity, soundness, sand equivalent, clay lumps, finer than 75 µm
Asphalt / bitumenSpecific gravity, penetration, ductility, softening point, residue from distillation
Staff and mobilisationEngineers, senior technicians, lab assistants and labourers available by the day or month. Mobilisation by pickup or drilling truck is priced by distance band, up to 600 km.
Framework accountsStanding rates, priority scheduling for pours and layer approvals, a named technician for your site, and consolidated monthly reporting.

Ask for the general quotation

Send your test schedule or specification and we will return a written quotation with test methods and unit rates. Our two published schedules, laboratory and site investigation, come with licence and registration attached and are valid to 31 December 2026.