Phone No:

+65 65615366 / / +65 97886514

MON – SAT 8.00 – 18.00

Sunday CLOSED

Search

Soil & Aggregates Testing

Geometrical

  • Grading (Particle Size Distribution)
  • Fines Content
  • Fines Quality
  • Shell Content
  • Angularity Number
  • Particle Shape Index
  • Flakiness & Elongation Index
  • Percentage of Fractured Particles
  • Flat and/or Elongated Particles

Physical

  • Moisture Content
  • Los Angeles Abrasion
  • Abrasion Value
  • Crushing Value
  • Impact Value
  • 10% Fines Value
  • Bulk Density
  • Particle Density & Water
    Absorption

Chemical

  • Chloride Content
  • Sulphate Content
  • Humus Content
  • Fulvo Acid
  • Loss on Ignition
  • Potential ASR (Chemical Method)
  • Lightweight Organic Contaminator

Durability

  • Soundness
  • Drying Shrinkage

Specialist

  • Petrographic Examination
  • Alkali-Silica Reactivity by Accelerated Mortar Bar and Concrete Prism

Geological Inspection

In light of restrictions on the supply of aggregates from existing sources into Singapore, testing and evaluating the quality of aggregates from foreign sources has become essential. R.A.K. is here to help ensure that the aggregates you source are suitable for use. We offer comprehensive geological inspections at quarry sites, including:

  • New source assessment
  • Specification compliance
  • Comparison between materials
  • Quality control
  • Prediction of in-service behaviour

Imported Aggregates Testing

Early 2007, the Building and Construction Authority (BCA) of Singapore has implemented a rigorous three- stage testing regime for imported aggregates to ensure their quality. As an authorized analyst, R.A.K. offers comprehensive testing services that meet BCA requirements, including:

  • Petrographic Examination (ASTM C295)
  • Alkali-Silica Reactivity – Mortar Bar Method (ASTM C1260)
  • Water-Soluble Chloride (EN 1744-1, Clause 7)
  • Acid-Soluble Sulphate Content (EN 1744-1, Clause 12)

Reclamation Sand Testing

Large-scale land reclamation has been a vital part of Singapore’s development since the 1960s. At R.A.K., we are proud to offer specialized reclamation sand testing services to ensure the quality and suitability of your materials. Our comprehensive testing includes:

  • Sieve Analysis
  • Silt Content & Coral Content
  • Organic Matter Content Angle of Shearing Resistance
  • 12 Heavy Metals Analysis