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Aggregates
Hong Kong Testing Co., Ltd. provides physical and chemical testing of aggregate according to
British Standard (BS 812) ,
American Standard (ASTM) and
Hong Kong Construction Standard (CS3)


Physical Chemical
  • Particle size distribution
  • Clay, silt and dust content
  • Flakiness index
  • Elongation index
  • Shell content
  • Relative density and water absorption
  • Bulk density
  • Moisture content
  • Aggregate crushing value
  • Methylene blue value
  • Los Angeles value
  • Ten per cent fines value
  • Impact value
  • Soundness
  • Drying shrinkage
  • Effect of organic substances by mortar method
  • Total sulphate content
  • Acid / Water-soluble sulphate content
  • Acid / Water-soluble chloride salts
  • Acid-soluble material
  • Soluble calcium oxide content
  • Soluble silica content
  • Presence of humus

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Anchor bolt / Dowel bar
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