ORGANIC IMPURITIES IN FINE AGGREGATE

ASTM C40; AASHTO T21
Main features
  • Compact, robust and easily portable for site use
  • No need to prepare a standard solution
  • Simple, straightforward test procedure
  • Gives dependable measurements that are easily interpreted
General description

If aggregate contains organic impurities it may not be suitable for inclusion in concrete. Organic impurities, usually tannic acid and its derivatives, may interfere with the chemical reactions of hydration. Impurities are more likely to be found in fine (sand) aggregate.

Organic Impurities complete Test Set, containSS Graduated Bottle, Reference Color Comparison Chart (Sodium Hydroxide Reagent is included with this kit and should be sourced

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Technical specifications

Ordering info

AG 0111 Organic Impurities Set.

Accessories

AG 0112 Graduated Bottle, 300 ml
AG 0113 Reference Color Comparison Chart

AG 0114 Sodium Hydroxide Solution