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ASTM C494 – Standard Specification for Chemical Admixtures for Concrete


The ASTM C494 specification covers materials for use as chemical admixtures to be added to hydraulic-cement concrete mixtures for the purpose or purposes indicated for the eight types as follows:

  1. Type A – Water-reducing admixtures
  2. Type B – Retarding admixtures
  3. Type C – Accelerating admixtures
  4. Type D – Water-reducing and retarding admixtures
  5. Type E – Water-reducing and accelerating admixtures
  6. Type F – Water-reducing, high range admixtures
  7. Type G – Water-reducing, high range, and retarding admixtures
  8. Type S – Specific performance admixtures


accelerating; chemical admixtures; concrete; physical requirements; retarding; specific performance; testing; water reducing

ASTM C494 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C494 standard.

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