Test Plan for ASTM C618 Coal Fly Ash and Raw or Calcined Natural Pozzolans
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Test Plan for ASTM C618 Coal Fly Ash and Raw or Calcined Natural Pozzolans
| Property | Material | ASTM / Method | Details |
|---|---|---|---|
| Required tests: | |||
| Strength Activity Index | Mortar | ASTM C109 | Compressive Strength Test of 2″ Cube Specimens Test compares 7 and 28 day strength of control cubes and cubes replaced with 20% of supplementary cementitious material |
| Water Requirement | Mortar | ASTM C109 | Water Requirement for Strength Activity Index Test batches are made to determine amount of water required to create consistency within ±5 of control |
| Chemical Constituents | Powder | ASTM C114 | Standard Chemical Testing of Powdered Cementitious Material |
| Moisture Content | Powder | ASTM C114 | Moisture Content of Powder Material is dried to constant weight at 110°C. |
| Loss on Ignition | Powder | ASTM C114 | Loss on Ignition of Powder Material is dried to constant weight at 750°C. |
| Soundness (Autoclave Expansion) | Cement Paste Prisms | ASTM C151 | Autoclave Expansion of Cement Paste Prisms Prisms are made by replacing 20% cement with the supplementary cementitious material being tested. |
| Density | Powder | ASTM C188 | Density (Specific Gravity) of Fly Ash or Natural Pozzolan. An alternate test method is ASTM C604. |
| Fineness | Powder | ASTM C430 | Fineness of Material When Washed Over a #325 Sieve |
| Optional tests: | |||
| Drying Shrinkage | Mortar Bars | ASTM C157 | Increase in Drying Shrinkage. Comparison between 3 control bars and 3 test bars. |
| Sulfate Resistance | Mortar Bars | ASTM C1012 | Length Change of Mortar Bars Exposed to a Sulfate Solution Mortar bars are cast using the materials of interest. Bars are subsequently immersed in a sulfate solution and intermittent length comparitor readings are performed to determine the effects of sulfate exposure on the mortar. |
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You can view our complete listing of accredited standards and more information on supplementary cementitious materials (SCM) testing.