POZZOLAN "N" VS. FLY ASH CLASS "F"
| Physical Analysis Parameter | Class N Results | ATSM C618 Class “N” Spec | Class “F” Results | ATSM C618 Class “F” Spec | |
| Fineness, amount retained
when Wet-sieved on No. 325 Sieve, Max. % |
9.1 | 34 | 24.2 | 34 | |
| Fineness,Blaine | 39,670 | ATSM C311 12,000 Min. | NR | NR | |
| Pozzolanic Activity Index W/Portland Cement at 28 days, % |
85.3 | 75% Min. | 88.0 | 75% Min. | |
| Pozzolanic Activity Index W/ Lime at 7 days, PSI Min. |
1310 | 800 Min. | 1128 | 800 Min. | |
| Water requirments, max. % control | 106.9 | 115 | 98 | 105 | |
| Soundness (Autoclave Expansion
or Contraction, max %) |
.01 | 0.8 Max. | .05 | 0.8 Max. | |
| Specific Gravity, max variation From average % |
2.49 | 5.0 | 2.49 | 5.0 | |
| Reduction of Mortar Expansion
At 14 days, min. % |
<0.01% 99.7 | 75 | NR | NR | |
| At 14 days, max. % | 0.005 | .020 | NR | .020 |