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ASTM International, 12/15/2012
Publisher: ASTM
File Format: PDF
$30.00$60.00
Published:15/12/2012
Pages:5
File Size:1 file , 180 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This specification covers coal fly ash and raw or calcined natural pozzolan for use in concrete where cementitious or pozzolanic action, or both, is desired, or where other properties normally attributed to fly ash or pozzolans may be desired, or where both objectives are to be achieved.
Class
N
F
C
Silicon dioxide (SiO2) plus aluminum oxide (Al2O3) plus iron oxide (Fe2O3), min, %
70.0
50.0
Sulfur trioxide (SO3), max, %
4.0
5.0
Moisture content, max, %
3.0
Loss on ignition, max, %
10.0
6.0A
6.0
Fineness:
Amount retained when wet-sieved on 45 μm (No. 325) sieve, max, %
34
Strength activity index: A
With portland cement, at 7 days, min, percent of control
75B
With portland cement, at 28 days, min, percent of control
Water requirement, max, percent of control
115
105
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