The following link is to a PDF file: Fly Ash Certificate
Fly ash or, Pulverised Fuel Ash, is the ash produced from burning coal in coal fired power stations.
Golden Bay Cement has a long standing relationship with Genesis Energy to utilise fly ash from the Huntly Power Station in the cement and concrete industries.
Golden Bay Cement uses fly ash as a:
Fly ash is used to enhance concrete properties and reduces the impact of fly ash disposal on the environment. The inclusion of Huntly fly ash in concrete offers the following benefits:
Huntly fly ash has both pozzolanic and cementitious properties and is classified as a Fine Grade (AS3582) Class C - Fly ash. The term 'Fine' is reflective of the size of the particles and reflects the fact that 75% of all the particles are less than 45 micron. The Class C classification is established through chemical analysis. Huntly fly ash is classified class C because it has more than 10% calcium oxide (CaO) and greater than 50% Silicon dioxide (SiO2) plus aluminium (Al2O3) plus iron oxide (Fe2O3) (ASTM C618).
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BAG SIZES
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20kg
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25kg
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40kg
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Bulk Bag
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Bulk
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Fly Ash |
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| Units | ||
| LOI | % | 0.3 |
| SiO2 | % | 40.1 |
| Al2O3 | % | 20.4 |
| Fe2O3 | % | 10.1 |
| CaO | % | 19.0 |
| MgO | % | 3.4 |
| SO3 | % | 0.8 |
| Na2O | % | 2.1 |
| K2O | % | 0.5 |
| TiO2 | % | 1.5 |
| P2O5 | % | 0.4 |
| NaEq | % | 2.4 |
| Chloride | % | <0.01 |
| Available Alkaki | % | 0.7 |
| Units | ||
| Relative Strength | % | 110 |
| Relative Water | % | 90 |
| Specific Gravity | t/m3 | 2.45 |
| Retained 45 Micron | % | 12.5 |