Table 1 - Results for Testing using the AEISG Code of Practice
Table 2 - Results for Testing using the QMR Reactive Ground Test
Prior to testing as per the AEISG Code of Practice each sample was assessed for reactivity risk based on pH, carbonate and amount of reactive sulphide using the QMR Reactive Ground Test (refer to Table 1 and Table 2 for results of both tests). All samples were alkaline and contained carbonates which reduces the risk of reactivity. Three samples contained sulphide with 2 having a trace amount. One samples contained 4.86% sulpide(refer to Table 1 and Figure 1) and 11.5% coal which inhibits a reaction for this sulphide content when tested as per the AEISG Code of Practice Reactivity Screening.
Figure 1 -Pyrite visible under microscope
Conclusion:
No samples were found to be reactive when tested as per the AEISG Code of Practice and the QMR Reactive Ground Test.
References:
QMR Reactive Ground Test: rga16.xlsx and templog12.xlxs
AEISG Test: HVO_AEISG_for_QMR29-07-22.xlxs
Assessed By:
Dr G. Cavanough
Date:
28th July 2022