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SUMMARY
TESTING OF SAMPLES USING AEISG CODE TESTING FOR REACTIVITY OVER A PERIOD OF 7 DAYS
AUGUST 2023 | QMR08-08-22
Table 1 - Results for Testing using the AEISG Code of Practice
Table 2 - Results for Testing using the QMR Reactive Ground Test
Figure 1- Very thin layer of visible pyrite in sample SP_RG_12
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). Two samples contained more than trace level of reactive suplhide. Sample SP_RG12 contained 3.7% reactive sulphide and sample SP_RG10 containde 1.1% reactive sulphide. Both these samples tested as marginal when tested as per the AEISG Code of Practice. These low levels of reactive sulphide do not have the capacity to cause an increase in temperature should a reaction occur.
Conclusion:
All samples apart from SP_RG10 and SP_RG12 were found to be not reactive when tested as per the AEISG Code of Practice and QMR Reactive Ground Test. Samples SP_RG10 and SP_RG12 tested as marginal when tested as per the AEISG Code of Practice. The QMR Test identifed that the samples have a low reactive sulphide content.
References:
QMR Reactive Ground Test: QMRrga30.xlsx and QMRtemplogQMR.xlxs
AEISG Test: data74.xlxs
Assessed By:
Dr G. Cavanough
Date:
4th August 2023