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SUMMARY

Testing of Samples as per Table below using AEISG code testing for reactivity over a period of 7 days.

January 2025 | QMR010125

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).  Eight of the 37 samples contained more than trace  reactive sulphide with 3 sample containg ≥ 1% reactive sulphide as described in Table 3.  All samples tested at not reactive as per the AEISG code practive, however the QMR test identifies that sample 5514C-RG12 has the potential to become reactive if weathered.

Table 3 – Samples containing ≥1% reactive sulphide

Conclusion:

All samples are not reactive when tested as per the QMR Reactive Ground Test and the AEISG Code of Practice. Note sample 5514C-RG12 will become reactive if weathered.

References:

QMR Reactive Ground Test: rga5060ed.xlxs, templog58.xlxs, AEISG1.xlxs and AEISG2.xlxs.

Assessed By:

Dr G. Cavanough

Date:

7th January 2024