Test Frequency (Dry Mix)

The following thermal resistivity test frequency shall be provided for EACH quarry source. Test

samples shall be taken randomly as specified below:

Project backfill stockpile size Frequency of test <100 tonnes 1 test per different quarry source 100 tonnes to 500 tonnes 2 tests per different quarry source 500 tonnes to 1000 tonnes 3 tests per different quarry source >1000 tonnes for every 1000 tonnes or part thereof 3 tests per different quarry source In addition to thermal tests, compaction tests shall be undertaken to demonstrate correct placement of material. One test per 100m of trench shall be randomly performed as specified in the next article.

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