1.6Measurement
General
If provisional quantities are specified, or there have been variations to the designed dimensions of excavations, do not commence backfilling until the quantities of excavation and backfilling have been agreed and recorded.
Measurement of non-rippable material
If payment is to be claimed for excavation in non-rippable material, do not remove the material until the level and (if applicable) class of material have been determined.
2.QUALITY 2.1Inspection
Witness points
Refer annexure. Give sufficient notice so that inspection may be made of the following stages:
Trenches excavated before laying the service or drain.
Services or drains laid in trenches and ready for backfilling.
Any boring or jacking operation.
Service conduits ready for testing.
2.2Conduit Testing
Time: Test all conduits after completion of subgrade preparation or trench backfilling and before commencement of pavement construction.
Test: Conduits must be tested by easily passing a mandrel at least 80% of the conduit’s nominal internal diameter through the conduit.
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