NZ4202 - Unitec

SNZ NZSa4202 95 A583169 0042476 383
Issued June 1995 NZS 4202: 1995
3.4.6 Rock
3.4.6.1
Where solid rock is likely to be encountered in the course of excavation it shall be
measured as extra value.
3.4.6.2
Separate items shall be measured for excavating rock in:
(a)
(b)
(c)
3.4.7 Old sites
Bulk excavation;
Basement excavation;
Trench excavation.
3.4.7.1
Breaking upand removal of sutfaceconcrete or other hard substances not exceeding
150 mm in thickness shall be measured in square metres, and the thickness stated.
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3.4.7.2
Breaking up and removal of brickwork, concrete or other hard substances, other than
surface materials, met with in excavation shall be measured in cubic metres as extra
value, and sectional size and length stated.
3.4.8 Backfill
Backfill shall be described and measured in accordance with 3.3.
3.4.9 Disposal
3.4.9.1
The disposal of excavated material shall be described and measured in accordance
with 3.3.
3.4.9.2
If the excavated material is to be deposited on the site or at a specified off-site
location the distance to be carted shall be stated.
3.4.1 O Filling
3.4.10.1
Filling shall be described by reference to type of material, compaction etc. and be
measured as follows:
(a)
(b)
Up to 300 mm thickness - square metres (state thickness);
Over 300 mm thickness - cubic metres.
3.4.1 0.2
Grading and blinding of the surface of the filling shall be measured in square metres.
3.4.1 0.3
Where proof rolling or the like of the subgrade is specified an item shall be measured.
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