Technical Specification - UNDP

Embankments, which are formed of materials that contain rock but also
contain sufficient compatible material other than rock or other hard material
to make rolling feasible, shall be placed and compacted in the manner and to
the point of consolidation approved by the Engineer. Moisture shall be added
as directed by the Engineer. Compaction tests will be made wherever the
Engineer determines they are feasible and necessary. Each layer must be
approved by the Engineer before the next layer is placed.
2.24.5 Measurement and Payment
1st) Measurement
Embankment including rockfill will be measured in cubic meters by the
average end area method. The volume paid for shall be to the lines and levels
shown on the Drawings. and calculated by the Engineer's Representative.
Measurement of ducts shall be made in linear meter laid in place in respect of
each diameter separately.
2nd) Payment
The accepted quantities of Embankment measured as provided above shall be
paid for at the Contract unit price complete in place including placing,
watering and compacting and the accepted quantities of ducts measured as
above shall be paid for at the Contract unit price complete in place as
specified including excavation, backfilling, compaction, etc.
Payment will be made under:
Pay Item
Embankment
Pay Unit
Cubic Meter/Sq. Meter/as mentioned in B.O.Q.
The diameter of ducts shall be as shown in the Bill of Quantities.
2.24.6 Relevant Tests and Standards
The following tests should be carried out unless otherwise directed by the Engineer
at frequencies laid down in the specifications:-
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Test Standard Limit
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Grain size Analysis of AASHTO T88 As
directed or as Soils (Sieve Analysis)
AASHTO M57
Relative Density ASTM D4254 --
Atterberg Limits
Liquid Limit AASHTO T89 Max.
35%
Plasticity Index AASHTO T90 Max.
10%
Linear Shrinkage BS1377 Part 4 Max.3%
Max.
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