Specification Part 3 - Road & Bridge Works - Urban Administration ...

Normally, the maximum layer thickness at any point should not exceed 100 mm. In placing
multiple lifts, they should be arranged according to the correct method as as directed by the
Engineer in charge.
501.8.3.5. Covering the profile corrective courses: Profile corrective course particularly shall
be so planned that the layer shall be covered by the designed base/wearing course at the earliest
opportunity, before opening to regular traffic.
501.8.4. Surface finish: The relevant provisions of Section 900 shall apply.
501.8.4.1 Quality control of work: - For quality control work following shall apply.
2.
Seal coat/surface
dressing
Stripping value of
aggregates (immersion tray
test)
water absorption of
aggregates
-dowater
sensitivity of mix
grading of aggregates
soundness (magnesium and
sodium Sulphate)
polished stone value
Initially one set of 3
representative
specimens for each
source of supply.
Subsequently when
warranted by changes in
the quality of
aggregates.
S.No Type of construction Test Frequency(min)
Quality of binder
number of sample per
lot and test as per IS:73
IS:217 and 8887 as
1
applicable
Prime coat/tack coat/fog
At regular close
spray
Binder temperature
intervals
One test per 500 m 2 and
Rate of spread of Binder not less than two tests
per day.
Quality of binder
same as mentioned
under serial no.1
Aggregate impact value/los one test 50 m 3 of
angeles abrasion value aggregate
flakiness index and
elongation index
-do-
Initially one set of 3
representative
specimens for each
source of supply.
Subsequently when
warranted by changes in
the quality of
aggregates. (if required)
one test per 25m 3 of
aggregates
Initially one
determination by each
method for each source
of supply, then as
warranted by change in
the quality of the
aggregates.
as required