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

7.
Mastic Asphalt
Stability of Mix
Water sensitivity of mix
(Retained tensile strength)
Swell test on the mix
Control of temperature of
binder in boiler, aggregate in
the dryer and mix at the time
of laying and rolling
control of binder content and
grading of the mix
Rate of spread of mixed
material
Density of compacted layer
Quality of binder
Aggregate impact value/los
angeles abrasion value
Flakiness index and
elongation index
Striping value
Water sensitivity of mix
Grading of aggregates
Water absorption of
aggregates
Soundness (Magnesium and
Sodium Sulphate)
Percentage of fractured
faces
Binder content and
aggregate grading
and mixed aggregates
from the dryer of each
400 tonnes of mix
subject to a minimum of
two tests per plan per
day.
For each 400 tonnes of
mix produced a set of 3
Marshall specimens to
be prepared and tested
for stability flow value
density and void content
subject to a minimum of
two sets being tested
per plant per day
Same as mentioned
under serial no.2
As required for the
Bituminous concrete
at regular close intervals
one test for each 400
tonnes of mix subject to
a minimum of two tests
per day plant
Regular control through
check on the weight of
mixed material and layer
thickness
One test per 250m 2
area
same as mentioned
under serial no.1
same as mentioned
under serial no.2
-do-
-do-
-do-
Two tests per day per
plant both on the
individual constituent
and mixed aggregates
from the dryers
Same as in serial No.2
same as mentioned
under serial no.2
same as mentioned
under serial no.2
Periodic subject to
minimum of two tests
per day per plant