office of the chief engineer, project swastik, c/o 99 apo ... - Bro.nic.in

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B) For Granular Sub Base (G.S.B), Wet Mix Macadam (W.M.M), Dense Bituminous Macadam
(DBM) & Bituminous Concrete (BC) Work :-
i) Automatic Core cutting Machine ii) Thermometers :-
a) Metallic type (Mercury in steel) with 30cm stem and 3m stem for near and distant readings.
b) Glass type (Mercury in glass) of ranges 110 0 C, 250 0 C
c) Infrared Temperature meter
d) Digital thermometer (-50 0 C to 300 0 C)
iii) Electronic balance of 10kg capacity of accuracy 0.5gm. iv) Electronic balance of 5kg
vi)
vii)
viii)
ix)
capacity of accuracy 0.01gm. v) Standard set of 16 sieves, lid and Pan :-
a) 450mm dia for coarse aggregate:- 63mm, 53mm, 37.5mm, 26.50mm, 13.20mm,
9.50mm, 6.7mm and 4.75mm.
b) 200mm dia for file aggregates :- 2.36mm, 2.0mm, 1.18mm, 600 micron, 425 micron,
300 micron, 150 micron, 75 micron.
Flakiness and Elongation test gauge as per IS:2386 Part-1
Water Adsorption Test apparatus as per IS:2386 Part-5
Aggregate Impact value test apparatus as per IS:2386 Part-4
Penetration test apparatus
x) Softening point test apparatus
xi)
xii)
Apparatus for determining solubility in trichloroethylene test
Sayboly Furol Viscometer as per IS:3117 for emulsion
xiii) Electrically operated centrifuge type bitumen extractor and Tolune (C 6 H 5 CH 3 )
xiv)
xv)
xvi)
xvii)
Glassware, graduated cylinder, spatula, scoops, steel scales, measuring tapes, enamelled trays,
filter paper, 4mm thick glass, glass marking pencils, heat resistant hard gloves.
Mechanical sieve shaker – 450mm dia, 200mm dia.
Riffle boxes for sampling of coarse and fine ggregator.
Marshall Stability Test Apparatus required for determining stability of mix for DBM & BC
works.
10. The following tests must be carried out for Polymer Modified Binders-70
Sl.
No
Test
Method of test
Grade and
requirement
for CRMB-
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1 Penetration at 25 deg C, 0.1mm, 100gm, 5 Sec.