particular specifications (road works) - CIDCO Maharashtra Ltd.

CIDCO OF MAHARASHTRA LTD
C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 275
stone metal. Elongation index is weight of elongated particles divided
by total non-flaky particles. The value of flakiness index and elongation
index so found are added up.
6.2.2 Grading requirements :
The aggregates shall conform to the grading given below:
TABLE – 2
GRADING REQUIRMENTS OF AGGREGATES FOR WET MIX MACADAM
SIEVE DESIGNATION PERCENT PASSING
53 mm 100
45 mm 95 -100
26.5 mm ---
22.4 mm 60 – 80
11.2 mm 40 – 60
4.75 mm 25 – 40
2.36 mm 15 -30
600 microns 8 -22
75 microns 0-8
Materials finer than 425 micron shall have Plasticity Index (PI) not
exceeding 6.
The final gradation approved within these limits shall be well graded
from coarse to fine and shall not vary from the low limit on one sieve to
the high limit on the adjacent sieve or vice versa.
6.2.3 Construction operation:
6.2.3.1 Preparation of Base:
Clause 404.3.1 of MORT & H shall apply.