The document discusses bituminous mix design which involves combining aggregates, bitumen, filler materials like cement or GGBS, shredded plastic, and an anti-stripping agent called Bitu-grip. It provides details on the materials used, testing procedures, results of mix designs for different types of mixes like BC, DBM, BM, and MSS. The use of shredded plastic and Bitu-grip can increase bonding between aggregate and bitumen while filler reduces voids and increases strength. GGBS can be used instead of cement, providing cost savings. Use of these additives results in reduced binder and bitumen content.

1. BITUMINOUS MIX DESIGN
• BASICS
• Bituminous Mix design is Combination of Aggregate,
bitumin,filler(Cement,GGBS,Lime),
• Shreded plastic and Bitu-grip is few material is required to mix to increse
the life of Mix and increase the affinity of coating of aggregate.
• MS-2,IS-8887 ,IRC:SP:81-2008 and Specification of Ministry of Road and
Transportation is used for design.
• GGBS-Graded Granular Blast furnace slag.

2. MATERIALS
• 1.Aggregate-A.Black Basalt B. Granite with quartz mix(Basic material),90%
material is available of granite with quartz, while 10% materials of black
basalt in jamshedpur city.
• 2.Bitumin- VG30 is used for mix as a Binder.
• 3.Filler-(Cement,Lime)-To reduce the voids and increase the strength.
• 4.Other Materials
• A. Shreded plastic(Used to increase the Bonding property and to reduce
the binder content)
• B. Anti Stripping Agent(Bitu-grip) to increase the bonding property
between aggregate and Bitumin.
• C.GGBS –Used alternate of cement or lime as a filler materials.It is also a
use of waste of tata steel.

3. AGGREGATE
Black Basalt (10% available)
Granite(90% availability)

4. Plastic
6mm metal
Bitu-Grip
Aggregate(20mm,10
mm)
Bitumin
GGBS
Mix
MIX

5. TESTING

6. Stripping Value Test
Stripping value less if
Bitu-Grip is not used.
No stripping if Bitu-grip is
used.

7. RESULT SUMMARY
SUMMARY OF MIX DESIGN FOR BC,DBM ,BM AND MSS
Sr.no
. Type of Mix
Thickness
for Design AGGREGATE
OBC/Resid
ual Binder Plastic
Bitugrip/a
dditives
Wate
r
Stability(K
N)
Standar
d(KN)
Actual
Flow(mm)
Density(N
/mm2)
Designed
Flow(mm)
1BC- Grade-I (45-65)mm
20m
m
10m
m 6mm
Cemen
t GGBS
26% 32% 40% 2% 0%5% of mix 2% of mix
0.2% of
mix 0 13.52 9 3.32.42 2 to 4
Alternative
2BC- Grade-I (45-65)mm 26% 32% 40% 0% 2%5% of mix 2% of mix
0.2% of
mix 0 13.52 9 3.32.42 2 to 4
3BC-Grade-II (30-45)mm 0% 30% 68% 2% 0%
5.6% of
mix 2% of mix
0.2% of
mix 0 13.676 9 2.452.34 2 to 4
Alternate
4BC-Grade-II (30-45)mm 0% 30% 68% 0% 2%
5.6% of
mix 2% of mix
0.2% of
mix 0 9 2.34 2 to 4
5BM-Grade-II (50-75)mm 30% 50% 20% 0% 0%4% of mix 2% of mix
0.2% of
mix 0 9
not
specified 3.22.35
not
specified
Alternative
6BM-Grade-II (50-75)mm 30% 50% 20% 0% 2%4% of mix 2% of mix
0.2% of
mix 0 9
not
specified 3.22.35
not
specified
7DBM-Grade-II
more than
50mm 25% 33% 40% 2% 0%
4.5% of
mix 2% of mix
0.2% of
mix 0 13.98 9 2.52.35 2 to 4
Alternative
8DBM-Grade-II
more than
50mm 25% 33% 40% 0% 2%
4.5% of
mix 2% of mix
0.2% of
mix 0 13.98 9 2.52.35 2 to 4
9
MSS(Close
graded premix
carpet) 20mm 0% 75% 23% 2% 0%
4.1% of
mix 2% of mix
0.2% of
mix 0
not
specified 2.32
not
specified
Alternate
10
MSS(Close
graded premix
carpet) 20mm 0% 75% 23% 0% 2%
4.1% of
mix 2% of mix
0.2% of
mix 0
not
specified 2.32
not
specified
11
Microsurfacing(
Grade-III)
11.1-
16.3kg/m2 0% 70% 30% 0% 2%
6.5-12% of
aggregate
2% of
aggregate
0.5-2% of
aggregate 6-12%
not
specified
not
specified
Alternate
12
Microsurfacing(
Grade-III)
11.1-
16.3kg/m2 0% 70% 30% 2% 0%
6.5-12% of
aggregate
2% of
Aggregat
e
0.5-2% of
Aggregate 6-12%
not
specified
not
specified
Slurry 10.1- 6.5-12% of
2% of
Aggregat 0.5-2% of not not

8. NOTE
• 1.Bitugrip is used of M/S HINCOL
• 2. Source of stone chips - Hatha
• 3.Bitumen Grade- VG30
• 4.For Tack coat RS1(E:W::1:2),For Microsurfacing Modified
Bitumen Emulsion ,for slurry seal SS2 cationic Bitumen
Emulsion is used.
• 4.PSC-Lafarze Cement or GGBS or OPC
• 5. In BC-II , no deleterious material or organic material or
overburden dust or clay mix is allowed.
• 6. This mix design should be calibrated in Hot mix plant before
implement and plant proportion should be prepared.

9. Comparative Benefit
• 1.Bitu-grip is used to increase the Bonding property between aggregate
and bitumen.
• 2.Filler is used to reduce the void in Mix and to increase strength.
• 3.Shreded plastic is used in mix design it will help to reduce binder and re-
use of waste products to save Enviornment.

10. COST COMPARISION TO EXISTING
• 1. 0.6% quantity of bitumen is saved in BC-I.
• 2. 0.2% quantity of Bitu-grip have extra cost.
• 3.2% shreded plastic is under use is also a extra cost .
• 4.GGBS should be used in place of cement is also causes for
cost savings.

11. Calculations
Ex. If 100000sqm of 40mm BC is planned then there
QUANTITY
Item Qty. UOM Rate(Rs) Cost
BC-40mm 100000 sqm
Mix 9360000 kg
Bitumen(5.6) 524160 kg
Bitumen(5) 468000 kg
Savings 56160 kg 42 2358720
Cement 187200 kg
GGBS 187200 kg
Savings
Cost saving from
cement to GGBS 3 561600
Plastic 187200 kg
Bitugrip 18720 kg 225 4212000

12. Microsurfacing
Ex.If 200000sqm of Microsurfacing is planned then there
QUANTITY
Item Qty. UOM Rate(Rs) Cost
Microsurfacing 200000 sqm
Mix 3260000 kg
cement 65200 kg
GGBS 65200 kg
Savings
Cost saving from
cement to GGBS 3 195600