RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Presentation
On
“RBI Grade‐81 – Pavement Material & Soil Stabilizer”
(A Environment Friendly Soil Stabilizer )
By
Alchemist Touchnology Limited,
New Delhi
RBI Grade‐81
RBI Grade‐81 Introduction
Pavement Material & A Natural Soil Stabilizer
¾Inorganic soil stabilizer & pavement material
¾Patented worldwide including India
¾Properties
9Cementitious Powder Stabilizer
9Non‐Toxic RBI Grade‐81 CAN BE USED FOR:
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾ In – Situ Soil /Aggregate Treatment to increase CBR for: ¾ Sub ‐ Grade
¾ Sub – Base ¾ Base course
¾ Hard Shoulders
RBI Grade‐81
Advantages of RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾ Construction Time and Cost reduction ¾ Drastically increases the strength
¾ Treated layers are water resistant
¾ Reduces thickness, use of transport, and earth‐
moving machinery substantially
¾Longer Durability which reduces Maintenance
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Environmental Benefits of using RBI‐81
¾Reduces , leaching and use of bitumen
¾Reduces energy consumption
¾Saves material like Aggregates/Good soil/bitumen
¾Reduces Carbon Emission enabling, carbon credits
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾Subgrade CBR of 5% and Traffic 20 MSA Pavement Section considered for study ¾ The Conventional Pavement IRC 37:2001
¾ RBI Grade 81 Pavement
BC = 40 mm
DBM = 100 mm
WMM = 250 mm
GSB = 300 mm
BC = 40 mm
DBM
= 50 mm
4% RBI Grade 81 = 125 mm
with agg. base
3% RBI Grade 81 = 200 mm
with soil sub base
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Data Assumed For Carbon Footprint Calculation
In the CHANGER software ¾Length is 1000 m
¾Carriageway is two lane, lane width is 3.5 m
¾No Clearing and Piling
¾No cutting and filling
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾Quarry distance 10 Km
¾Refinery distance 20 Km
¾Distance of mixing Plant for both WMM and DBM is 5 Km
¾Distance for transportation of RBI Grade 81 is 200 Km
Changer Software Detail: www.irfghg.org
RBI Grade‐81
Carbon Footprint Calculation
by Using CHANGER Software
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Possible Aggregate Savings Type of Road
App.
Aggregate Saving % age
NH
SH
PMGSY
40
60
70 RBI Grade‐81
Used in India : Varying temperature humidity & climatic conditions
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Used in India : Varying temperature humidity & climatic conditions
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
RBI Grade‐81 In India
Pavement Material & A Natural Soil Stabilizer
¾Introduced in State Schedule of Rates (SOR):
9 Karnataka
9 Puducherry
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Grid Marking
Watering
Placing RBI Grade‐81 Bags
Wet Mixing
Spreading & Dry Mixing
Compacting
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Road Composition PMGY- (Conventional Weir Hantra
– Nagla baidawa, Bharatpur)
Conventional IRCSP 20
Transverse Camber 2 %
20 mm PMC with seal coat
Base: WBM 75 mm Gr III
Base: WBM 100 mm Gr II
150 mm Granular Sub Base/ WBM Gr I
300 mm Sub Grade
450
nd Level
Embankment
Road Crust
Road Composition
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Case Study with RBI Grade‐81 in India…
Transverse Camber 2 %
25 mm SDBC
Base: 150 mm
70% soil + 30% 20 mm Agg +4% RBI Treated layer
Granular Sub Base = 100 mm
Existing Sub Grade
450
Ground Level
Embankment
Road Crust
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
PMGY Road IRC:37/IRCSP20
Location: Weir Hantra–Nagla Baidawa, Bharatpur
Soil sandy loam,
Population = 1000, Life=15 Y
Traffic = 70 CVPD,
Traffic Curve C,
Traffic = 0.7 msa
Design Methodology for RBI Grade 81
CBR 6%,
E subgrade = 55.4MPa,
E sub base = 126.8 Mpa,
Erbi*Hrbi3= E(sb+b)3*H(sb+b)
Erbi =700 Mpa
Thickness of RBI layer (Hrbi )= 126 mm say 150 mm
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Case Study with RBI Grade‐81 in India…
• PWD Approach Road to BBH Mines, Chitradurga
9Classification of Road: State Highway (SH‐48)
9Length:2500m X Width: 8m
9Design Traffic
ƒ 3000 CVPD upto 20 T axle load
9Construction Period:
9 19th January 2009 to 28th January 2009
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Case Study with RBI Grade‐81 in India…
After Treatment
Before Treatment
Road Composition
(Conventional)
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Transverse Camber 2 %
25 mm SDBC
Base: WBM 75 mm Gr III
Base: WBM 150 mm Gr II
Existing Sub Base 300-350 mm
Existing Sub Grade
450
Ground Level
Embankment
Road Crust
Road Composition
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Case Study with RBI Grade‐81 in India…
Transverse Camber 2 %
25 mm SDBC
Base: 150 mm
3% RBI Treated layer
Existing Sub Base 300-350 mm
Existing Sub Grade
450
Ground Level
Embankment
Road Crust
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Pavement Evaluation After 2 Years…..
‰ Visual Observation : Points
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
‰ Benkelman Beam Deflection, mm
mm
RBI Grade‐81
‰ Field CBR (DCP) % Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
mm/km
‰ Roughness (Dipstick)
mm/km
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
‰ Pavement Modulus (FWD)
MPa
Load Applied: 560 kPa
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Conclusions of Case Study….
Pavement Material & A Natural Soil Stabilizer
• RBI Grade‐81 enhances the properties of the soil
• RBI Grade‐81 Section indicate excellent functional and structural capacity & ability to withstand tensile failure in wearing surface
• Bonding between stabilized soil layer & bituminous layer found adequate & intact
• RBI Grade‐81 may be used to save natural resources like aggregates
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Some Completed Works in India
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Internal Road ¾
Location
: Delhi
: Sirifort Sport Complex
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Parking Area
¾
Location
: Delhi
: Sirifort Sport Complex
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Approach Road
¾
Location
: Haryana
: Aravali Biodiversity Park, Gurgaon
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : PWD Approach Road to BBH Mines
¾
Location
: Karnataka
: Chitradurg
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Durbal Hanjik Road, Badgam
¾
Location
: Jammu & Kashmir
: Srinagar
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Quarry Road near Weigh Bridge
¾
Location
: Karnataka
: Kolar
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
¾
State
¾
Project Name : Trial at Km 167 on NH‐22 ¾
Location
: Himachal Pradesh
: Kufri
RBI Grade‐81
Some Completed Stretches in India
¾
State
¾
Project Name : PMGSY Rural Road
¾
Location
: Orissa
: Village Dhamra
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Some Completed Stretches in India
¾
State
¾
Project Name : Internal Village Road
¾
Location
: Tamil Nadu
: Tirupur
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Some Completed Stretches in India
¾
State
¾
Project Name : Uttara Balakati Khurda Road
¾
Location
: Orissa
: Barijanga
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Some Completed Stretches in India
¾
State
¾
Project Name : Runway, Ladakh
¾
Location
: Jammu & Kashmir
: Nyoma
Pavement Material & A Natural Soil Stabilizer
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Cores Extracted From Field….
20 mm, PMC
150 mm, RBI‐81 Stabilized Base
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Cores Extracted From Field….
SDBC
RBI‐81 Stabilized Aggregate Base
RBI‐81 Stabilized Soil Sub Base
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Cores Extracted From Field….
250 mm, RBI‐81 Stabilized Sub‐grade
RBI Grade‐81
Pavement Material & A Natural Soil Stabilizer
Thank You
Alchemist Touchnology Limited
Alchemist House, Building No. 23,
Nehru Place, New Delhi ‐ 110019
Phone: +91‐11‐40600800, Fax: +91‐11‐40600888
Website: www.rbigrade81.com