“RBI Grade-81 – Pavement Material & Soil Stabilizer”

RBI Grade‐81Pavement 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 IntroductionRBI Grade‐81 Introduction

Inorganic soil stabilizer & pavement

material

Patented worldwide including India

Properties

Cementitious Powder Stabilizer

Non‐Toxic

RBI Grade‐81Pavement Material & A Natural Soil StabilizerRBI Grade‐81

CAN BE USED FOR:RBI Grade‐81

CAN BE USED FOR:

In – Situ Soil /Aggregate Treatment to increase CBR for:

Sub ‐ Grade

Sub – Base

Base course

Hard Shoulders


Construction Time and Cost reduction

Drastically increases the strength

Treated layers are water resistant

Reduces thickness, use of transport, and earth‐

moving machinery substantially

Longer Durability which reduces Maintenance

Advantages of RBI Grade‐81


Reduces , leaching and use of bitumen

Reduces energy consumption

Saves material like Aggregates/Good

soil/bitumen

Reduces Carbon Emission enabling, carbon credits

Environmental Benefits of using RBI‐81


Subgrade CBR of 5% and Traffic 20 MSA Pavement Section considered for study

The Conventional Pavement IRC 37:2001

BC = 40 mm

DBM = 100 mm

WMM = 250 mm

GSB = 300 mm

RBI Grade 81 Pavement

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


Data Assumed For Carbon Footprint Calculation

In the CHANGER software

Length is 1000 m

Carriageway is two lane, lane width is 3.5 m

No Clearing and Piling

No cutting and filling


Quarry distance 10 Km

Refinery distance 20 Km

Distance of mixing Plant for both WMM and

DBM is 5 Km

Distance for transportation of RBI Grade 81 is

200 Km

Changer Software Detail: www.irfghg.org

RBI Grade‐81Pavement Material & A Natural Soil StabilizerCarbon Footprint Calculation

by Using CHANGER Software


Possible Aggregate Savings

Type of RoadApp.

Aggregate Saving % age

NH 40SH 60

PMGSY 70

RBI Grade‐81Pavement Material & A Natural Soil StabilizerUsed in India : Varying temperature

humidity & climatic conditions

RBI Grade‐81Pavement Material & A Natural Soil StabilizerUsed in India : Varying temperature

humidity & climatic conditions


RBI Grade‐81 In IndiaRBI Grade‐81 In India

Introduced in State Schedule of Rates (SOR):

Karnataka

Puducherry


Grid Marking Spreading & Dry MixingPlacing RBI Grade‐81 Bags

Watering Wet Mixing Compacting


20 mm PMC with seal coat

Road Crust

Road Composition PMGY- (Conventional Weir Hantra – Nagla baidawa, Bharatpur)

450

300 mm Sub Grade

Base: WBM 100 mm Gr II

Embankment

nd Level

150 mm Granular Sub Base/ WBM Gr I

Base: WBM 75 mm Gr III

Conventional IRCSP 20

Transverse Camber 2 %


25 mm SDBC

Road Crust

Road Composition

450

Existing Sub Grade

Granular Sub Base = 100 mm

Embankment

Ground Level

Case Study with RBI Grade‐81 in India…Case Study with RBI Grade‐81 in India…

Base: 150 mm 70% soil + 30% 20 mm Agg +4% RBI Treated layer



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



• PWD Approach Road to BBH Mines, Chitradurga

Classification of Road: State Highway (SH‐48)Length:2500m X Width: 8mDesign Traffic

3000 CVPD upto 20 T axle loadConstruction Period:19th January 2009 to 28th January 2009



Before TreatmentBefore Treatment

After TreatmentAfter Treatment


25 mm SDBC

Road Crust

Road Composition(Conventional)

450

Existing Sub Grade

Base: WBM 150 mm Gr II

Embankment

Ground Level

Existing Sub Base 300-350 mm

Base: WBM 75 mm Gr III



25 mm SDBC

Road Crust

Road Composition

450

Existing Sub Grade

Existing Sub Base 300-350 mm

Embankment

Ground Level


Base: 150 mm 3% RBI Treated layer



Pavement Evaluation After 2 Years…..Pavement Evaluation After 2 Years…..Visual Observation : Points


Benkelman Beam Deflection, mmBenkelman Beam Deflection, mm

mm


Field CBR (DCP) % Field CBR (DCP) %


Roughness (Dipstick)Roughness (Dipstick)mm/km

mm/km


Pavement Modulus (FWD)Load Applied: 560 kPa

Pavement Modulus (FWD)Load Applied: 560 kPa

MPa


Conclusions of Case Study….Conclusions of Case Study….

• 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


Some Completed Works in India


State : Delhi

Project Name : Internal Road

Location : Sirifort Sport Complex


State : Delhi

Project Name : Parking Area

Location : Sirifort Sport Complex


State : Haryana

Project Name : Approach Road

Location : Aravali Biodiversity Park, Gurgaon


State : Karnataka

Project Name : PWD Approach Road to BBH Mines

Location : Chitradurg


State : Jammu & Kashmir

Project Name : Durbal Hanjik Road, Badgam

Location : Srinagar


State : Karnataka

Project Name : Quarry Road near Weigh Bridge

Location : Kolar


State : Himachal Pradesh

Project Name : Trial at Km 167 on NH‐22

Location : Kufri

RBI Grade‐81Pavement Material & A Natural Soil StabilizerSome Completed Stretches in India

State : Orissa

Project Name : PMGSY Rural Road

Location : Village Dhamra


State : Tamil Nadu

Project Name : Internal Village Road

Location : Tirupur


State : Orissa

Project Name : Uttara Balakati Khurda Road

Location : Barijanga


State : Jammu & Kashmir

Project Name : Runway, Ladakh

Location : Nyoma


Cores Extracted From Field….

150 mm, RBI‐81 Stabilized Base

20 mm, PMC



SDBC

RBI‐81 Stabilized Aggregate Base

RBI‐81 Stabilized Soil Sub Base



250 mm, RBI‐81 Stabilized Sub‐grade


Alchemist Touchnology LimitedAlchemist House, Building No. 23,

Nehru Place, New Delhi ‐ 110019

Phone: +91‐11‐40600800, Fax: +91‐11‐40600888

Website: www.rbigrade81.com

Thank You

Documents

“RBI Grade-81 – Pavement Material & Soil Stabilizer”