Di i i l R i Divisional Review – GeotecGeotec ca g ee g s ... · Major Achievements Major Achievements –– 20112011--1212 Ground Improvement • Developpqp yment of NDT Equipment

Di i i l R i Di i i l R i Divisional Review Divisional Review ––Geotechnical Engineering DivisionGeotechnical Engineering DivisionGeotec ca g ee g s oGeotec ca g ee g s o

Major Achievements Major Achievements –– 20112011--1212

Use of Waste & Marginal Materials

• Performance Monitoring of Roads Constructed using

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Copper Slag• Feasibility Study on PhosphogypsumFeasibility Study on Phosphogypsum• Test Track Studies – Jarofix • Superfine Copper slag• Cinder – Characterisation and Geotech Investigationg• Fly ash – Vedanta IPP

P t ti M i l M t i l t IRC & NRRDA • Presentations on Marginal Materials at IRC & NRRDA

Major Achievements Major Achievements –– 20112011--1212

Disaster Management

• Network Project – Engineering of Structures Against

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j g g gNatural and Other Disasters• Investigating the role of Geology and Geomorphology in Slope Stabilityg g gy p gy p y• Preparation of Guidelines for Road Construction in Cyclone prone Areas

• Remedial Measures for Lukhbir Slide (Sikkim)( )• Site Stabilisation at Diglipur

G id li f L d lid M t • Guidelines for Landslide Management

Major Achievements Major Achievements –– 20112011--1212

Ground Improvement

• Development of NDT Equipment for Field Density

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p q p y• Road Embankment in Tidal Areas of Bhuj

St di C i l St bili JGRS & St bili• Studies on Commercial Stabilisers – JGRS & Stabilig• Design of Filter material & Capillary Cut-off Material

Major AchievementsMajor Achievements

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2008‐09 209‐10 2010‐11 2011‐2012

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Plans for 2012Plans for 2012--1313• 12th FYP Activities

I ti T h l i f Utili ti f t & M i l t i l i R d • Innovative Technologies for Utilisation of waste & Marginal materials in Road Construction

• Engineering of Landslide Disaster Mitigation and Post Disaster Shelter g g gPlanning

• Quality Audit of Lucknow-Muzaffarpur road (NH-28)y p ( )• Reliability based Risk mapping of Landslides• Optimising Construction Cost of PMGSY Roads using • Optimising Construction Cost of PMGSY Roads using

Locally Available Materials• Development of Technology for Use of Fly Ash as an

Alternate Material in Pavement Construction Through Accelerated Pavement Testing

Plans for 2012Plans for 2012--13 13 ((ContdContd))

• Preparation of Guidelines on Landslide Management• Studies of Waste / Marginal Materials• In-House ProjectsIn House Projects

Innovative Technologies for Utilization of Waste and Innovative Technologies for Utilization of Waste and Marginal Materials in Road Construction (12Marginal Materials in Road Construction (12thth FYP)FYP)Innovative Technologies for Utilization of Waste and Innovative Technologies for Utilization of Waste and Marginal Materials in Road Construction (12Marginal Materials in Road Construction (12thth FYP)FYP)Marginal Materials in Road Construction (12Marginal Materials in Road Construction (12 FYP)FYP)Marginal Materials in Road Construction (12Marginal Materials in Road Construction (12 FYP)FYP)

LIST OF TASKSLIST OF TASKS Task 10.1Material survey and characterisation of

abundantly available waste and marginal materials in selected study areas (Task Leader: Sh.A.K.Sinha)

Task 10.2: Utilization of industrial wastes for mechanically stabilised earth-wall applications (Task leader: Sh.P.S.Prasad)

Task 10.3: Structural design of embankment and g fpavement crust with waste and marginal materials for selected study areas (Taskleader: Dr Vasant G Havanagi )y ( g )

Objectives and Scope (10.1) Objectives and Scope (10.1) Objectives and Scope (10.1) Objectives and Scope (10.1) j p ( )j p ( )j p ( )j p ( )Material survey, information collation and

f d b / l preparation of data-base on waste/ marginal materials from selected areasCharacterisation of such locally available

materialsmaterialsPreparation of data-base in GIS

Platform

Objectives and Scope (10.2) Objectives and Scope (10.2) Objectives and Scope (10.2) Objectives and Scope (10.2) j p ( )j p ( )j p ( )j p ( )Material characterisation for using wastes as

RE ll b kf ll lRE wall backfill materialStudies on interaction between

reinforcing elements and backfill materialmaterialDesign of RE walls and reinforced slopes using

such waste backfill materials

Objectives and Scope (10.3) Objectives and Scope (10.3) Objectives and Scope (10.3) Objectives and Scope (10.3) j p ( )j p ( )j p ( )j p ( )Review of Pavement design procedures and

l f d kmaterial specifications in road worksOptimisation of road construction cost by p f y

maximising local material usageGuidelines for usage of waste or Guidelines for usage of waste or

marginal materials in road works for selected study areas

Marginal MaterialMarginal Materialgg ‘Any material not wholly in accordance with the

ifi ti i i t i f l d specification in use in a country or region for normal road materials but can be used successfully either in special

diti d ibl b f li ti conditions, made possible because of climatic characteristics or recent progress in road techniques or

ft bj ti t ti l t t t’ after subjecting to particular treatment’ From: PIARCFrom: PIARC

‘Aggregate produced from a weathered or weathering prone rock, which after processing contains moderate to p , p ghigh plastic fines, is susceptible to weathering and when compacted has soaked CBR value between 40 to 100%’p

Brennan, 1984Brennan, 1984

Marginal MaterialMarginal MaterialMoorumMoorum

ShaleShaleShaleShale

LateriteLateriteGravelsGravels BrickbatsBrickbatsGravelsGravels BrickbatsBrickbats

Why Use Marginal Materials ?Why Use Marginal Materials ?y gy g Road construction material selection – Fitness for purpose Neither sub-standard nor wastefully above the standards

demanded by their engineering task Wide range of low grade materials used successfully Traffic is low Environment understood and accounted QC is adequateQC is adequate Maintenance is timely

From: Cook J R, Bishop E C, Elsworth N E, TRLFrom: Cook J R, Bishop E C, Elsworth N E, TRL

Present Guidelines on Locally Available MaterialsPresent Guidelines on Locally Available MaterialsS l t d l il f b d Selected granular soil for subgrade

Stabilisation of local soilB i k d b t b i k t l Brick and over burnt brick metal

Industrial wastesSt t l

IRC SP:72, Clause 5.2IRC SP:72, Clause 5.2

Stone metal Naturally occurring softer aggregates like Kankar, Moorum

Material Occurrence State

Manner of Using Test/ Quality Requirement

Blocks or large discrete particles

As WBM without screenings/ filler

Wet AIV not to exceed 50, 40 or 30

Graded form without much soil

As GSB layer or for base/ surfacing

PI < 6 base/ sub-base, 4 – 10 for surfacing

Di t ti l S il G l i b CBR d PI it i Discrete particles mixed with soil

Soil-Gravel mix: sub-base, base/ surfacing

CBR and PI criteria and Well graded

Present Guidelines for Marginal MaterialsPresent Guidelines for Marginal MaterialsS ifi ti G d ti Pl ti it d Sh St th Specifications – Gradation, Plasticity and Shear Strength

Required to meet specification thresholds Passing 75 micron sieve to be less than 8 per cent PI to be less than 6 CBR to be 80 per cent

Material Specifications for high traffic density NH/ SH are Material Specifications for high traffic density NH/ SH are similar to low traffic volume rural roads N diff b t ti l d i l t i l No difference between conventional and marginal material – Specification requirements are same

Materials specifications do not consider rainfall or traffic or type of material available

Quality Assurance Handbook for Rural Roads Quality Assurance Handbook for Rural Roads –– NRRDA NRRDA

Way ForwardWay Forwardyy Need to collect and analyse information on international

practices and norms on use of marginal materialspractices and norms on use of marginal materials Understanding marginal materials available in our country

d th i i i ti i b tt and their engineering properties in a better way Preparation of realistic design and construction guidelines

on marginal material usage for road works To adequately consider issues like traffic, rainfall, water q y , ,

logging, availability of materials, etc in the guidelines R&D work on usage of such materials field demonstration R&D work on usage of such materials, field demonstration

projects, collection of performance data etc.

DeliverablesDeliverablesDeliverablesDeliverablesData-base on characterisation of locally

l bl l d d available materials in study area and Design charts for reinforced earth walls and g f f

reinforced slopes with waste materials as backfillbackfillDesign guidelines for optimum usage of waste/

marginal materials from selected areas in road works

Objectives and DeliverablesObjectives and DeliverablesObjectives and DeliverablesObjectives and Deliverables Objectives and Scope of the Work Package

Development of design specifications for utilization of waste/marginal materials for embankment, sub base, base and wearing courses.

Evaluation of the coefficient of interaction between geosynthetics, G.I. strips and t o of t e coeff c e t of te ct o bet ee geosy t et cs, . . st ps d industrial wastes for reinforced earth wall applications.

Standardization of pavement design procedures for utilization of waste/marginal materials for road constructionmaterials for road construction.

Deliverables

Physical, chemical, geotechnical and strength characteristics.

Embankment designs under different saturation and seismic conditions.

Design specifications for use of wastes in sub base, Base and wearing courses.

Cost effective pavement designs with waste /marginal materials Cost-effective pavement designs with waste /marginal materials.

Design Charts for reinforced earth wall and reinforced earth slopes

Design guidelines for utilization of waste/marginal materials for road construction

Technology

Technology Application:

Th i ti p t d i t h i ld b it bl ppli d t t ith The existing pavement design techniques would be suitably applied to come out with an economically viable design guidelines for utilization of waste/marginal materials.