Engineered Solution Provider in Geosynthetics

1
Engineered Solution Provider in Geosynthetics
STANDARDIZATION OF SPECIFICATIONS INDIAN AND
GLOBAL PERSPECTIVE
By M. VENKATARAMAN
2
NEW CHALLENGES

• In recent years, while providing a solution, the
  Engineer has to face increased challenges
• Various site constraints like space, alignments
  etc.
• Tight time schedules
• Ensure max. usage of local resources (Material
  Manpower), hence Cost effective!!
• Least environment impact
• Long term performance higher Cost benefit ratio
  over a larger period of time (Least maintenance
  cost)

3
SOLUTION !!!
USE OF APPROPRIATE GEOSYNTHETIC MATERIALS OFFERS
THE POSSIBILITY TO SOLVE OR DRASTICALLY REDUCE
THE PROBLEMS
4
GEOSYNTHETICS
GEOSYNTHETICS
CONCRETE STEEL
5
FUNCTIONS OF GEOSYNTHETICS

• Separation
• Filtration
• Reinforcement
• Drainage
• Containment

6
OUR PRODUCT RANGE
Geogrids (Uniaxial Biaxial)
Geotextiles
Woven
Nonwoven
Geosynthetic Clay Liners
Geonet
Geomembranes
7
OUR PRODUCT RANGE
Gabions
PVD
Steel Wire
Polymer Rope
Anco Drain
Boulder Net
GARMAT
8
OUR KEY SECTORS
GEOSYNTHETICS DIVN.
INFRASTRUCTURE
ENV.PROTECTION
ROADS
LANDFILL ENGINEERING
RAILWAYS
COASTAL PROTECTION
GROUND IMPROVEMENT
ROCKFALL PROTECTION
CANAL LINING
FLOOD CONTROL
9
PRODUCTS THEIR APPLICATIONS
10
WOVEN GEOTEXTILES
11
WOVEN GEOTEXTILES
Separator - Approach Embankment for Bridge across
Vasista, Godavari at Chinchinada, A.P. (N H 5A)3
12
WOVEN GEOTEXTILES
13
NONWOVEN GEOTEXTILES
14
NONWOVEN GEOTEXTILES
Protection Layer in Landfills, HZL,
Visakhapatnam, A.P
15
UNIAXIAL GEOGRIDS
16
UNIAXIAL GEOGRIDS
Geogrid Wraparound Wall at CH. 48 KM CH. 50
KM, Lucknow - Muzaffarpur National Highway
Project
17
BIAXIAL GEOGRIDS
18
BIAXIAL GEOGRIDS
Ground Improvement for Tank Foundation, HPCL,
Mundra, Gujarat
19
HDPE GEOMEMBRANE
20
HDPE GEOMEMBRANE
Landfill, HZL Visakhapatnam, A.P
21
POLYMER ROPE GABIONS
22
POLYMER ROPE GABIONS
23
STEEL GABIONS
24
GARMATTM
25
ANCO DRAIN
Anco Drain
MRPL, Mangalore
26
TECHNICAL SPECIFICATIONS

• Properties
• Polymer Composition, Structure Physical
• Properties
• Mechanical Properties
• Hydraulic Properties
• Survivability
• Installation Practices
• UV Resistance

27
TECHNICAL SPECIFICATIONS

• Present Scenario
• For any application, the technical specification
  includes all the properties as mandatory
  requirements irrespective of the function to be
  satisfied
• It is significant to specify the properties
  critical for the function

28
TECHNICAL SPECIFICATIONS
Eg Reinforcement application It is more
relevant to specify long-term strength strength
at 2 and 5 strain rather than Ultimate Strength
Reinforcement - 1
Load
Reinforcement - 2
(kN/m)
2
5
Strain ()
29
TECHNICAL SPECIFICATIONS

• Dictates the exact materials to be used in a
  project
• No guarantee that the best available product is
  delivered
• They focus on the Specifications and not on the
  Final Output (Performance)

30
STANDARDIZATION OF SPECIFICATIONS

• Aspects -
• Application
• Function
• Product

Specifications

• Primary - Main Properties

• Secondary - Min. Properties

• Any product which satisfies the Primary and
  Secondary specifications can be selected

31
STANDARDIZATION OF SPECIFICATIONS

• Eg As per IRCSP59-2002 -

Separation Filtration functions (unsaturated
soils)
AOS 0.6 mm, Max. Value
Permittivity 0.02 Sec-1,
Min. Value

• Subsequently, specifies minimum strength
  requirements
• (Type I, II and III) for a geotextile
  depending on
• Installation Damage

• Any geotextile with satisfies the criteria can be
  selected

32
STANDARDIZATION BASED ON APPLICATION FUNCTION
Application Functions Products Main Properties
Roads, Retaining Walls Separation Filtration Woven Nonwoven Geotextile AOS Permittivity
Roads, Retaining Walls Drainage Nonwoven Geotextile (needle-punched) AOS In plane permeability
Roads, Reinforced Wall Embankments Reinforcement Woven Geotextile Uniaxial Geogrids Creep strength Secant Moduli _at_2 and 5 strain
33
STANDARDIZATION BASED ON APPLICATION FUNCTION
Application Functions Products Main Properties
Pavements - Stabilization Reinforcement Biaxial and Triaxial Geogrids -Secant Moduli _at_ 2 5 strain- Aperture Stability- Radial Stiffness- Junction Stiffness - Manufacturing Process
Railways - Trackbed Stabilization Reinforcement Biaxial and Triaxial Geogrids -Secant Moduli _at_ 2 5 strain- Aperture Stability- Radial Stiffness- Junction Stiffness - Manufacturing Process
Landfill Lining Impervious Geomem -brane -Manufacturing Process - Raw Material- Thickness Tolerance- MFI OIT- Width of he Roll
34
CERTIFICATION WHY ??
CONFIDENCE IN SELECTION OF PRODUCTS BY
SPECIFIERS / CLIENTS
35
CERTIFICATION PROCESS

• Comprehensive Assessment
• - Laboratory Testing
• - On-Site Evaluations
• - Production Inspection
• - Consistency in Material Quality

36
BENEFITS OF CERTIFICATION

• Independently verified technical specifications
• Product scope / compliance with relevant
  materials / system
• Tests highest level of accuracy
• Specifies the durability of the product in the
  system

37
BENEFITS OF CERTIFICATION

• Design considerations
• -Long-term strength _at_ different temperatures
• -Installation damage factor for different
  
• size of fill material
• -Factor for Environmental effects (pH range)
• -Factor for manufacturing, extrapolation
  
• database

38
BENEFITS OF CERTIFICATION

• Installation guidance
• handling of materials
• Limitation / Risks if any
• Monitoring of Product manufacturing during the
  tenure of the Agrément

39
PERFORMANCE RELATED SPECIFICATIONS (PRS)

• Standardization of Specifications Certification
  eventually will help to develop Performance
  Related Specifications (PRS)
• Performance Related Specifications Why ??

40
PERFORMANCE RELATED SPECIFICATIONS (PRS)

• Performance specifications describe how the
  finished product should perform over time
• It is the bridge between design, construction
  quality, and long-term product performance
• Specifications that use quantified quality
  characteristics and life cycle cost relationships
  correlated to product performance.

41
PERFORMANCE RELATED SPECIFICATIONS (PRS)

• Performance Parameters
• Depends on the Product and the application
• Governing Factors
• End Result Elements
• - Bearing capacity, stability, settlements,
  cracking, etc.,
• Functional Requirements
• Smoothness, friction, etc.,

42
PERFORMANCE RELATED SPECIFICATIONS

• Fundamental Requirements

• Critical Quality Characteristics
• Measurable and tied to product performance
• Prediction Tools (modelling and databases)
• Verified, calibrated, validated, and made
  appropriate for local conditions
• Life Cycle Cost Analyses (LCCA)
• To compare the as-designed product section to the
  as-built section

43
PERFORMANCE RELATED SPECIFICATIONS

• Benefits

• Improved link between Design and Construction
• Improved and focused testing on characteristics
  related to performance
• Promoting best practices to improve quality
• Improving Flexibility, Efficiency and Value of
  the system

44
PERFORMANCE RELATED SPECIFICATIONS

• Benefits

• Adding private sector innovation
• Allow contractors more freedom to implement their
  own procedures, choose their own equipment, and
  conduct site-specific process control programs
• Transferring risk away from the owner

45
PERFORMANCE RELATED SPECIFICATIONS

• Determining good performance criteria and
  measures
• Potential impacts to contractors performance
  bonds
• A drastic change in corporate culture
• Openness and Trust
• Change of Industry mind set
• Focus on solution rather services
• Delivery driven by value not cost

• Barriers

46
WORLDWIDE SCENARIO

• Premier Institutes and Agencies implementing PRS
• FHWA
• AASHTO
• European Union
• UK
• DOT, California (Caltrans)
• Winconsin, DOT experienced 36 improvement in
  highway ride quality 10 savings in LCC using
  PRS in Pavements

47
ROAD MAP TO THE FUTURE
VISION Better translation of design and
performance requirements into specifications
MISSION Establish Performance Related
Specifications
48
ROAD MAP TO THE FUTURE

• GOALS
• Identify relationships that link design and
  
• construction with product performance
• Develop and Implement Performance
• Specifications

DRIVING FORCE
Freedom to innovate with accountability to deliver
49
REFERENCES

• IRC SP 59-2002, Guidelines For Use of
  Geotextiles in Road Pavements and Associated
  Works, Indian Roads Congress, 2002.
• Developing Performance Specifications -
  Consultation response analysis report, January
  2004 http//www.highways.gov.uk/roads/3060.aspx

50
REFERENCES

• INF02 Adopt Performance and Warranty
  Specifications to Improve the Quality of Highway
  Construction http//cpr.ca.gov/CPR_Re
  port/Issues_and_Recommendations/Chapter_4_Infrastr
  ucture/INF02.html
• Performance Specifications Strategic Road Map,
  2004
• http//www.fhwa.dot.gov/construction/pssr04tc.cfm

51
THANK YOU

• M.Venkataraman
• Advisor, Geosynthetics Division,
• Garware-Wall Ropes Ltd.
• Plot No. 11, Block D-1, M.I.D.C. Chinchwad, Pune-
  411019, India.
• Phone [phone]
• Fax [phone].
• Email geo_at_garwareropes.com
• 
  mvenkatraman_at_garwareropes.com
• Website www.garwareropes.com