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Buddha Institute of Technology Group Members- Raj Kumar Gupta Vikash Singh Sujoy Kumar Vidyanta Shivakant Rishabh Kumar Srivastava Utkarsh Kumar Tripathi Project Guide- Prof. ALAK ROY

Design of highway (Flexible pavement)

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Page 1: Design of highway (Flexible pavement)

Buddha Institute of TechnologyGroup Members-Raj Kumar GuptaVikash SinghSujoy Kumar VidyantaShivakantRishabh Kumar SrivastavaUtkarsh Kumar Tripathi

Project Guide-Prof. ALAK ROY

Page 2: Design of highway (Flexible pavement)

IntroductionA hard smooth surface or layer that forms a road carriageway, airfield runway, vehicle park or other paved areas.

Page 3: Design of highway (Flexible pavement)

Types of PavementFlexible Pavement Rigid Pavement

Page 4: Design of highway (Flexible pavement)

Flexible Pavement Design

Page 5: Design of highway (Flexible pavement)

Wheel Load Transfer

Page 6: Design of highway (Flexible pavement)

Flexible Pavement ConstructionBase and Subgrade PreparationPavement Surface PreparationPlacementCompaction

Page 7: Design of highway (Flexible pavement)

TestingBitumen TestingAggregate TestingSoil Testing

Page 8: Design of highway (Flexible pavement)

Aggregate TestAggregate Impact ValueAggregate Abrasion ValueAggregate Crushing Value

Page 9: Design of highway (Flexible pavement)

Aggregate Impact Value- Passing through 12.5mm IS Sieve

– 100%- Retention on 10mm IS Sieve –

100%The sample should be oven-dried

for 4hrsAggregate impact value = (B/A) x

100%

Page 10: Design of highway (Flexible pavement)

Aggregate Abrasion ValueAggregate abrasion

value = (A-B)/B x 100%.

Page 11: Design of highway (Flexible pavement)

Soil TestDetermine The Maximum Dry Density And The

Optimum Moisture Content Of SoilDetermining Water Content In Soil - Oven Drying

MethodDetermine The Specific Gravity Of Soil

Page 12: Design of highway (Flexible pavement)

Determining Water Content In SoilOven Drying Method

W1=container weightW2=wet soil specimen in the containerW3=container with the dry soil sampleThe water content

w = [W2-W3] / [W3 -W1]*100%

Page 13: Design of highway (Flexible pavement)

Bitumen TestDetermining the Ductility Of BitumenDetermining Penetration of BitumenDetermining Flash And Fire Point Of Bitumen

Page 14: Design of highway (Flexible pavement)

Determining the Ductility Of Bitumen

Page 15: Design of highway (Flexible pavement)

Type of Flexible PavementBitumen Polymer Modified Bitumen

Page 16: Design of highway (Flexible pavement)

WASTE PLASTIC:

Waste plastic in the shredded form are used.

WASTE PLASTIC:

Waste plastic in the shredded form are used.

WASTE PLASTIC:

Page 17: Design of highway (Flexible pavement)

Difference Between Flexible and Rigid Pavement

Flexible pavement Rigid Pavement

Load is transfer by grain to grain. Low strength. Low life Span. High maintenance cost. Rolling of surface is needed. Damaged by oils and certain

chemicals.

Load transfer is not exists. High strength. Life span is more. Low Maintenance cost. Rolling of surface is not needed. No damage by oils and greases.

Page 18: Design of highway (Flexible pavement)

AdvantageFlexible Rigid

Repair of flexible pavement is easy.

Additional thickness added any time.

The flexible pavement is smooth.

Tolerates a great range of temperature.

Durability of rigid pavement is good.

Life cycle of rigid pavement is long.

Withstand repeated flooding and surface water.

Page 19: Design of highway (Flexible pavement)

DisadvantagesFlexible RigidLoses some flexibility and

cohesion with time.Needs resurfacing sooner

then PC concrete.Not normally chosen where

water is expected.The life of flexible pavement

is short.The maintenance cost is high

May lose skid surface with time.

May fault at transverse joints.

Page 20: Design of highway (Flexible pavement)

Thank You