Top Banner
CellFilled Concrete pavement (flexibleConcrete Pavement) Prof.B B PANDEY Advisor, Sponsored Research and Industrial Consultancy Civil Engineering Department IIT Kharagpur
41

Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Mar 13, 2020

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Cell‐Filled Concrete pavement(flexible‐Concrete Pavement)

Prof.B B PANDEYAdvisor, Sponsored Research and 

Industrial ConsultancyCivil Engineering Department

IIT Kharagpur

Page 2: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

OBJECTIVE 

A  VILLAGE  ROAD

1   LONG LASTING (Permanent asset)

2  LOW INITIALCOST

3  MAINTENANCE FREE

4  EMPLOYMENT GENERATION

( Labour component can be 40% of total cost worked out by M Pradesh for MGNAREGS) 

Page 3: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

What is a Flexible‐Concrete(cell‐filled)  pavement?

GSB/CTB/WBM

Cells filled with Compacted CC

formwork of Recycled HDP,LDP 150mmx150mmx100mm/ 200mmx200mmx100mm

Page 4: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Limited rotation at the interface of two blocks takes place 

If foundation settles, the flexible –rigid pavement conforms to the shape of the foundation

Page 5: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

MATERIALS FOR CELL FILLS

1. Grouted concrete(GC)

2. Roller compacted concrete(RCC)

3. Cement concrete(CC)

4. 50% M10 and 50% M30(Karnatka)

Page 6: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

CELLS FILLED WITH SINGLE SIZE AGGREGATES

AFTER LEVELLING, AGGREGATES ROLLED BY 6‐8TON ROLLER

CEMENT‐SAND MORTAR(1:1 BY VOLUME) IS VIBRATED INTO THE AGGREGATES BY PLATE VIBRATOR

Page 7: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 8: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 9: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

PAVEMENT AFTER ROLLING

CELL WALLS GET DEFORMED

AFTER GROUTING OF MORTAR, PAVEMENT SURFACE CAN BE OPENED TO LIGHT TRAFFIC AFTER 24 HOURS. CURING CONTINUES

v

Page 10: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Subbase

water vapour

Gap between blocks due to shrinkage is 10 to 20 micron. Water can not enter from top. Water vapor can escape from bottom releasing pore water pressure.Fines can not be pumped up

Page 11: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

CONSTRUCTION OF A ROAD IN A VILLAGE IN WB in 2004‐2005

(SITE NO 1)(Funded by IIT KGP)

FAILED TO GET FINANCIAL SUPPORT FROM CMA/MORD AND 

OTHERSIIT invested about 15‐20 lakhs at 

different stages(INDIAN PATENT IS AWAITED)

Page 12: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

EXISTING PAVEMENT CONSISTED OF 

Boulder soling  topped with Murrum ‐ 100 to 150mm thick, Soil CBR=5

3.00m

Traffic:     about 50 Bullock carts and motorized vehicles per day and. 4 to 5 trucks per day

Page 13: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

3.0M

3.80M

5.50M

Existing embankmentWidened

part

Hard shoulder of laterite boulder

0.85m wide

Page 14: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 15: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

CELL FILLED PAVEMENT UNDER CONSTRUCTION

Page 16: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 17: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

COMPACTION OF CONCRETE BY PLATE VIBRATOR                           

Page 18: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

COMPACTION OF CONCRETE  BY A PAN VIBRATOR

Page 19: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

CURING OF CONCRETE BY WET PADDY STRAW

Page 20: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

VIEW OF FINISHED SURFACE

Page 21: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 22: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

FALLING WEIGHT DEFLECTOMETER

Page 23: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

ELASTIC MODULUS OF CELL FILLED CONCRETE LAYER

3500 MPa TO 5000MPa

Long term modulus for design:2000 MPa  

Page 24: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Construction at Site No.2(funded by IIT)

Page 25: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 26: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 27: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Zero slump concrete

Page 28: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 29: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Site No.3 at IIT Kharagpur

Page 30: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 31: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Construction at Doddaballapur in KarnatakaSite No.4

( Constructed in 2007‐2008 by Panchayat Raj Engineering 

Department)Performance –Excellent as on 10th

February 2012Traffic on Main Road ‐35 sand 

loaded trucks/day( Load about 35T)

Page 32: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 33: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 34: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 35: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

1 Site 5 in West Bengal2 Design traffic       15 trucks per day3 Thickness of GSB= 175mm4 Cell concrete=100mm5 Embankment height of clay ‐‐ 8m with ponds on either side6 Formation width‐5m only7 Attracted traffic=300 trucks from quarry    weighing over 50 tons per day—Performance‐ foundation failure

Page 36: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 37: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Cells  of depth h/3

Plastic strip     1mm thick

Page 38: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted
Page 39: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Size of panel    500mx 500m Interlocking due to cracks caused by traffic and contraction

75mm thick Concrete sufficient

h/3

Page 40: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

Technology transferred    to following states

(1)Madhya Pradesh(MGNAREGS)  for internal village roads

(2)Bihar(Engineers from PMGSY) 

(3)Karnataka(  partly) to PRED 

Page 41: Cell Filled Concrete pavement (flexible Concrete Pavement)pmgsy.nic.in/cellfilled.pdfWhat is a Flexible‐Concrete(cell‐ filled) pavement? GSB/CTB/WBM Cells filled with Compacted

THANK

 YOU