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11/25/2013

1
Ferro cement is a form of reinforced
concrete using closely spaced
multiple layers of mesh and/or small
diameter rods comp...
11/25/2013

3


Cement mortar mix



Skeleton steel



Steel mesh reinforcement or Fibrereinforced polymeric meshes

11/25/2013

4


•OPC and fine aggregate matrix is used



•The matrix constitutes 95% of the
composite and governs its behavior



•s...


Chemical admixtures used in ferrocement serve
purposes of

•

water reduction, with strength and reduces

permeability;...


Water should be potable,



clean, and free from organic matter silt, oil, sugar, chloride and acidic
material



pH ...


•Sand: cement ratio (by mass) 1.5 to 2.5



•Water: cement ratio (by mass) 0.35 to
0.60

11/25/2013

8








Forms the skeleton of the structure
3 to 8 mm steel rods are used
Used in the form of tied reinforcement or
w...










Consists of galvanized steel wires of diameter
0.5 to 1.5 mm, spaced at 6 to 20mm centre to
centre
Availabl...
11/25/2013

11


It is a very durable, cheap and versatile material.



Low w/c ratio produces an impermeable
structures



less shrin...
RC IN TENSION

11/25/2013

FERRO CEMENT IN TENSION

13


TANKS, CONTAINERS AND SILOS

. FLOORS AND ROOFS
. HEAVY DUTY FLOORS TILES
. WATERPROOFING
. MANHOLE COVERS
. WALL CUPBO...
•

ANTICORROSIVE MEMBRANE TREATMENT
. FERROCEMENT BUILDINGS
. FERROCEMENT DUCTS
. REHABILITATION OF STRUCTURES
. CHEMICAL ...


RURAL APPLICATIONS



MARINE APPLICATIONS



ELEVATION TREATMENT



FIRE RESISTANT STRUCTURES



SOIL STABILISATION...


SEWER LINES



BRIDGE



FOOT BRIDGE



STRENGTHENING OF RCC STRUCTURES



SULPHATE RESISTANT CEMENT SAVING



PRE...


Hand plastering



Semi- mechanised process



Centrifuging and



Guniting

11/25/2013

18
THANK YOU

11/25/2013

19
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Ferrocement

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Ferrocement

  1. 1. 11/25/2013 1
  2. 2. Ferro cement is a form of reinforced concrete using closely spaced multiple layers of mesh and/or small diameter rods completely infiltrated with, or encapsulated in, mortar. 11/25/2013 2
  3. 3. 11/25/2013 3
  4. 4.  Cement mortar mix  Skeleton steel  Steel mesh reinforcement or Fibrereinforced polymeric meshes 11/25/2013 4
  5. 5.  •OPC and fine aggregate matrix is used  •The matrix constitutes 95% of the composite and governs its behavior  •sand occupies 60 to 75% of the volume of the mortar  •Plasticizers and other admixtures are used 11/25/2013 5
  6. 6.  Chemical admixtures used in ferrocement serve purposes of • water reduction, with strength and reduces permeability; • Air entrainment, which increases resistance to freezing and thawing; • suppression of reaction between galvanized reinforcement and cement 11/25/2013 6
  7. 7.  Water should be potable,  clean, and free from organic matter silt, oil, sugar, chloride and acidic material  pH equal or greater than 7 11/25/2013 7
  8. 8.  •Sand: cement ratio (by mass) 1.5 to 2.5  •Water: cement ratio (by mass) 0.35 to 0.60 11/25/2013 8
  9. 9.      Forms the skeleton of the structure 3 to 8 mm steel rods are used Used in the form of tied reinforcement or welded wire fabric Used to impart structural strength in case of boats, barges etc Reinforcement should be free from dust, rust and other impurities 11/25/2013 9
  10. 10.      Consists of galvanized steel wires of diameter 0.5 to 1.5 mm, spaced at 6 to 20mm centre to centre Available as woven/interlocking mesh and welded mesh Welded wire mesh has hexagonal or rectangular openings Expanded-metal lath is also used Made from carbon, glass etc. 11/25/2013 10
  11. 11. 11/25/2013 11
  12. 12.  It is a very durable, cheap and versatile material.  Low w/c ratio produces an impermeable structures  less shrinkage, and low weight.  high tensile strength and stiffness  better impact and punching shear resistance  undergo large deformations before cracking or high deflections 11/25/2013 12
  13. 13. RC IN TENSION 11/25/2013 FERRO CEMENT IN TENSION 13
  14. 14.  TANKS, CONTAINERS AND SILOS . FLOORS AND ROOFS . HEAVY DUTY FLOORS TILES . WATERPROOFING . MANHOLE COVERS . WALL CUPBOARDS 11/25/2013 14
  15. 15. • ANTICORROSIVE MEMBRANE TREATMENT . FERROCEMENT BUILDINGS . FERROCEMENT DUCTS . REHABILITATION OF STRUCTURES . CHEMICAL RESISTANT TREATMENT . IRRIGATION STRUCTURES 11/25/2013 15
  16. 16.  RURAL APPLICATIONS  MARINE APPLICATIONS  ELEVATION TREATMENT  FIRE RESISTANT STRUCTURES  SOIL STABILISATION  PIPES 11/25/2013 16
  17. 17.  SEWER LINES  BRIDGE  FOOT BRIDGE  STRENGTHENING OF RCC STRUCTURES  SULPHATE RESISTANT CEMENT SAVING  PRE-CAST FERROCEMENT STRUCTURES 11/25/2013 17
  18. 18.  Hand plastering  Semi- mechanised process  Centrifuging and  Guniting 11/25/2013 18
  19. 19. THANK YOU 11/25/2013 19

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