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Ferrocement Comparted With Reinforced Cement Concrete

FERROCEMENT

REINFORCED CEMENT CONCRETE

 * Consumption of cement generally
    500 to 750 kg per M³

 * Reinforcement 
     a) Wiremesh - woven : hexagonal, weided
         dia 0.5mm to 2.5mm, spacing 6mm to
         75mm Consumption 350 - 500 kg per M³. 
     b) Fibres - metallic, non-metallic -
         manmade & natural dia. 35g or
         0.3 x 0.4 mm. Consumption 1 - 3%. 

 * Cover to reinforcement - 2.5 mm to
    5 mm - Cover to fibres - nil. 

 * Fine aggregate - particle size 400 micron to 3mm. 
   
 * No coarse aggregate. 

 * Generally no shuttering. 

 * Admixtures are mostly used for workability,
    high strength, antishrinkage, waterproofing
    and pollution resistance. 

 * Minimum dimension 10mm and
    maximum 60mm or so. 

 * Homogenous isotopic material at the
    initial stage.
 
 * Fire resistant upto 750°C for a period of
    48 hours or even more. 

 * Dead weight of Ferrocement frame structure
    is 175 kg to 275 kg per M³. 

 * Uncracked section material generally.
    Generally not affected by carbonation,
    chloride penetration, etc.
    Autogenous healing should take place.
 * Consumption of cement generally
    100 to 300 kg per M³. 

 * Steel Reinforcement - dia. 6mm to 40mm -
    Consumption of steel 90-160 kg per M³. 

 * Cover to reinforcement - 12mm to 40mm. 

*  Fine aggregate - particle size varying
    from 400 micron to 4.75mm. 

 * Coarse aggregate - 12-35mm or more. 

 * Shuttering - wooden or steel. 

 * Admixtures such as water proofing,
    plasticisers, retarders, accelerators
    used, if required. 

 * Minimum dimension 75mm and above. 

 * Heterogenous material. 

 * Generally fire resistant upto
    200°C to 250°C for period of 3 to 4 hours. 

 * Dead weight of RCC frame structure is
    300 kg to 600 kg per M³. 

 * Cracked section material generally.
    Affected by carbonation, chloride
    penetration, etc. Autogenously
    healing may or may not take place.

 
Comparison With Reinforced  Cement Concrete
Sketches of R.C.C. & 
Ferrocement Sections
Ferrocement in 
Building Industry
Alternative to Steel Plates 
& Structurals
Tanks, Containers, Silos,
Effluent Treatment 
Plant Structures
 
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