Why FRP


Benefits of FRP

  • Corrosion Resistance
  • Transparent to RF Transmission
  • Non Conductive and Non Magnetic
  • Light Weight and Manageable
  • High Strenght to Weight Ratio
  • Long Support Span
  • Full Ventilation
  • Total life cycle cost is lower than any conventional material
  • U.V. Protected
  • Fire Retardant Property

COMPARISION BETWEEN FRP AND OTHER MATERIALS

No. Compare Fiberglass Structural Shapes Steel A-36 Carbon Aluminium
1 Corrosion Resistance FRP is available in either polyester or Vinyl Ester Resin for resistance to a broad range of chemicals. Surfacing Veil and UV additives improve weatherability. Subject to oxidation and corrosion. Requires painting or galvanizing for many applications. Can cause galvanic corrosion. Corrosion resistance can be increased through anodizing or other coatings
2 Weight Lightweight- Weight 25% as much as steel and 70% of Aluminium on density. Could require lifting equipment to move and place. 1.25 times higher then FRP
3 Electrical Conductivity Low conductivity properties - high dielectric Capability. Low thermal conductivity 4(BTU/SF/HR/Fº/IN) Conducts electricity. Potential shock hazard. Thermal conductivity 260-460 (BTU/SF/HR/Fº/IN) Conduct electricity - grounding potential
4 Thermal Conductivity Insulates-Low thermal conductivity (4 BTU/SF/HR/Fº/IN). Low thermal coefficient of expansion (7(IN/IN/Fº)10º) High thermal conductivity 260-460 (BTU/SF/HR/Fº/IN) Heat conductor-high thermal conductibity (150 BTU/SF/HR/Fº/IN). Thermal coefficient of expansion 11-13 (IN/IN/Fº)10º
5 Strength FRP has a high strength to weight ratio and Pound for pound is stronger than steel in length wise direction. FRP has 86% of yeild strength than aluminium in lengthwise direction. Tensile strength-30 KSI, CW-7KSI, Ultimate flexural strength LW-30 KSI, CW-10 KSI Homogeneous material. Tensile Strength-60 KSI, Yield Strength-36 ksi. Homogeneous material. Flextural Strength (FU) 35 KSI
6 Stiffness Modulus of elasticity LW-2.5 X 10º psi, CW-0.8 X 10º psi. Will not permanently deform under working load. Modulus of elasticity 29 x 10º psi Modulus of elasticity 10 x 10º psi
7 Impact Resistance Glass mat in pultruded parts, distributes impact load to prevent surface damage even in sub - zero temperatures. Will not deform under impact Can permanently deform under impact Can permanently deform under impact
8 EMI/RFI Transparency Transparent to radio waves. EMI/RFI transmissions, used for radar and antennae enclosures and supports. Can interfere with EMI/RFI transmissions. Highly Reflective.
9 Fabrication Pultruded Fibreglass can be field fabricated using simple carpenter tools with carbon or diamond tip blades. Lightweight for easier erection and installation. Often requires weilding and cutting torches. Heavier material requires special handling equipmemt to erect and install. Good machinability - weilding, brazing, soldering or mechanical joining.
10 Finishing and color Pigments added to the resin provide color throughtout the part. Special colors available. Composite design can be customized for required finishes. Pigments added to the resin provide color throughtout the part. Special colors available. Composite design can be customized for required finishes. Silver color, Other colors requires prefinishes, anodic coatings and paints. Mechanical, chemical and electroplated finishes can be applied.
11 Cost Slightly higher tooling costs, price per lineal foot marginally higher. Lower initials cost. Extrusion tooling is relatively inexpensive. Part price comparable or slightly lower.
12 Density(g/cc) 1.6 to 2 7.8 2.7
13 Tensile Strength(Mpa) 30 to 75 410 to 480 80 to 430
14 Tensile Modulus(Gpa) 7 to 19 210 70
15 Elongation at Break % 0.4 to 1.7 20 to 35 3 to 18
16 Flextural Strength(Mpa) 100 to 125 200 (Yield) 65 to 220 (Yield)
17 Flextural Modulus(Gpa) 6 to 15 210 70
18 Izod Impact strength notched(KJ/M²) 20 TO 50 ….. …..
19 Co-efficient of thermal expansion(ºCx10ˆ(-6)) 18 TO 25 11 to 14 22 to 24
20 Co-efficient of thermal Conduct(W/mºC) 0.22 to 0.3 46 140 to 190
21 Temperature Index(BS 6853 365 ºC 420 ºC 420 ºC

Corrosion

  • Corrosion is a curse – especially on metals & concrete.
  • Anything exposed to the elements (the sun and the rain and the dust) will corrode.
  • Corrosive service environments – acids, alkalis, salts, even water add to the peril – in liquid or gaseous form, singly or in cahoots.
  • Chloride Induced Corrosion, Roof of 13 Year Old Swimming Pool Collapses, Switzerland

The Cost of Corrosion
  • Recurring Repairs
  • Periodic Painting
  • Frequent
  • Replacements
  • DOWNTIME
  • Loss in productivity
  • SAFETY HAZARDS

Areas under attack
  • Fencing
  • Cable Tray
  • Flooring
  • Ladder, Stair, Walkway, Handrail
  • Storage Area
  • Loss in productivity
  • Drain
  • Sewage Handling
  • Water Treatment Plant
  • Cooling Tower
  • Utilities – Motor Canopy, Gear Canopy
  • Electrical Installation

ACMA of USA says

The Problem

Corrosion of steel is a major cause of infrastructure degradation. Solving this problem is a major challenge for the engineering community.


The Solution

Replace steel/concrete with a material that does not corrode.


The Right Material

Fiber Reinforced Plastic [FRP] – the youngest among classes of materials, and a wonder class at that


FRP – the smart material

  • Corrosion resistant, no rusting
  • Resistant to moisture
  • Resistant to biological attack
  • Stronger than aluminium, even steel
  • Lightweight yet durable
  • Fire retardant
  • Zero maintenance
  • No scrap value → no pilferage
  • Integrated construction → no water leakage through joints
  • UV resistant
  • Machine built – dimensionally consistent and accurate
  • Quality independent of fabrication skills
  • Even complex shapes, inserts, holes, ribs, bosses etc straight out of the mould, no tedious fabrication
  • Automated manufacturing → fast deliveries
  • Fatigue resistant, no creep / warpage → dimensionally stable
  • Easy to install
  • In-built safety
  • Quick, inexpensive development; prototyping possible
  • High impact strength → no damage in transit
  • Electrically and thermally non-conductive
  • EMI and RFI transparent
  • Benign environmental footprint
  • Sleek look + pigmented finish → aesthetically pleasing

Filament Winding

  • Resin - impregnated continuous fibers are wrapped around a rotating mandrel that has the internal shape of the desired FRP product; the resin
    is then cured and the mandrel removed
  • The fiber rovings are pulled through a resin bath immediately before being wound in a helical pattern onto the mandrel
  • The operation is repeated to form additional layers, each having a criss-cross pattern with the previous, until the desired part thickness has been
    obtained

Other Customised Products

ACMA

Composite grating software

Composite Rebars

Composite Rebars

Composite Rebars

Composite Rebars

Corrosion

Corrosion

Corrosion

Corrosion

Corrosion

Corrosion

Corrosion

Filament

FRP Fencing

FRP Fencing

Frp & GRP tank pipe

Frp & GRP tank pipe

Grating

Heavy Duty Platform

Pole Mounted Distribution Box

Single Phase Distribution Box

Three Phase Distribution Box

Transformer Shield

Transformer Shield

Transformer Shield

Transformer Shield

Trench Cover

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