GRC AS A CLADDING MATERIAL

GRC as a cladding material

• The materials have a good resistance for tension. That is the reason why Glass fibre is chosen as reinforcement for concrete. Right now, is used mostly for cladding buildings, lining, sewer pipe, shoulder of roads and etc...
• Compatibility of glass fibre with concrete or mortar helps us to use it easily in our daily project especially for facade of buildings, as we said AR-glass fibre that have good resistance to alkalinity that contains in cement (pH > 12.3) with high level.
• AR-glass fibre can control shrinkage cracks easily; it shows this property particularly in cladding purpose or rendering. Because of most important thing in GRC it is water: cement ratio maximum 0.35, which helps to control the shrinkage and bonding each other by glass fibre.
• GRC can be used as alternative material of natural stone, especially in those countries where stone is less or unavailable. Also for those countries that favour stone only, the cost is higher, but because of less maintenance one can return back this money.
• Changing GRC panel is very easy as compared to other cladding because of making GRC by panel and just installing on the site. Also if broken one panel can be repaired or removed and a new one can be put, but if stone or tile is broken, it is not easy to change.
• This material is eco-friendly material because it consumes less energy during production; one can use to control pollution and carbon dioxide which is dangerous to human life.
• GRC is a new growing industry in India, customer awareness is increasing and more projects have GFRC components.
• GFRC industry in India can be started anywhere. Existing manufactures do not have their units in city industrial areas.
• 9)   As of today GFRC cladding to building surface has emerged as main application on
• Account of reasons as below;
• Alternative cladding materials like glass, aluminium have not performed well in Indian climate leading to
•        leakages, warp pages, panels falling...etc.
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*Granite, marble and PCC (Precast Cement Concrete) panels are very heavy compared to GFRC panels leading to site handling problems; there are major procurement problems with granite and marble.

*With GRC claddings building heat losses are minimum compared to aluminium and glass cladding. Civil aviation authorities have already taken decision to go for GRC claddings on their airport buildings.

*Facility to provide, indicate shapes, curves and profiles.

*One can impart any finish like stone, heritage, acid wash, flame hardened...etc on GRC panels which is not possible in other materials.

*GFRC manufacturers work on turnkey basis from concept to installation, where as for other materials one needs more than one agency.

*Suitability in earthquake prone areas.

*By adding suitable additives, GRC panels can be made ‘Green’ which is not easily possible with other materials.

VARIOUS TEST RESULTS WITH AND WITH OUT GLASS FIBER

As stated in the hypothesis these values are obtained from the test conducted by P.N. Shakar  (presently a student of  the postgraduate program at Construction and Management, Department of Civil Engineering, Maharashtra Institute of Technology, Pune)

By conducting tests on various sizes of test specimens of sizes 150×150×150 mm

cubes,  150×300  mm  cylinders  and  100×100×500  mm beams were cast using different grade of concrete mixers as given in Table-1 and tested as per IS: 516 and 1199.

MATERIALS

Cement: white cement

     Coarse aggregate

 Crushed angular granite metal from a local source was used as coarse aggregate. The         specific gravity was 2.71, flakiness index of 4.58 percent and elongation index of 3.96.

   Fine aggregate

River sand was used as fine aggregate. The specific gravity and fineness modulus was 2.55 and 2.93 respectively

.Glass fibre

The glass fibres used are of Cem-FIL Anti-Crack HD with modulus of elasticity 72 GPa, Filament diameter14  microns,  specific  gravity  2.68,  length  12  mm  and having the aspect ratio of 857.1. The number of fibres per kg is 212 millon fibres.

 

 APPEARANCE?

In case of historical buildings if any damage occurs retrofitting with GFRC using grey cement

Cannot achieve same style, it is such biggest difficult task to achieve same aesthetic appearance that we want with grey cement. The innovative application white cement in GFRC we can achieve same aesthetic appearance that what actually we want. Time require for this retrofitting is less.

A balcony for room no.257 at hotel Taj Heritage was replaced by GRC. Original in RCC same old finish (100 years old) was achieved with same style. Austin Texas dwi lawyers .

          Balcony weight: 800 Kg.                                                       

Cost: cost 2,50,000 Rs.      

Duration for replacement: 30 days

CONCLUSION:

GFRC as an engineered material has excellent properties that can be conveniently used for many construction works and it is a suitable material for architects to give life to their imaginations as structures by properly using this flexible material. A properly designed, manufactured and installed GFRC system will provide an innovative and aesthetically pleasing appearance, while often reducing overall cost, onsite labour requirements and shortening construction schedules. Glass fibre reinforced concrete (GFRC) offers an endless variety of decorative and ornamental shapes and forms at affordable prices Mesothelioma attorney San Diego.