Pros and Cons of GRC-GFRC
GRC (Glass Reinforced Concrete) or GFRC (Glass Fibre Reinforced Concrete) is a material in the building industry, reputed for its versatility and utility. GRC has its own advantages and disadvantages. A GRC jali manufacturer can easily point out details.
Advantages over plastic, concrete or steel are:
- It is lightweight: Though GRC has same density as concrete, products created out of it are several times lighter because of the 10-15 mm, thin skin thickness it entails. A concrete cladding panel made from 100 mm thick precast concrete will weigh more than double that made of GRC. Thus, most GRC products can be carried by hand, a factor much in its favour in many countries.
- Appearance: GRC is highly flexible in manufacture and design, which makes possible to re- create many architectural features and styles. Any details of surface can be reproduced using GRC, and it can assume appearance of several materials like marble, terracotta, slate or stone. Carved stone work is expensive as it needs special skills and is a slow process. GRC can copy the look of stone work, and it can be fashioned into thin parts, which are easy to handle and fix.
- Cost effective: GRC products are much cheaper than other building materials.
- Strong: GRC has high tensile strength and impact strength in comparison to plain concrete due to the presence of glass fibre.
- It is versatile: It can be made into different textures, colours, surface finishes and patterns. It can assume any shape.
- Chemical resistant: For instance, it has better resistance to chloride penetration than steel.
- It is durable: It does not corrode or rust.
- Shrinkage: It has better properties of shrinkage than plain concrete.
- Sound: It has better acoustic properties.
- Inorganic: It is inorganic and fire resistant.
- Low permeability: This increases resistance to water or air pollution.
- Green value: It is environment-friendly.
Limitations of GRC:
- It is more costly than concrete.
- Over long period of time, GRC may lose its strength, a point to be noted at design stage.
- Forward planning is needed as it is made pre-cast rather than on site.
These are some of the pros and cons of GRC.