F.A.Q

GFRP Envirobar or GFRP rebar, or Glass Fiber Reinforced Polymer rebar, is a type of reinforcing bar made from composite materials. It consists of:

1. Glass Fibers: These provide the primary strength and stiffness to the rebar.
2. Polymer Matrix: Typically made of epoxy, vinyl ester, or polyester, the polymer binds the glass fibers together and protects them from environmental damage.

Unlike traditional steel rebar, GFRP rebar is non-metallic, which gives it unique properties that make it ideal for concrete reinforcement.

GFRP offers several advantages over traditional steel Rebar in construction materials, making it an increasingly popular choice in modern infrastructure projects:

• Corrosion Resistance – Unlike steel, GFRP does not rust, making it ideal for environments exposed to moisture, chemicals, or saltwater.
• 75% Lightweight – GFRP is significantly lighter than steel, making it easier to transport and install, reducing labor and logistics costs.
• 3x Stroger - High Strength-to-Weight Ratio – Despite being lightweight, GFRP has impressive tensile strength, making it suitable for load-bearing applications.
• Non-Conductive & Non-Magnetic – Since it does not conduct electricity or interfere with magnetic fields, GFRP is an excellent choice for electrical or sensitive infrastructure projects.
• Low Maintenance & Long Lifespan – GFRP structures require minimal upkeep and have a long service life, reducing long-term costs.

GFRP rebar is being used in a variety of construction projects, particularly in environments where traditional steel rebar would be prone to corrosion. Some common applications include:

1. Bridges and Highways: GFRP rebar is ideal for bridges, overpasses, and highways exposed to de-icing salts and moisture.
2. Marine Structures: Docks, seawalls, and piers benefit from GFRP rebar’s resistance to saltwater corrosion.
3. Parking Garages: The use of de-icing salts in parking garages makes GFRP rebar a superior choice for reinforcement.
4. Water Treatment Plants: GFRP rebar is resistant to the chemicals and moisture found in water treatment facilities.
5. Concrete Structures in Harsh Environments: Any structure exposed to corrosive environments, such as industrial facilities or coastal buildings, can benefit from GFRP rebar.
6. MRI and Medical Facilities: The non-magnetic and non-conductive properties of GFRP rebar make it suitable for use in MRI rooms and other sensitive medical environments.

GFRP can be cut with your normal metal cutting disc or a steel blade hacksaw, and installed similarly to steel but PPE is requires for handling.

Yes, GFRP can be cost-effective, but it depends on the specific use case. While the upfront cost is higher, however the light weight nature of Envirabar and Enviramesh can be reduce transportation and handling cost partially offsetting the higher material cost, the long-term savings in maintenance, durability, and performance often justify the investment, especially in corrosive or specialized environments. For projects where weight, corrosion resistance, or non-conductivity are critical, GFRP is an excellent choice that can save money over the lifecycle of the structure.

Yes, GFRP reduces material waste, extends the lifespan of structures, and does not corrode, making it a sustainable choice for construction.

Yes, GFRP is highly resistant to corrosion, making it ideal for environments exposed to moisture, chemicals, or saltwater.

Envirabars are available in different diameter from 4mm to 32mm

Technical Document