What is GFRC

MACt is the premier provider of cutting-edge technology and ultra-high-performance additives for concrete in the industry. Our company stands at the forefront as the leading supplier of materials to the Glass Fibre Reinforced Concrete industry in Australia.

Introduction

Welcome to the fascinating world of GFRC (Glass Fibre Reinforced Concrete), a revolutionary material transforming the construction industry in Australia and New Zealand. Known for its incredible strength, versatility, and environmental benefits, GFRC is rapidly becoming a preferred choice for a wide range of construction projects. A blend of fine sand, cement, water, chemical admixtures, and glass fibres, GFRC stands out for its remarkable strength, durability, and versatility. This innovative material allows for greater design flexibility, making it ideal for a range of architectural and decorative applications.

GFRC team by MACt
Concrete Finishing
MACt Team worker
glass fibre concrete bench forming 2 img

What is GFRC?

GFRC stands for Glass Fibre Reinforced Concrete. It represents a major advancement in the construction industry. A blend of fine sand, cement, water, chemical admixtures, and glass fibres, GFRC stands out for its remarkable strength, durability, and versatility. Think of it like a special kind of concrete that’s been made even stronger with tiny glass fibres. These fibres are mixed into the concrete and act like a super-strong net that holds everything together. This makes the concrete much stronger than regular concrete.

This innovative material allows for greater design flexibility, making it ideal for various architectural and decorative applications. It was made a long time ago, around the 1940s, but it has become popular only recently. People are using GFRC because it’s not just strong; it’s also lighter than standard concrete. This means it’s easier to move around and use in different ways.

“Learn more about our GFRC solutions and training programs at MACt Academy. Contact us today for consultations and custom product development.”

Advantages of GFRC

Discover the amazing benefits of GFRC (Glass Fiber Reinforced Concrete), a game-changer in the construction industry. Renowned for its exceptional strength and durability, GFRC outperforms traditional concrete, effortlessly resisting cracks and weather damage. Its lightweight nature is a standout feature, making it easier to transport and handle, which is ideal for complex construction projects.

Architects and designers are drawn to GFRC’s versatility, as it can be moulded into diverse shapes and finished in various textures and colours, offering unparalleled creative freedom. Moreover, GFRC stands out for its environmental friendliness. It requires less cement, can incorporate recycled materials, and has an energy-efficient production process, aligning perfectly with sustainable building practices.

Advantages of GFRC
products

Lightweight Yet Strong

One of the most significant benefits of GFRC is that it is lighter than traditional concrete. This makes it easier to handle and transport, reducing construction costs. Despite being lightweight, it doesn't sacrifice strength, making it ideal for a variety of construction needs.

curve

Design Flexibility

GFRC can be easily moulded into almost any shape and finished in different textures and colours. This flexibility is a big plus for architects and designers who want to create unique and intricate designs in their construction projects, opening up innovation possibilities.

link

Durability

GFRC is much tougher than regular concrete because the glass fibres mix into it and act like a strong network that holds everything together. This strength means that structures made from GFRC don't easily crack or break and can survive harsh weather conditions for many years.

products

Environment Friendly

GFRC is more eco-friendly than traditional concrete. It uses less cement and can incorporate recycled materials in its mix. Additionally, its production process is more energy-efficient. This step towards sustainable construction practices reduces the overall environmental impact.

Get the Details About the GFRC Product Making

Casting GFRC

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque tempor mauris eu justo aliquam ultrices. Aliquam sapien ipsum, fringilla sed hendrerit at, eleifend quis lorem. Cras ornare commodo turpis, eu pharetra augue egestas posuere. Sed vitae lectus pellentesque enim molestie posuere. Nam interdum odio sem, sed pharetra massa congue elementum. Phasellus rutrum porttitor dictum. Duis id suscipit neque. Aliquam dictum ante risus, at laoreet diam consectetur non.

Quisque lorem justo, condimentum sit amet purus rutrum, ultricies eleifend est. Mauris dictum dolor at risus ultrices convallis. Praesent ac urna ut lacus facilisis sollicitudin non sed turpis. Nunc congue metus ac libero eleifend mollis. Nulla vel egestas arcu. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Curabitur consequat rutrum est eu interdum. Nam et dolor ac est condimentum iaculis.

concrete seats chairs and squashed benches img
GFRC course team

Casting GFRC

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque tempor mauris eu justo aliquam ultrices. Aliquam sapien ipsum, fringilla sed hendrerit at, eleifend quis lorem. Cras ornare commodo turpis, eu pharetra augue egestas posuere. Sed vitae lectus pellentesque enim molestie posuere. Nam interdum odio sem, sed pharetra massa congue elementum. Phasellus rutrum porttitor dictum. Duis id suscipit neque. Aliquam dictum ante risus, at laoreet diam consectetur non.

Quisque lorem justo, condimentum sit amet purus rutrum, ultricies eleifend est. Mauris dictum dolor at risus ultrices convallis. Praesent ac urna ut lacus facilisis sollicitudin non sed turpis. Nunc congue metus ac libero eleifend mollis. Nulla vel egestas arcu. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Curabitur consequat rutrum est eu interdum. Nam et dolor ac est condimentum iaculis.

GFRC Curing

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque tempor mauris eu justo aliquam ultrices. Aliquam sapien ipsum, fringilla sed hendrerit at, eleifend quis lorem. Cras ornare commodo turpis, eu pharetra augue egestas posuere. Sed vitae lectus pellentesque enim molestie posuere. Nam interdum odio sem, sed pharetra massa congue elementum. Phasellus rutrum porttitor dictum. Duis id suscipit neque. Aliquam dictum ante risus, at laoreet diam consectetur non.

Quisque lorem justo, condimentum sit amet purus rutrum, ultricies eleifend est. Mauris dictum dolor at risus ultrices convallis. Praesent ac urna ut lacus facilisis sollicitudin non sed turpis. Nunc congue metus ac libero eleifend mollis. Nulla vel egestas arcu. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Curabitur consequat rutrum est eu interdum. Nam et dolor ac est condimentum iaculis.

comprehensive guide resealing concrete benchtops with mact seal img
Slide Images 1

More Technical Training

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque tempor mauris eu justo aliquam ultrices. Aliquam sapien ipsum, fringilla sed hendrerit at, eleifend quis lorem. Cras ornare commodo turpis, eu pharetra augue egestas posuere. Sed vitae lectus pellentesque enim molestie posuere. Nam interdum odio sem, sed pharetra massa congue elementum. Phasellus rutrum porttitor dictum. Duis id suscipit neque. Aliquam dictum ante risus, at laoreet diam consectetur non.

Quisque lorem justo, condimentum sit amet purus rutrum, ultricies eleifend est. Mauris dictum dolor at risus ultrices convallis. Praesent ac urna ut lacus facilisis sollicitudin non sed turpis. Nunc congue metus ac libero eleifend mollis. Nulla vel egestas arcu. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Curabitur consequat rutrum est eu interdum. Nam et dolor ac est condimentum iaculis.

WHY CHOOSE MACTS GFRC img

WHY CHOOSE MACT’S GFRC?

Here’s is what you will discover during your consultation with one of our experts from MACt.

Choosing MACt’s GFRC for your construction projects means opting for top-notch quality and reliability. Our GFRC is known for its exceptional strength and durability, ensuring your structures withstand the test of time. It’s also incredibly versatile, perfect for a variety of designs and applications.

Our commitment to sustainability means you’re making an eco-friendly choice. With MACt’s GFRC, you get a blend of performance, aesthetic flexibility, and environmental responsibility, making it the ideal material for forward-thinking construction.

link

Improved Fire Resistance

GFRC exhibits excellent fire-resistant properties. Its composition makes it less susceptible to damage in high-temperature scenarios, providing an additional layer of safety in fire-prone areas or applications.

01

feathers

Low Maintenance

Due to its durability and resistance to various environmental factors, GFRC requires minimal maintenance. This not only eases the long-term care and upkeep costs but also ensures that the aesthetic appeal of the structures is maintained over time with minimal effort.

02

biodegradable (1)

Resistance to Chemicals

GFRC is highly resistant to corrosion and the damaging effects of chemicals. This makes it an ideal material for use in industrial environments or areas exposed to harsh chemicals, extending the lifespan of the structures.

03

adjustments

Thermal Efficiency Low Maintenance

GFRC provides better insulation compared to traditional concrete. This improved thermal efficiency can contribute to building energy savings by maintaining more consistent internal temperatures, reducing the need for extensive heating or cooling.

04

profit

Reduced Time and Cost

Due to its lightweight nature, GFRC panels and structures are easier and quicker to install. This efficiency not only saves time during the construction process but also significantly cuts down on labour costs, benefiting both the project timeline and budget.

05

Frequently Asked Questions

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque tempor mauris eu justo aliquam ultrices. Aliquam sapien ipsum, fringilla sed hendrerit at, eleifend quis lorem. Cras ornare commodo turpis, eu pharetra augue egestas posuere. Sed vitae lectus pellentesque enim molestie posuere.

Cement: No two cements are the same, they have different mineralogies and different particle sizes. Cements from the same kiln will have a different particle size depending on the date and time of year made. Basically, finer particle size will increase the surface area and the plasticiser demand.

• Finer particle size will increase thixotropy, the amount of flow when being agitated. A higher thixotropy produces much less flow when not agitated.

• Sand: The size of your sand has a huge effect on the flow of your GFRC, a coarse sand will have a better flow than a fine sand. If your sand is very fine, it could make your mix unusable and solid. A coarse sand will have a lower water demand than a fine sand, and a wet sand has trapped water on the surface compared with dried sand. Controlling your mix, you should always take into account the level of water in your sand. To do this either use dried sand or dry your sand before you weigh it out.

• Temperature: The hydration of cement gets faster with increasing

temperature, roughly halving the work time every 10°C rise.

• Therefore, if the cement gels at 2 hours at 20°C, it will gel at about 1 hour at 30°C and 30 mins at 40°C. Adding ice changes the mix temperature and slows the get down, so always check your water and powder temperature.

  • + 10° 20° 30°
  • 0° N 12.1% 38.3%
  • 1° O 13.7% 40.5%
  • 2° 15.8% 42.4%
  • 3° I 18.3% 44.0%
  • 4° C 21.0% 45.2%
  • 5° E 24.0% 46.2%
  • 6° 27.0% 46.9%
  • 7° 30.0% 47.6%
  • 8° 10.6% 33.0% 48.2%
  • 9° 11.1% 35.7% 49.1%

Amount of ice to add for any temperature. Always subtract the ice from your mix water.

10 kg of water with 50% ice would be 5kg water and 5 kg ice.

Note: If adding Ice, only add half your powder to the water/ice first to allow some of the ice to melt before adding the rest of the powder. Otherwise, your mix may gel prematurely.

MACt Premix is a general 100+ MPa GFRC mix. It is constructed from very high whiteness Portland cement, a specific washed and dried white sand of optimum particle size. These are blended with the specialist polymers, hydration modifiers and super plasticisers at accurately controlled levels. It is a complete, professional grade GFRC mix. Coverage per bag -½ sqm @20mm thick.
MACt Premix is a general 100+ MPa GFRC mix. It is constructed from very high whiteness Portland cement, a specific washed and dried white sand of optimum particle size. These are blended with the specialist polymers, hydration modifiers and super plasticisers at accurately controlled levels. It is a complete, professional grade GFRC mix. Coverage per bag -½ sqm @20mm thick.

Cement: No two cements are the same, they have different mineralogies and different particle sizes. Cements from the same kiln will have a different particle size depending on the date and time of year made. Basically, finer particle size will increase the surface area and the plasticiser demand.

• Finer particle size will increase thixotropy, the amount of flow when being agitated. A higher thixotropy produces much less flow when not agitated.

• Sand: The size of your sand has a huge effect on the flow of your GFRC, a coarse sand will have a better flow than a fine sand. If your sand is very fine, it could make your mix unusable and solid. A coarse sand will have a lower water demand than a fine sand, and a wet sand has trapped water on the surface compared with dried sand. Controlling your mix, you should always take into account the level of water in your sand. To do this either use dried sand or dry your sand before you weigh it out.

• Temperature: The hydration of cement gets faster with increasing

temperature, roughly halving the work time every 10°C rise.

• Therefore, if the cement gels at 2 hours at 20°C, it will gel at about 1 hour at 30°C and 30 mins at 40°C. Adding ice changes the mix temperature and slows the get down, so always check your water and powder temperature.

  • + 10° 20° 30°
  • 0° N 12.1% 38.3%
  • 1° O 13.7% 40.5%
  • 2° 15.8% 42.4%
  • 3° I 18.3% 44.0%
  • 4° C 21.0% 45.2%
  • 5° E 24.0% 46.2%
  • 6° 27.0% 46.9%
  • 7° 30.0% 47.6%
  • 8° 10.6% 33.0% 48.2%
  • 9° 11.1% 35.7% 49.1%

Amount of ice to add for any temperature. Always subtract the ice from your mix water.

10 kg of water with 50% ice would be 5kg water and 5 kg ice.

Note: If adding Ice, only add half your powder to the water/ice first to allow some of the ice to melt before adding the rest of the powder. Otherwise, your mix may gel prematurely.

MACt Premix is a general 100+ MPa GFRC mix. It is constructed from very high whiteness Portland cement, a specific washed and dried white sand of optimum particle size. These are blended with the specialist polymers, hydration modifiers and super plasticisers at accurately controlled levels. It is a complete, professional grade GFRC mix. Coverage per bag -½ sqm @20mm thick.

Typical additional admixtures levels for a 20kg:

  • Water: 2.78L–3.0L
  • Plasticiser: 10g – 50g
  • Fibres HD: 50g-300g
  • Fibres Bundled: 400g-700g
  • Retarder: 5g-20g
  • Accelerator: 5g–20g
  • Defoamer: 1g-3g
  • Colour: up to 800g

*NOTE: All admixes will alter the way the mix behaves.

City Mix has developed a unique and economical technology that enables the recycling of large volumes of waste packaging and insulating foam (commonly “EPS”) into an extraordinarily lightweight and user-friendly material suitable for blending in a wide variety of concrete products. The patent-pending technology allows varying portions of the heavy sands and gravels common to cement-based mixtures to be replaced with ultra-lightweight City Mix material in order to reduce overall concrete product weight.
This is the binder that changes your mix from a paste to a solid. It is the total of both the cement and any pozzolan that you have in the mix. Depending on what you need, some mixes can have very high cementitious contents.