What is GFRC?

GFRC or Glass Fibre Reinforced Concrete is a specialized form of concrete. It’s a cement-based composite material reinforced with alkali-resistant glass fibers.

They perform the same function as reinforcing steel in reinforced concrete, adding flexural, tensile and enhanced strength. Thus, producing tough yet lightweight architectural concrete products such as building panels.

How does GFRC work?

The glass fibres used in GFRC contribute to the compound’s strength. The main tensile load carrying member is alkali-resistant fibres, while the polymer and concrete matrix bonds the fibres together and helps transfer loads from one fibre to another.

Without the fibres, the GFRC would be more prone to cracking and breakage. Finding the right mixture for concrete is a complex and confusing task, however, most mixtures have similar ingredients and proportions. Basic components in a good mixture include:

  • Fine sand                     
  • Cement
  • Polymer
  • Water
  • Alkali resistant glass fibres
  • Fibre content
  • Other admixtures

There are three different methods used in casting GFRC elements:

Spray-up

Spray-up GFRC is applied in a manner similar to shotcrete in that the fluid concrete mixture is sprayed into the forms. A customised spray gun is used to apply the fluid concrete mixture while also cutting and spraying long glass fibres from a continuous spool.

Spray-up produces exceptionally strong GFRC due to the high fibre load and long fibre length, although the equipment is costly.

Premix

Premix incorporates shorter fibres into the fluid concrete mixture, which is then poured or sprayed into moulds. Spray guns for premix do not require a fibre chopper, although they can be very expensive. 

Premix also has less strength than spray-up since its fibres are shorter and distributed more widely throughout the mix.

Hybrid

The last method to create GFRC is to utilise a hybrid approach that applies the face coat using an affordable hopper gun and a handpacked or poured backer mix.

A thin face without fibres is sprayed into the moulds, and the backer mix is then packed in by hand or poured in similarly to ordinary concrete.

This is the approach used by the majority of concrete countertop manufacturers.

Cladding

Cladding

Marina East Desalination Plant – MEDP

Cladding

Ng Teng Fong hospital

Cladding

Tanah Merah Coast Road, Tanah Merah Country Club (TMCC)

Cladding

The Quinn @ Bartley Road

Cladding

Marina East Desalination Plant – MEDP

Cladding

Ng Teng Fong hospital

Cladding

Tanah Merah Coast Road, Tanah Merah Country Club (TMCC)

Cladding

The Quinn @ Bartley Road

Column

Column

Dalvey Estate

Column

Muscat Street

Column

A&A @ Level 4 Kent Ridge Wing NUH

Column

Sunset Crescent

Column

SFA @ TECHQUEST Building

Column

Dalvey Estate

Column

Muscat Street

Column

A&A @ Level 4 Kent Ridge Wing NUH

Column

Sunset Crescent

Column

SFA @ TECHQUEST Building

Door Window Frame

Door Window Frame

Lorong Salleh

Door Window Frame

Wilkinson Road

Door Window Frame

Lorong Salleh

Door Window Frame

Wilkinson Road

Facade

Facade

AWWA School @ Bedok

Facade

Bugis Junction Tower At Victoria Street

Facade

Harbour View Gardens

Facade

Millenia Walk, 9 Raffles Boulevard #01-108, Singapore 039596

Facade

AWWA School @ Bedok

Facade

Bugis Junction Tower At Victoria Street

Facade

Harbour View Gardens

Facade

Millenia Walk, 9 Raffles Boulevard #01-108, Singapore 039596

Handle Bar

Handler Bar

Bugis Office Tower – Lifts Grab Bar

Handler Bar

Bugis Office Tower – Lifts Grab Bar

Panels

Panels

MFA

Panels

Yale-NUS College Campus

Panels

MFA

Panels

Yale@NUS College Campus

Planter Box

Planter Box

Dawson C3

Planter Box

DC4- Dawson Contract 4 @ Margaret Drive

Planter Box

Hougang HG N9 C21 – Stallion

Planter Box

Jurong East N2C25 Planter Box

Planter Box

Far East Square-Panter box

Planter Box

Seng Kang N4C19 GFRC Planter Box

Planter Box

Dawson C3

Planter Box

DC4- Dawson Contract 4 @ Margaret Drive

Planter Box

Hougang HG N9 C21 – Stallion

Planter Box

Jurong East N2C25 Planter Box

Planter Box

Far East Square-Panter box

Planter Box

Seng Kang N4C19 GFRC Planter Box

Timber Look-alike Floor

Timbre Look-alike Floor

Under MRT Track Community Garden near Vacant Land at Blk 201B Tampines Street 23

Timbre Look-alike Floor

Boat Quay

Timbre Look-alike Floor

NParks N110 Pasir Panjang Linear Park

Timbre Look Like A Floor

Under MRT track Community Garden near Vacant Land at Blk 201B Tampines Street 23

Timbre Look Like A Floor

Boat Quay

Timbre Look Like A Floor

NParks N110 Pasir Panajing Linear Park

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