GRC/GFRC ： Glass Fiber Reinforced Concrete

GRC (Glass Reinforced Concrete) is a fiber-reinforced cementitious material made primarily of alkali-resistant glass fiber, cement as the main gelling agent, and sand as aggregate, supplemented with admixtures. Sand acts as filler and skeleton in GRC, while glass fiber provides reinforcement.

Thin Walls and Lightweight: GRC has a density of around 2000 kg/m³, lighter than concrete, allowing for the creation of thin-walled components. Typically, GRC components have a wall thickness of around 15 mm, with the thickest less than 30 mm and the thinnest 5 mm. This thinness contributes to its lightweight nature. A 15 mm thick GRC component weighs only 30 kg per square meter, and even considering the weight of extensions and protruding embedded parts, it's no more than 50 kg. With a supporting steel frame, the total weight per square meter is still less than 100 kg.

Flexible Shaping: GRC components are molded in molds, and their lightweight nature allows for easy shaping, enabling the creation of various complex forms.

Diverse Simulations

Because GRC contains no coarse aggregates, it can delicately and accurately represent different textures and patterns. It can be made smooth as a mirror or rough like stone. Furthermore, with the addition of textured surface layers or combined with latex paint, fluorocarbon paint, etc., it can simulate various textures such as granite, sandstone, red brick, ceramic tile, wood, and metal.

Origins

GFRC (GLASS FIBER REINFORED CONCRETE), also known as GRC, is a composite material using cement mortar as the base material and alkali-resistant glass fiber as the reinforcing material. It also includes various additives for enhancing performance, as well as pigments. The manufacturing process of GFRC is quite unique. The prepared glass fiber concrete is sprayed onto a template, resulting in a delicate texture and ensuring excellent density, strength, and crack resistance. Products made in this way are vastly different in quality from ordinary concrete application. In Europe and America, single-layer GFRC thin panels are widely used exterior wall cladding.