effect on the environment. Concrete’s components include Fly Ash, Silica Sand, Portland cement and aggregate. In GRC we introduce the component of fibreglass as well as other natural chemicals in order to produce a super strong and flexible material. The process of producing the water based material produces no chemical off-gas or byproducts. GRC is a green material in many ways. Primarily, the use of recycled aggregates such as recycled glass, metals and other recycled materials give GRC a modern look. The aspects of GRC which make it a green material include its composition of natural materials such as sand, and other aggregates.  Fibre glass is made from an abundant and rapidly renewable resource (Sand) and recycled postconsumer glass. Slag wool insulation is made from recycled blast furnace slag - a by-product of other industries. Although GFRC has a myriad number of advantages and is slowly called a brick of the future, it also has some flaws, which seems to be a main topic of many worldwide scientific projects. There is a number of defects, that are highly connected with the environmental impact. Here is a list of just selected ones: • The cost of GFRC is higher than traditional concrete. Due to the fibreglass being inside the concrete and the addition of additives and acrylic co-polymer the price is steeper. • When produced as cladding panels, should only be used in nonload-bearing applications. • A separate anchorage system in required to support the panels. Large panels require a metal reinforcement or other construction system. • The integral color of GRFC will lighten as a result of weathering – especially wetting and drying. • Proper detailing of the joints, including the material used and the dimensions and location of joints, is essential to the water tightness and long-term service ability of the panel system. • The expansion and contraction characteristics of GFRC change with moisture content and thermal changes. • Unknown history of GFRC use in domes. Can only be used in vertical planes.  2.4. Ecological properties of GFRC materials. Within numerous, eco-friendly advantages of GFRC products, it’s proper to mention a certain ranking called LEED. The LEED rating system has become the basis for evaluating the claims for Green Architecture. LEED (Leadership in Energy and Environmental Design) Green Building Rating System® is a voluntary, consensus-based national standard for developing high-performance, sustainable buildings. LEED was created to define “green building” by establishing a common standard of measurement, promote integrated, whole-building design practices recognize environmental leadership in the building industry, stimulate green competition raise consumer awareness of green building benefits transform the building market Members of the U.S. Green Building Council representing all segments of the building industry developed LEED and continue to contribute to its evolution. LEED standards
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- Fall '19