Glassfibre Reinforced Concrete or GRC is one of the most versatile building materials available to architects and engineers. Composed principally of cement, sand and special alkali resistant (AR) glassfibres, GRC is a thin, high strength concrete with many applications in construction .
Glassfibre Reinforced Concrete (sometimes called Glassfibre Reinforced Cement) is a mixture of cement, fine aggregate, water, chemical admixtures and alkali resistant glassfibres.
There are a number of different manufacturing processes; the most common are Hand-Spray and Premix, see manufacturing GRC.
There are a number of different manufacturing processes; the most common are Hand-Spray and Premix, see manufacturing GRC.
Glassfibre Reinforced Concrete (GRC) is a material which today is making a significant contribution to the economics, to the technology and to the aesthetics of the construction industry worldwide.
This environmentally friendly composite, with its low consumption of energy and natural raw materials, is being formed into a great variety of products and has won firm friends amongst designers, architects, engineers and end users for its flexible ability to meet performance, appearance and cost parameters.
Since its introduction in 1969, GRC has matured and todays' designer has available to him, depending upon his performance requirements, a range of matrix modifiers such as acrylic polymers, rapid set cements and additives to improve the long term stability of the material. Extensive independent test and performance data are available on all aspects of matrix formulation.
The Alkali Resistant glassfibre is generally used at the 3-5% level in the manufacture of factory finished prefabricated products either by the spray process or using traditional concrete casting methods.
It is also used in the 1-2% range for reinforced renders as a site applied mix and can also be used to control plastic shrinkage cracking, microcracking and bleeding of site-cast concrete.
This environmentally friendly composite, with its low consumption of energy and natural raw materials, is being formed into a great variety of products and has won firm friends amongst designers, architects, engineers and end users for its flexible ability to meet performance, appearance and cost parameters.
Since its introduction in 1969, GRC has matured and todays' designer has available to him, depending upon his performance requirements, a range of matrix modifiers such as acrylic polymers, rapid set cements and additives to improve the long term stability of the material. Extensive independent test and performance data are available on all aspects of matrix formulation.
The Alkali Resistant glassfibre is generally used at the 3-5% level in the manufacture of factory finished prefabricated products either by the spray process or using traditional concrete casting methods.
It is also used in the 1-2% range for reinforced renders as a site applied mix and can also be used to control plastic shrinkage cracking, microcracking and bleeding of site-cast concrete.
For more http://www.grca.org.uk/
read more»
