UNIQUE BUILDING MATERIAL.

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Graphene – The Miracle Material

Graphene is composed of carbon atoms arranged in a honeycomb lattice pattern. The structure is nearly transparent with one atom thickness. When used in concrete, the material imparts strength that is 200 times greater and makes the concrete six times lighter in comparison to conventional concrete. Hence, these properties of graphene help produce lightweight composite materials.

Graphene is a good conductor of heat and electricity. It absorbs about 2% of the light and is impermeable to hydrogen, helium, and other light gases.

Graphene in Concrete

Graphene is the world’s strongest man-made material with a tensile strength of 130 GPa and modulus of elasticity of 1 Pa. Graphene’s inherent strength helps regain the original shape of the material even after applying a 25% strain. It has dimensions smaller than 1 micron, making it perfect for mixing with cementitious binders, admixtures, and aggregates to obtain better concrete.

The researchers at the University of Exeter have devised a way to suspend flakes of graphene in water. This water is mixed with traditional concrete ingredients, cement, and aggregate. The whole process is inexpensive and compatible with modern construction requirements. The graphene additives are easily mixed with water and added to concrete. Hence, this does not require any additional equipment to handle.

Graphene-enhanced concrete is tested and found to meet the British and European standards for construction. It provides a 146% increase in compressive strength, a 70% increase in flexural strength, and a 400% decrease in permeability.

The incorporation of graphene in concrete would develop structures with increased durability.

By Mc Mushongo investment cc

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