Steel, a material used to support countless infrastructures projects has environmental impact. Steel production is a complex process that involves raw material inputs and chemical reactions as well as power consumption and transport. These all produce CO2 emissions. Although certain steps may be unavoidable in the production of iron and steel, others can be changed to decrease emissions or improve efficiency.
SEMIGPC (Specialized Metallurgical Grade Graphitized Petrol Coke) is a crucial component in the process of steelmaking. SEMIGPC contains low sulfur and high carbon fuels for processes such as electric arc metallurgy or ladle metallurgy. This product is specialized to help ensure that the steelmaking process will be cleaner, with higher levels of purity. The product contributes to a reduction in energy use, lower methane emission from coal mining and improved resource utilization.
GPC's high electrical conductivity, superior strength-to-weight ratio, and environmental benefits make it a desirable alternative to conventional OPC concrete for construction applications1. GPC, in addition to its high environmental standards and CO2 reduction capabilities, can be used as a replacement for cement.
GPC is a composite material made up of construction wastes and industrial scraps. These wastes, collected from nearby landfills, are then heated up in an inert atmosphere to promote the production of graphite. In the graphitization procedure, carbon atoms are rearranged to produce a dense and highly ordered material.
GPC’s unique crystalline structures, for instance, promote efficient water absorption. This leads to improved hydration, and increased durability. The low thermal coefficient reduces damage caused by extreme temperature variations. It also has high electrical conductivity which allows it to be used as a replacement for concrete in projects with tight tolerances and precise structural requirements.
The failure modes of GPC and GPCD specimens were significantly affected by both the presence of fibers and the applied loading pattern. GPC/GPCD samples with a load pattern that is concentrated exhibited brittle collapse characterized by concrete crush, whereas eccentrically-loaded specimens developed typical flexural failure behavior. In this way, the curve of axial loads and lateral displacements was less abruptly collapsed.
The demand for new infrastructure continues to increase, and the industry will need to develop viable alternatives to OPC that meet sustainability and environmental requirements. GPC is a great way to reduce GHGs and save money by using less energy for OPC. Also, the eco-friendly product is ideal for different types of projects, like retaining and foundation walls.
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