Comparison between Concrete with Granite Powder and Concrete with Iron Powder

摘要

Concrete with Granite Powder (GP) consists of Portland cement, coarse aggregate and GP as a partial replacement of sand, while Concrete with Iron Powder (IP) consists of Portland cement, coarse aggregate and IP as a partial replacement of sand. Polishing industry in a powder form. In order to explore the possibility of using the GP as a partial replacement to sand, an experimental investigation has been carried out. Twenty cubes, 10 cylinders and 10 beams of concrete with GP were casted. Iron Powder (IP) was also used as a partial replacement to sand. For this purpose, another twenty cubes, 10 cylinders and 10 beams of concrete with IP were casted. The percentages of GP and IP added to replace sand were 0, 5, 10, 15, and 20% of sand by weight. It was observed that substitution of (0-20%) of sand by weight with IP in concrete resulted in an increase in compressive, split tensile strength and flexural strength of concrete. It was also observed that substitution of 10% of sand by weight with GP in concrete resulted in a maximum increase in compressive strength to 48.9 N/mm~2 compared to 35.8 N/mm~2 of control concrete, increase in splitting tensile strength to 3.0 N/mm~2 compared to 2.62 N/mm~2 of control concrete. However flexure strength of 10% (GP) replacement exhibited a good improvement of flexural strength to 4.62 N/mm~2 compared to a 3.23 N/mm~2 of control concrete after 28 days. Finally Reuse (GP) in concrete also extremely decrease the environmental pollution.