المجلة الدولية للعلوم والتقنية

The concept of sustainability has been developed in recent years to include the construction industry to solve issues related to the high consumption of natural resources, environmental pollution, and the production of large quantities of solid waste and factory waste. There is an urgent need for the construction sector and other industries to go through a green revolution. In other words, industries need to adopt and introduce friendly materials. For the environment, however, the concrete industry has found some sustainable alternatives. Green concrete is a form of environmentally friendly concrete that is manufactured using waste or remaining materials from various industries. It requires a smaller amount of energy for production compared to traditional concrete and contributes to reducing the burden on natural resources. This achieves a clean, pollution-free environment, which achieves development goals Sustainable. This study attempts to apply the concept of sustainable development to reduce environmental pollution by adding iron powder (filing), which was taken from the blacksmith factory in the Al-Jameel city, and was used at percentages (5, 10, 15, 20)% of the weight of the sand and as a partial substitute for it in all mixtures. In order to determine the effect of these ratios on some of the mechanical properties of high-resistance concrete and compare it with the reference mixture. Tests were conducted for the concrete in the plastic state (slump test) to evaluate its performance, and it was also tested in the hardened state (compressive strength, density test) on concrete cubes at different ages (7,14,28) days, and an indirect tensile strength test was also conducted on Standard cylinders at 28 days old. The test results showed that replacing filings as a partial substitute for sand gave good results for concrete in its plastic state, but the slump value was lower compared to the reference mix. Also, adding iron powder had a positive effect in increasing the compressive and tensile strengths compared to the reference mix, so their highest value was at 20%. The density value increased with increasing powder percentage. Keywords: (High-strength concrete, Iron filings, Workability, Mechanical properties, Green concrete).