Although industrialization has raised the living standard of human beings but now it is also becoming threat to the environment. The manufacturing industries are producing waste material in large volumes and are emitting greenhouse gases. These waste materials are being dumped on open land that pollute the soil, water, and air. On the other hand, construction industry is using natural resources on large scale to create infrastructures. This has put some natural resources on the verge of fading. River sand is one of the such stressed natural resource which needs immediate researcher’s attention. Through this research work, utilization of copper industry waste material called copper slag has been tried as a substitute of sand in fibre concrete containing 1% hook end steel fibres. The aspect ratio of steel fibre used in this work was 80. It was found that workability of fresh steel fibre concrete increased linearly on inclusion of copper slag. The compressive strength of steel fibre concrete enhanced on inclusion copper slag as replacement of sand. At 28 days, concrete mixture containing 1% hook end steel fibre and 80% copper slag displayed optimum compressive strength of 44.25 MPa against 31.04 MPa of control concrete. At 7, 28 and 56 days, compressive strength of concrete mixture made with 100% copper slag was 32.64, 26.71 and 24.71% higher than that of reference concrete, respectively. Similar trend of enhancement in split tensile strength of fibre concrete with copper slag was observed. At 28 days, concrete mixture containing 80% copper slag displayed 48% and 14.72% higher split tensile strength and bond strength than that of control concrete, respectively. On use of 80% copper slag as substitute of sand, water penetration depth and capillary water absorption of fibre concrete reduced by 25.5% and 42.65%, respectively. Water penetration depth and capillary water absorption reduce almost linearly with increment in copper slag content. The present work establishes that inclusion of copper slag as replacement of sand densify the microstructure of fibre concrete.

工业化虽然提高了人类的生活水平，但现在也正对环境构成威胁。制造业正在大量生产废料并排放温室气体。这些废物被倾倒在污染土壤，水和空气的开阔土地上。另一方面，建筑行业正在大规模使用自然资源来创建基础设施。这使一些自然资源濒临衰落。河沙是这种受压的自然资源之一，需要立即引起研究人员的注意。通过这项研究工作，已尝试利用称为铜渣的铜工业废料来替代含1％钩端钢纤维的纤维混凝土中的沙子。在这项工作中使用的钢纤维的长宽比为80。发现新鲜钢纤维混凝土的可加工性随着包含铜渣的增加而线性增加。钢纤维混凝土的抗压强度提高了夹杂铜渣替代砂的强度。在第28天，包含1％钩端钢纤维和80％铜渣的混凝土混合物的最佳抗压强度为44.25 MPa，而对照混凝土为31.04 MPa。在第7、28和56天时，由100％铜渣制成的混凝土混合物的抗压强度分别比参考混凝土高32.64％，26.71％和24.71％。观察到用铜渣提高纤维混凝土劈裂抗拉强度的类似趋势。在第28天时，含80％铜渣的混凝土混合物的劈裂抗拉强度和粘结强度分别比对照混凝土高48％和14.72％。使用80％的铜渣代替沙子，纤维混凝土的水渗透深度和毛细吸水率分别降低了25.5％和42.65％。渗水深度和毛细吸水率随铜渣含量的增加几乎呈线性下降。目前的工作建立了包含铜渣作为砂的替代物，使纤维混凝土的微观结构致密化。