This project is conducted to observe the potential concrete made with replacement of 10 %, 20 % and 40 % iron ore to sand. The DOE method was used in designing the concrete mix for the concrete and then modified to replace 10 %, 20 % and 40 % of the sand by iron ore. The study was conducted in laboratory to investigate the behavior of the concrete in term of mechanical strength as well as the physical properties. In terms of mechanical strength, the harden concrete was tested for its compressive, and flexural strengths. The physical properties of fresh concrete were indicated by slump test. Several concrete samples were cast and cured using normal curing and tested at 7, 14 and 28 days. The concrete density up to 2459 kg/M obtained in this study. The result indicated that compressive strength increase with the age of sample. The flexural strength and compressive strength of concrete, with iron ore decreased as a percentage increase in the replacement of iron ore. This can be concluded 40 % was not capable to be used but there may be some condition that need for this percentage. Nevertheless, the result had proven that concrete with iron ore is denser and heavy than conventional concrete.ud3 was
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机译：进行该项目的目的是观察用10％，20％和40％的铁矿石替代沙子制成的潜在混凝土。 DOE方法用于设计混凝土的混凝土配合比，然后修改为用铁矿石代替10％，20％和40％的沙子。该研究是在实验室进行的，旨在研究混凝土的机械强度和物理性能。在机械强度方面，对硬化混凝土的抗压强度和抗弯强度进行了测试。坍落度试验表明了新鲜混凝土的物理性能。使用常规固化方法浇铸和固化一些混凝土样品，并在7、14和28天进行测试。在这项研究中获得的混凝土密度高达2459 kg / M。结果表明，抗压强度随样品的老化而增加。含铁矿石的混凝土的抗折强度和抗压强度随着铁矿石替代量的增加而降低。可以得出结论，有40％的用户无法使用，但可能有一些条件需要该百分比。尽管如此，结果已证明含铁矿石的混凝土比常规混凝土更致密，更重。
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