نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش آموخته دکتری دانشگاه یزد
2 دانشیار گروه آبخیزداری دانشگاه یزد
3 رئیس بخش آب و محیط زیست مجتمع مس سرچشمه
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The use of evaporation reducing physical covers in open water reservoirs is one of the most important methods of water conservation. In the present study, three floating cover including Foamthalate, Urthalate and Unoconcrete were designed to protect the water resources of the Sarcheshmeh Copper Complex, which is based on two polystyrene and polyurethane materials. In order to protect the surface layers of the mentioned coatings against the climatic factors and acidic conditions of water was designed concrete liners in 18 concrete mixing designs and the water-to-cement ratio, the amount of Pozzolan replaces cement, Filler and polypropylene fibers was investigated as variable factors. Then the compressive strength of 28 and 42 days of the samples, as well as the corrosion rate within two months, were measured. In the following, the significance of the observed differences obtained from different experiments in samples made was investigated using Duncan's multiple range test. Finally, the results showed that the presence of Isfahan steel slag as a Pozzolan with 45% by weight of cement and the filler of WR780 at a rate of 2% led to get a maximum resistance of 42 days (560 N) and the lowest corrosion rate (4 g) in the L1 experiment. In addition, the results of the L10 and L15 experiments showed that the amount of Pozzolan replacing cement is a very important factor, so that amounts of more than 50% of it, significantly reduces the strength of the concrete and increases the amount of corrosion.
کلیدواژهها [English]
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