جستجوی مقالات مرتبط با کلیدواژه "frost resistance" در نشریات گروه "عمران"

In this study, to evaluate the effect of magnetic water along with the effect of smelting slag on concrete, electrical resistance tests, water permeation depth and frost and melting resistance tests were carried out. Three types of environmental conditions (sulfate, chlorate and ordinary water solutions) and conventional water ponds were used to perform the tests. The mixing design used in this study has two types of compressive strengths of 25, 40 MPa. The results showed that magnetic water has a great effect on the concrete and its application increases the specific electrical resistance of the concrete and reduces the chance of corrosion of buried steel in the concrete. Magnetic water also reduces the depth of water infiltration, increases the number of thawing and frost cycles, and increases the durability index. Increasing the percentage of smelting slag in concrete increases the specific electrical resistance of concrete, decreasing water penetration depth, increasing the number of frost and melting cycles, and concrete durability index. Increasing the compressive strength of the concrete from 25 to 40 MPa in addition to having a great effect on the mechanical properties, increased the specific electrical resistance of the concrete, decreased the water penetration depth, and also increased the number of frost and thaw cycles and the concrete durability index. It should be noted that the samples exposed to the sulfate medium performed better than the samples exposed to the chlorate medium and had lower electrical resistance and increased water penetration depth than the samples exposed to ordinary water.