Corrosion effect of acid rain on the technical properties of mineral aggregates

摘要

Through a large number of laboratory tests, authors study corrosion effect of acid rain on the technical properties of mineral aggregate, such as apparent relative density, bulk relative density, crushing value and Los Angeles abrasion value. According to the tests results, the degree of acid corrosion of mineral aggregates constantly increases with the decreasing of the PH value and the increase of dry-wet cycle number. The acid corrosion resistance ability of mineral aggregates is the best for the granite, medium for basalt and the worst for limestone.