Influence of Slag Cement on the Permeability of Concrete for Biological Shielding Structures

摘要: Durability of concrete designed for radiation shielding structures is an important issue in nuclear power plant safety. An investigation the permeability containing heavyweight aggregates and water-bearing was performed with respect to gaseous liquid media. Mix design developed using Portland slag cement, crushed magnetite serpentine aggregate. The use cement resulted substantial improvement compressive strength comparison concrete. application found reduce chloride ingress, regardless special aggregate use. coefficient migration within range 5 ÷ 8 × 10−12 m2/s 17 25 concrete, respectively. At same time, carbonation depth increased twice However, maximum after one year exposure 1% CO2 only 14 mm 7 reference total pore volume evaluated mercury intrusion porosimetry influenced by type used. It shown that various contents achieved smallest volume. While coarse caused increase