00400nam a2200109Ia 4500008004100000082001200041082000800053245020200061245000900263260000900272300000900281231017s9999    xx            000 0 und d  a620.136  bWAL 0aEngineering Properties of Concrete Containing Recycled Aggregates: An Investigation into the Effects of Recycled Aggregates on the Engineering Properties of Concrete - Aggregates Research Programme 0cWrap  bWrap  c30cm