|  1  | Recycled and Secondary Materials and Use | 
|  2  | Use of Quarry Fines | 
|  3  | Fresh Concrete, Engineering and Durability Performance | 
|  4  | Performance- Based Specifications | 
|  5  | Environment Impact and Sustainable Development | 
|  6  | CO2 Life Cycles Assessment/Analysis | 
|  7  | Case Studies, Future Development and Trends | 
|  8  | Others |