concreting works concrete constructions 99 concretes 76 iron-concrete constructions 48 building designing 39 architectural designs 38 encase works 24 more ... road bridges 24 tunneling works 22 material testing 14 tunnels 13 hydration 12 civil engineering 12 bridges 11 drfting 10 motorways 9 road tunnels 9 concrete lining 8 prestressed constructions 8 waterproof insulations 7 foot-bridges 7 surface treatment of materials 7 artist colours 6 history 6 museums 6 floors 6 underground structures 6 fiber-reinforced concretes 6 transport constructions 5 underground (transport) 5 less ...