The flowability and compressive strength were evaluated to examine the effect of biner mixing ratio on the high-fluidity concrete with low binders. When the binder mixing ratio (OPC, BFS, FA) was 7:2:1, It was most suited for high-fluidity concrete with low binders by increasing workability and compressive strength.

The flowability and compressive strength were evaluated to examine the effect of biner mixing ratio on the high-fluidity concrete with low binders. When the binder mixing ratio (OPC, BFS, FA) was 7:2:1, It was most suited for high-fluidity concrete with low binders by increasing workability and compressive strength.

Girder type and slab type modular bridges require using UHSC(Ultra High Strength Concrete) and high performance mortar to connect each girder and slab modules at joint parts. This study presents the results of mock-up tests on the properties of UHSC and high performance mortar for modular bridge

Girder type modular bridge requires using ductile fiber reinforced concrete slab(link slab) structure to connect each girder modules at interior support points. This study presents the results of experimental evaluation on the properties and fracture energy of ductile fiber reinforced concrete for jointless modular bridge.