Ultra High Performance Concrete (UHPC)
UHPC It is a high strength, ductile material formulated by combining of cement, silica fume, quartz silica sand , crushed quartz, super plasticizer and metallic fibers
Ductile Mix Design No coarse aggregate Cement 710 kg/m3 Silica Fume Crushed Quartz Sand Fibres Plasticiser Total Water No coarse aggregate
MATERIALS SIZE Quarts silica sand 0.3 – 0.8mm was used as aggregate. Cement 1 to 250 micron Silica fume 0.1 – 1.0 micron
Metallic fiber dia 0.18 – 0.25, length 6 – 20mm and 2500 tensile strength
Comparing Properties Properties of UHPC Compressive strengths up to 200 Mpa Flexural Strengths up to 50 Mpa Direct tension up to 10 Mpa Properties of Concrete Compressive Strength 25 to 35 Mpa Almost no tensile strength
25 mm thick 1.8m x 3m slab supporting car
BCV - CHABOTTE BRIDGE, FRANCE
Applications of UHCP Architecture Bridges Narrow supports Filigree beams Thin or slab-like components Buttresses for high pressures