Fiber reinforced concrete and method of manufacturing fiber reinforced concrete member

A method of manufacturing a fiber reinforced concrete member, comprising:

• a mixing step of mixing:
• cement;
• first pozzolanic reactant particles;
• second pozzolanic reactant particles composed of any one of fly ash, blast furnace slag or volcanic ash, the second pozzolanic reactant particles having a reactivity lower than the first pozzolanic reactant particles, and the second pozzolanic particles having a median diameter D50 of 2 μm to 11 μm;
• first aggregate particles composed of any one of hard fine sand, sea sand, river sand and crushed sand composed of andesite, volcanic rock, and quartzite, the first aggregate particles having a maximum particle diameter smaller than or equal to 2.5 mm, a mean particle diameter within a range of 0.4 mm to 0.8 mm and a fineness modulus within a range of 1.5 to 3.5;
• second aggregate particles composed of any one of quartz powder, fine sand, silica sand, amorphous quartz, opaline silica-containing powder, cristobalite powder and rock powder, the second aggregate particles having a maximum particle diameter smaller than or equal to 0.425 mm, a mean particle diameter within a range of 0.1 mm to 0.3 mm and a fineness modulus within a range of 0.4 to 0.8;
• at least one plasticizer;
• water;
• and
• fiber to generate fiber reinforced concrete;
• a casting step of casting the mixed fiber reinforced concrete at a location;
• and
• a curing step of curing the cast fiber reinforced concrete,
• wherein the curing step comprises:
• first curing to be performed with a formwork being attached until a target strength develops;
• and second curing to be performed with the formwork being detached after the first curing.