Mechanical Properties of Microsteel Fiber Reinforced Concrete and Its Gradient Design in the Partially Reinforced RC Beam

Table 2

Properties of fly ash.

Apparent density (kg·m^−3)	Sieve residue under 45 μm (%)	Specific surface area (m^2·kg^−1)	Water demand (%)	Loss on ignition (%)	Water content (%)
2300	4.4	460	92	1.9	0.3