Table 4.

Proposed conversion functions between cubes and cylinders for UHPC compressive strength with factor of safety.

	convert 50-mm cubes to 100-mm cubes	convert 50-mm cubes to 75-mm cylinders	convert 100-mm cubes to 75-mm cylinders
	Ф10*Function	Ф10*Function	Ф10*Function
Linear with intercept	0.72*(0.8x + 12.1)	0.7*(1.1x + 6.2)	0.78*(1.3x − 5.7)
Linear without intercept	0.89*(0.90x)	0.84*(1.10x)	0.74*(1.20x)
Power function	0.8*(1.50 × 0.9)	0.78*(1.04 × 1.03)	0.77*(0.80 × 1.1)