Table 3.

Proposed conversion functions between cubes and cylinders for UHPC compressive strength.

	convert 50-mm cubes to 100-mm cubes			convert 50-mm cubes to 75-mm cylinders			convert 100-mm cubes to 75-mm cylinders
	Function	p-value	R 2	Function	p-value	R 2	Function	p-value	R 2
Linear with intercept	0.8x + 12.1	< 0.001  < 0.001	0.86	1.1x + 6.2	0.022 < 0.001	0.90	1.3x − 5.7	0.0144 < 0.001	0.94
Linear without intercept	0.90x	< 0.001	0.83	1.10x	< 0.001	0.89	1.20x	< 0.001	0.94
Power function	1.50 × 0.9	0.0352 < 0.001	0.87	1.04 × 1.03	0.733 < 0.001	0.91	0.80 × 1.1	0.0052 < 0.001	0.96