Table 4 Proposed conversion functions between cubes and cylinders for UHPC compressive strength with factor of safety.

From: Compressive strength and maturity of UHPC cubes and cylinders: new conversion factors and recommendations for early-age quality control

 

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)

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