Why the size of standard cement concrete cube is fixed as 150 mm?

The proportion and material for making these test specimens are from the same concrete in the field ii Specimen: 6 cubes of 15 cm size

For cube test two types of specimens either cubes of 15cm X 15cm X 15cm or 10cm X 10cm x 10cm depending upon the size of aggregate are used

sampling of concrete cubes as per is code Compression tests were conducted at the age of 7 days, 14 days and 28 days on 100mm & 150mm cube samples Finally, the influence of cube size on

cube testing report Concrete Cube Test Dimensions In the UK the crushing strength of concrete is measured using compressive strength tests of concrete involve the crushing of