Holdfast Training Services Trial Blog

Does concrete on site get sampled for testing in cylinders, 6″/150mm cubes or smaller 4″/100mm cubes?  I ask because, although I know what the BS says, I was recently told that site practice has moved towards using smaller 100mm cubes rather than the standard 150mm.  No evidence was offered to support this but I don’t wish to tell someone that they are misinformed without some evidence to support my position.  What do you know of your site or others you have visited?