ABSTRACT

To some extent the science of mix design has moved on since the second edition of this work. The question really exercising advanced mix investigators relates to material passing the 100# (150 micron) and even the 200# (75 micron) sieves and the concretes of particular interest are often self-compacting, sometimes fibre-containing, and sometimes of strengths in excess of 150 MPa. Crusher fines (‘Msand’, manufactured sand) and superfine limestone are being looked at in a new light, alongside the now well-accepted fly-ash, silica fume and metakaolin.