Although BS 882:1973 has now been revised, Tables 19.319.5 are still of practical use as a guide to determining the ratio of fine to coarse aggregate required to make a dense mix. Of the four Zone gradings shown in BS 882:1973, Zones 2 and 3 were the most used for forming a suitable concrete mix. Zone 1 grading (the coarsest) tended to give a ...
