3} In an oedorneter test the specimen was 2.54cm thick with and initial water content of 40%. i} If the time required for 50%: consolidation was 20 minutes, what was cf? ii} 1It'l-"hiit time would be required in the eld for 9D% consolidation of a 3m thick layer with (a) one waydamage, and (b) twoway drainage