ABSTRACT
The slab deflections and longitudinal shrinkage were measured by dial gauges. The steel and concrete strains in the slabs were measured by wire strain gauges and embedded type strain gauges, respectively. The creep and shrinkage of plain concrete were also measured at the same ambient condition. The natural frequencies of the slabs were measured at various ages by dropping 0.5 kg sandbag onto the slabs from a height of 25 cm.
