loaded at a constant stress of 40% of the cube strength after 28 days initial curing. The drying shrinkage strain was measured on prism specimens (75 mm x 75 mm x 300 ram) exposed to 20~ 55% RH environment. The results from these tests are given in Table 3. The flexural strength and modulus of elasticity results were similar for RCA and NA concrete mixes. As shown, these followed expected behaviour in terms of the effect of design strength on each property. The creep and shrinkage strains were found to increase with RCA content in the mix. This is due to the increased proportion of cementitious material in the RCA concrete, as the w/c ratio of this mix was reduced by increasing cement content to achieve equal 28-day strength. It is possible that the presence of attached cement paste in the RCA is also a contributory factor for higher creep and shrinkage strains in RCA concretes[18]. The creep coefficient values decreased with the