Seite - 1512 - in Book of Full Papers - Symposium Hydro Engineering

beyond 45 minutes from the batching time of the mix placed at the failing location. Figure 5 shows RCC construction and compaction testing. Fig. 5 RCC construction and density testing (Javeh Dam-Iran) 5. POST CONSTRUCTION QUALITY CONTROL ACTIVITIES [2, 4, 5] As with conventional concrete, RCC must be kept continuously moist for the prescribed curing period. Because RCC is dryer than conventional concrete, surfaces tend to dry more rapidly during warm weather. In such conditions, considerable effort will be required to maintain a uniformly moist surface. After compaction of RCC, the curing activates shall be started. Curing activates shall be done according to air condition and weather temperature in summer or winter. Figure 8 shows curing of RCC lift surface. In RCC Dams, Samples of RCC can be obtained from coring in order to determine the in situ properties. This provides the best evidence of concrete performance by providing samples for strength and density determination, for viewing the density matrix from top to bottom of the lifts, and for identifying lift joint bond or lack of bond. Generally, coring is performed upon completion of the RCC structure. Figure 6 shows Curing of RCC lift surface and Core of RCC. Fig. 6 Curing of RCC lift surface and Core of RCC- length 3m (Uma Oya Project) 1512