الفهرس Only 14 pages are availabe for public view
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Abstract
The problem of shear transfer between different types of concrete surface cast at different ages has been discussed in many researches. Different types of surface treatments and shear connectors were studied experimentally to test their efficiency in what is called the (composite action) which could be formed between a precast beams and cast in place slabs. In this research eleven composite concrete-concrete T-section with dimensions (beams 120*400*2000 mms) and (slabs 500*100*2000mms) were tested under static concentrated load in the middle of the span, one of them was reference monolithic T-section and the others were with different types of surface treatment like epoxy paint and roughening using shear connectors with different lengths also, the effect of increasing concrete strength was studied to obtain the best way to transfer the shear between concrete layers