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In recycled concrete huge effect on the environmental, economic, and its research has become a hot spot. With the gradual deepening of research, engineering design and construction aspects of the urgent need to know about renewable bonding properties between the concrete and steel, at home and abroad in this regard carried out some preliminary studies, but relatively speaking in the main limitations in the qualitative stage. For the above reasons, the paper first building pebbles, gravel \the slump, the apparent density of matter, not instars concrete cube compressive strength and other performance indicators; Finally, the pull-out test of the 162 specimens to explore the bond properties between recycled concrete and reinforced. The test results show that: the recycled coarse aggregate density is lower than the natural coarse aggregate, water absorption, rugged weaker; work performance and compressive strength of recycled concrete mixture can meet the engineering requirements, which also verify the application feasibility; the regeneration load between the concrete and steel - similar to the overall shape of the slip across the board with ordinary concrete, renewable bond strength between the concrete and steel and reinforced shape a great relationship: If you do not take mechanical anchoring measures, increased by about 10 times under the same conditions, the regeneration of the strength of the adhesion between the concrete and HRB335 reinforced than the bond strength between the HPB235 reinforced; compressive strength (f Cu ), the protective layer thickness ( c), anchorage length (l a ), basically the same bar diameter (d) anchoring conditions investigated the ultimate strength of recycled concrete and ordinary concrete bonding anchor; ribbed steel, the use of most of the recycled concrete bond properties than the same water-cement ratio, the better the rate of ordinary concrete with sand; using plain bars, regeneration of the anchoring bond strength between the concrete and ordinary concrete and steel are very low. Therefore, the article suggests: in the choice of appropriate recycled aggregate, recycled aggregate, mixing ratio conditions, regeneration the ribbed reinforcement in the concrete bonding anchorage length can have access to the corresponding standards of ordinary concrete; plain bars application recycled concrete must be reliable mechanical anchoring measures, such as the end of the reinforced set bolts and other fasteners.
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