Abstract: In order to analysis the mechanical and the bond properties of the concrete, which added steel light aggregate. The mechanical and the bond performance between steel bar and HPP fiber reinforced lightweight aggregate concrete were analyzed based on the experience. The results show that the enhancement effect difference is bigger under the different water consumption, sand coarse aggregate ratio. The ultimate bond performance increasing with the concrete strength grade,and it could be reduced the initial slip of steel bar. Added steel fibers of mechanical and adhesive properties of concrete specimens will be reduced as a lightweight aggregate cylinder pressure is reduced.

Key words: HPP fiber lightweight aggregate;mechanical property;bond strength