Abutment backfill concrete Foamed concrete backfill materials for light weight and strength than the average higher, flow plasticity of the body construction is to facilitate construction; has strong independence after forming, high durability, sound damping, fast construction, and many other advantages. Excavation fill, highway embankment, control bridge Taiwan back jumps off, special areas such as promoting the use of structure modeling and achieved good results. Became one of the filling material of choice in the field. At present, the filling of foam concrete in Foundation pit, highway embankment, control bridge Taiwan back jumps off, filling the tunnel, platform floors, protection of ancient architecture repair, special structure modeling, GOB backfilled area is used. More