One of the important factors of the cohesive force acting on the precipitated dust layer is that due to the high electric field established in the air gaps between adjacent par - ticles by the corona current as it flows through the dust layer.

According to the principle of cohesive force not being destroyed between casing and cement, the theoretical model of overlap height is confirmed after analysing the paste surfaces of tail tube cement or cement casing in the action of axial load.

In order to understand the influence of rusted reinforcement on structures, the paper tries to find the rust expansion law of reinforcement and the law of influence of rusting on cohesive force between reinforcement and concrete through testing.

Vacuum evaporation coating is applied to the surface of diamond monocrystal to form a metallic chrome layer on it and,at high temperature,part of chrome is bonded together with diamond to form Cr_7C_3,thus improving efficiently the bonding strength of metal bonder to diamond surface.

The simulating experiments on bonding strength between steel pipe and concrete core and bending stress transfer of CFST pile are carried out, and the experimental results are discussed and analyzed in detail.

Curve fitting method of bond stress distribution in steel bar pullout test;

Study on calculating model of bond stress between reinforcing bar and concrete;

Stress variation model of bond stress-slip relationship between steel bar and concrete;

How to improve interlayer adhesive force of bituminous concrete pavement;

Study and test of adhesive force of high pressure lime-sand brick;