Cause and control of aerated concrete block wall crack;

The causes of air-entrained concrete wall crack and its control measures;

The application of wall crack treatment technique in practical engineering;

Reasons analysis and reinforcement process of a teaching building wall cracks;

Controlling of brick concrete structural wall cracks;

Analysis on the wall cracks in general constructions and countermeasures thereof;

Study on the causes of cracks on external wall of residence with frame structure and preventive measures;

Discussion on multi-layer building s wall crack and its control;