Some of the reasons for concrete cracks, in the event of cracks, shall, first of all, this paper analyzes the reasons of cracking, identification of fracture properties, and observe whether crack is stable and its development status. According to forced characteristics of components, building environment conditions, and the crack location, comprehensive judgement in time and form. The crack reason have ascertained on the basis of the effective measures are taken. For the average crack was not endanger security structure and has stable crack, often by surface treatment method, grouting method, filling sealing method such as crack repair method for processing. For mechanical cause of crack, in addition to dealing with the above mentioned methods, also should take appropriate fuzhou reinforcement material for structural bearing capacity of reinforcement reinforcement. To ensure the structural safety and reliability. Fuzhou reinforcement materials suitable for: can be widely used in repairing and strengthening concrete cracks, the applicable scope of crack width of 0. 05~3mm。 Shape classification of concrete structure cracks according to its formation can be divided into three categories: 1, the stationary crack: shape, size and number of cracks have been stable development no longer. When repair, only in accordance with the crack thickness choose repair materials and methods. 2, the widths of cracks: under the condition of the existing environment and work is always not stable, easy to as structural components of the stress, deformation or the change of environmental temperature, humidity and zhang, closed fracture. To repair, should be to eliminate the causes, and observe for a period of time, sure has stabilized, again according to the processing methods of the static fracture repair; If can not completely eliminate the causes, but determine the safety of structure, the component does not constitute a hazard, you can use material with elasticity and flexibility for repair. : 3, is still in the development of the crack length, width, or the number is still in development, but after a period of time will terminate the cracks. For such fracture should stop the development, and then to repair or reinforcement.
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