According to the relevant departments of the construction life of the survey data show that the United States is about 74 years, the United Kingdom reached 132 years, and now we have an average of less than 30 years of construction life in china. Why is there such a big contrast? Because of the quality of waterproof layer is not the same, waterproof manufacturers to talk to you about the importance of waterproof layer.
As everyone knows the construction of underground structure is the first factor affecting the construction safety and construction of underground structure, long-term leakage will damage the structure of corroded reinforced concrete foundation, more dangerous is caused by changes in the architectural form that our living environment is in danger.
Why underground structure will appear leakage, first waterproof layer of underground structures is a problem (now usually defined in the waterproof layer is attached to the waterproof layer in the structure on the subject refers to the underground structure itself) and we do not have the waterproof function, so that the construction of underground structures in dire straits, in recent years, the building the collapse of the reason with underground structure problems are inextricably linked.
It has been on the rigid waterproof perception is not enough that the rigid waterproofing in underground structure can not bear the waterproof effect, in fact such as waterproof material concrete structure material is the most important and the most important, but in reality it ignores the importance of self waterproof concrete structure, so we must recognize the rigid waterproof and waterproof material.
Re cognition of rigid waterproof is really the problem of re cognition of "rigid combination", "flexible integration" refers to the first, with just soft rather than just soft combination, but in reality it is "," rigid combination "have the order reversed" formed by the soft. "Flexiblelinkageassistant" is mainly reflected in the main parts of the flexible deformation rigidity. Not only are two layers of flexible integration, the surface layer is absolutely can "just combine". In the usual engineering, the rigid waterproof can be assumed independently, and the flexible waterproof can not be used independently. Rigid flexible composite approach (especially membrane) once we will be unable to find the source of leakage leakage repair is more complex, the practice of rigid waterproof leakage if we can quickly find the leak source and take maintenance measures. More important is the practice of composite rigid (especially membrane) will be hidden safety problems, such as the underground structure appeared in the small crack structure of flexible material has not been destroyed under the situation we cannot know the danger to the safety of the structure, the hidden trouble.