Where Is the Correct Idea for Durability Research? - The Issues and Discussion of Modern Concrete Science - page 173

in Japan. Bridge piers mainly generate shear destruction and tensile destruction,
so it is suggested that flexural strength be added as quality-controlling index.

7. In general case, early curing can prevent generation of shrinkage crack.

The above 7 items are work content that must be done for regular quality
management at construction site, and they are questions that have common char-
acters. In different industries, there may be other different factors for diverse pro-
jects [ 3 ]. In short, any factors that have effect on quality in construction ought to
also be recognized as having the same impact on durability.

14.3 Ending Words

The above are some thoughts toward what is the correct direction for studying
durability problem. All in all, it is seen that development of concrete is actually a
history that durability is getting worse and worse since concrete has been invented
for 200 years. Durability of engineering structure has transformed from over a
hundreds years in the past to several decades at present. Somebody claims life of
high building casted by high-performance concrete in city is less than 30 years. The
reason why international academia emphasizes continuously in the recent 20 years
lies in the fact that durability is getting worse and worse, nearly reaching status of
destroying this industry. If durability of structure continues to decrease, it is likely
that people may apply steel or other new material in main project structure like
house and bridge rather than concrete.

References

1. China Civil Engineering Society (2005) Durability design and construction guide of concrete
structure
2. Tan W (2000) Review the durability of concrete. In: Fifth national symposium on durability of
concrete
3. Huang S (1995) Concrete durability design points. Concrete 3