Search analysis on the durability of the concrete structure
—— influencing factors and control measures

1 Foreword
1.1 Durability concept of concrete structure
1.2 Current situation about the durability of concrete structure at home and abroad
1.3 Seriousness and urgency of the problem on the durability of concrete structure
2 Reason and influence factor of the reduction on the durability of concrete structure
2.1 Degradation (Aging) of concrete
2.2 Corrosion of reinforcing steel bar
3 Control measures of the reduction on the durability of concrete structure
3.1 To improve base material
3.2 Anti-corrosion admixture of reinforcing steel bar
3.3 To set surface protection layer
4 Surface protection layer of concrete
4.1 Penetrant
4.2 Sealant
4.3 Coating
4.4 To coat isolated layer
4.5 Cementitious coating
5 ZHONGHE2000 series of waterproof materials
5.1 Mechanism of waterproofing and anti-corrosion
5.2 Performance characteristics of “ZHONGHE 2000” (CCCW)
5.3 Project cases
5.4 Analysis on service life
6 Conclusions
 

Search analysis on the durability of the concrete structure
—— influencing factors and control measures

ZHONGHE waterproof material Co., Ltd. Tianjin 300180, China

Abstract: The factors which influence the durability of reinforced concrete structure are analyzed. The countermeasures of preventing and treating degradation of steel-concrete building structure in environment are proposed. Therefore, “ZHONGHE 2000” capillary crystalline waterproof material will play a major role.
Key words: concrete carbonization, steel corrosion, waterproofing, anticorrosion, capillary crystalline, “ZHONGHE 2000”, economic analysis of the full life

1 Foreword
1.1 Durability concept of concrete structure
　　Reinforced-concrete is the most widely used building material, the material with good comprehensive performances becomes the first choice for modernize engineering structure such as building, bridge, dam, road etc.
　　Concrete structure should satisfy the requirement of safety、applicability and durability. The durability of concrete refers to that the structures and construction members could keep their use function in normal condition in design working life without needing to be vigorously maintained. This design working life is determined by national standards GB50068 《Building structure reliability design unified standards》. Life span of common building construction is 50 years; important construction is above 100 years.