DL/T 5207-2005水工建筑物抗冲磨防空蚀混凝土技术规范

1 Scope

2 Normative References

3 Terms and Definitions

4 General

5 Hydraulics and Hydraulic Design

5.1General

5.2 Anti-abrasion Design

5.3 Anti-cavitation Design

6 Material

6.1 Inorganic Materials

6.2 Organic Materials

6.3 Material Selection

7 Construction

7.1 Design Principle for Concrete Mixture Proportion

7.2 Construction Technical Requirement

8 Maintenance and Repair

8.1 Generai

8.2 Inspection and Maintenance

8.3 Repair Work

9 Quality Control and Acceptance

9.1 Quality Control

9.2 Acceptance "

Appendix A (Normative)Abrasion Test Methods

Appendix C (Normative)Cavitation Resistance Method

Appendix D(Normative) Quality Requirement for Iron Ore Hydraulic Concrete

Appendix E (Normative)Quality Requirement for Cast Stone as

Aggregate for Hydraulic Concrete

This standard is made according to the requirement of siNotice on Development and Revision Plan of Industrial Standards in 2001" (Document No.44, 2001) issued by the State Economy and Trade Commission.
　　The discharge structure is an important structure concerning engineering safety in water resources and hydropower project. As a whole, the discharge structures constructed in China are safe. But the damages caused by abrasion and cavitation erosion to the discharge structures have been often encountered. These damages have not only affected the safe operation of the structure directly or indirectly, but also resulted in a huge repair cost. Under these circumstances this Standard is made based on the experiences of past decades in abrasion and cavitation resistance for discharge structures in China, the study of relevant foreign standards and references, and some test results.