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GB / T50081-2019 Standard for Test Methods of Physical and Mechanical Properties of Concrete.pdf

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2019-10-11
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Building Standard Code
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Brief introduction of the data: According to the requirements of the Ministry of Housing and Urban-Rural Development's Notice on Printing and Distributing the <2015 Project Development Standards and Standards Formulation and Revitalization Plan> (Jianbiao [2014] No. 189), the standard preparation group has been extensively adjusted and studied. 2. Strictly summarize practical experience, refer to relevant international standards and advanced foreign standards, and revise this standard on the basis of extensive consultation. The main technical contents of this standard are: 1. General I2. Terms and Symbols; 3. Basic Provisions; 4. Preparation and Maintenance of Test Pieces; 5. Compressive Strength Test; 6. Axial Compressive Strength Test; 7. Force Compression elastic anvil test; 8. Poisson's ratio test; 9. Splitting tensile strength test; 10. Flexural strength test; 1; axial tensile test; 12. Grip strength test of concrete and steel bar; 13. Concrete bond strength test; 14. Abrasion resistance test; 15. Thermal conductivity test; 16. Thermal conductivity test; 17. Specific heat capacity test; 18. Linear expansion coefficient test; 19. Hardened concrete density test; 20. Water absorption Rate test. The main contents of this standard are: 1. Added terms and symbols: 2. Added basic requirements for r; 3. Manufacture and maintenance of concrete specimens in the original standard, compressive strength test, axial compressive strength test, The static reported elastic modulus site test, split tensile strength test, and flexural strength test were modified and improved; 4. Poisson's ratio test method was added; 5. Axial tensile test method was added; 6. Added M-wrapping strength test method for concrete and steel bar: 7. Added concrete bond strength test method; 8. Added resistance test method; 9. Added thermal conductivity test method; 10. Added thermal conductivity test Methods; 11. Increased the specific heat capacity test force method "12. Increased the linear expansion coefficient test method; 13 • Increased / hardened concrete density test method;
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