DZ/T 0276.5-2015Regulation for testing the physical and mechanical properties of rock. Part 5: Test for determining the water absorption of rock (English PDF)

Foreword

DZ/T 0276 "Testing Procedures for Physical and Mechanical Properties of Rocks" is divided into 31 parts.

--- Part 1. General and general provisions;

--- Part 2. Rock moisture test;

--- Part 3. Rock particle density test;

--- Part 4. Rock density test;

---Part 5. Rock water absorption test;

---Part 6. Rock hardness test;

--- Part 7. Rock gloss test;

--- Part 8. Rock antifreeze test;

---Part 9. Rock resistance to disintegration test;

--- Part 10. Rock expansion test;

--- Part 11. Rock erosion test;

--- Part 12. Rock acid and alkali resistance test;

--- Part 13. Rock specific heat test;

--- Part 14. Rock thermal conductivity test;

---Part 15. Rock breakdown voltage and breakdown strength test;

---Part 16. Rock volume resistivity and surface resistivity test;

--- Part 17. Rock radioactivity specific activity test;

---Part 18. Rock uniaxial compressive strength test;

---Part 19. Rock uniaxial compression deformation test;

--- Part 20. Rock triaxial compression strength test;

--- Part 21. Rock tensile strength test;

--- Part 22. Rock flexural strength test;

--- Part 23. Rock point load strength test;

--- Part 24. Rock acoustic wave velocity test;

---Part 25. Rock shear strength test;

--- Part 26. Rock mass deformation test (bearing plate method);

--- Part 27. Rock mass deformation test (drilling deformation method);

---Part 28. Rock mass strength test (direct shear test);

--- Part 29. Rock mass strength test (bearing plate method);

--- Part 30. Rock mass bolt load test;

--- Part 31. Rock sound wave velocity test.

This part is the fifth part of DZ/T 0276.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces DY-94 "Testing procedures for physical and mechanical properties of rocks 5. Water absorption and saturated water absorption test". This part and DY-94 in comparison, the main technical changes are as follows.

--- Added three chapters of "normative reference documents", "terms and definitions", and "principles";

--- Increased the "boil method" to measure the saturated water absorption rate;

--- Modified rock water absorption test and saturated water absorption test record table.

This part is proposed by the Ministry of Land and Resources of the People's Republic of China.

This part is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93).

1 Scope

This part of DZ/T 0276 specifies free water immersion, boiling and vacuum pumping to determine rock water absorption and rock saturation absorption.

Water rate.

This part is applicable to the water absorption test of rock without disintegration, insolubilization and non-drying and swelling in rock physical and mechanical properties test.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

DZ/T 0276.2 Test procedures for physical and mechanical properties of rocks - Part 2. Rock moisture test

3 Terms and definitions

The following terms and definitions apply to this document.

Absorption rate

The ratio of the mass of the water absorbed by the rock sample under normal pressure and normal temperature to the mass of the solid of the sample is expressed as a percentage.

Saturated water absorption watersaturatedabsorption the ratio of the mass of the maximum inhaled water of the sample to the mass of the solid of the sample under high pressure or vacuum conditions, expressed as a percentage.

4 Principle

The sample is freely immersed in water under normal pressure and normal temperature to achieve saturation or forced saturation under high pressure and vacuum conditions, and the test before and after saturation is measured.

Sample quality, calculate water absorption or saturated water absorption.

5 Instruments

5.1 Diamond machine, stone cutting machine, stone grinding machine, etc.

5.2 Drying box.

5.3 Dryer.

5.4 Balance. The maximum weighing value is.2000g, and the reading accuracy is 0.01g.

5.5 Sink.

5.6 Vacuum extraction equipment and boiling equipment.