Detail of JGJ 52-2006

Introduction of JGJ 52-2006

1.0.1 This standard is formulated with a view to rationally utilize natural sand, artificial sand, crushed stone and gravel in the ordinary concrete so as to guarantee their quality. 1.0.2 This standard is applicable to the quality requirements and test methods of sand and crushed stone for ordinary concrete used in industrial/civil buildings and structures. 1.0.3 Alkali reactivity test shall be conducted for sand and crushed stone which is to be used for important concrete structures long in damp environment. 1.0.4 As for the quality requirements and testing of sand and crushed stone, not only the requirements stipulated in this standard, but also those in the current relevant ones of the nation shall be complied with.

Contents of JGJ 52-2006

1 General Rules 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Quality Requirements 3.1 Quality Requirements of Sand 3.2 Quality Requirements of Crushed Stone 4 Acceptance, Transportation and Stacking 5 Sampling and Division 5.1 Sampling 5.2 Division of Specimen 6 Test Method of Sand 6.1 Mesh Analysis Test of Sand 6.2 Apparent Density Test of Sand (standard method) 6.3 Apparent Density Test of Sand (simple method) 6.4 Water Absorption Test of Sand 6.5 Bulk Density Test and Tight Density Test of Sand 6.6 Water Ratio Test of Sand (standard method) 6.7 Water Ratio Test of Sand (rapid method) 6.8 Dust Content Test of Sand (standard method) 6.9 Dust Content Test of Sand (siphon method) 6.10 Clay Lump Content Test of Sand 6.11 Crusher Dust Content Test of Artificial Sand and Mixed Sand (methylene blue method) 6.12 Crushing Value Index Test of Artificial Sand 6.13 Organic Content Test of Sand 6.14 Mica Content Test of Sand 6.15 Light Material Content Test of Sand 6.16 Soundness Test of Sand 6.17 Sulfate and Sulfide Content Test of Sand 6.18 Chloride Ion Content Test of Sand 6.19 Shell Content Test of Sea Sand (hydrochloric acid cleaning method) 6.20 Sand Alkali-active Test (Rapid Method) 6.21 Sand Alkali-active Test (Mortar Length Method) 7 Test Methods of Crushed Stone (or Gravel) 7.1 Screen Analysis Test for Crushed Stone (or Gravel) 7.2 Apparent Density Test of Crushed Stone (or Gravel) (Standard Method) 7.3 Apparent Density Test of Crushed Stone (or Gravel) (Survey Method) 7.4 Water Content Test of Crushed Stone (or Gravel) 7.5 Water Absorption Test of Crushed Stone (or Gravel) 7.6 Bulk Density and Tight Density Test of Crushed Stone (or Gravel) 7.7 Mud Content Test in Crushed Stones (or Gravels) 7.8 Clay Lump Content Test in Crushed Stones (or Gravels) 7.9 Total Content Test of Elongated and Flaky Particle in Crushed Stones (or Gravels) 7.10 Organic Matter Content Test in Gravels 7.11 Soundness Test of Crushed Stone (or Gravel) 7.12 Compressive Strength Test of Rock 7.13 Crushing Value Index Test of Crushed Stone (or Gravel) 7.14 Sulfide and Sulfate Content Test of Crushed Stone (or Gravel) 7.15 Alkali-active Test of Rushed Stone or Gravel (Lithofacies Method) 7.16 Alkali-active test of rushed stone or gravel (rapid method) 7.17 Alkali- reactive test of crushed stone or gravel (mortar length method) 7.18 Alkali-active Test for Carbonate Aggregate (Rock Column Method) Annex A Sand Inspection Report Table Annex B Stone Inspection Report Table Word Explanations