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QUALITY CONTROL OF CONSTRUCTION MATERIALS

QUALITY CONTROL OF CONSTRUCTION MATERIALS. by. K. RAMESH. Research Officer, Engineering Materials Laboratory, A.P. Engineering Research Laboratories, Himayatsagar, HYDERABAD-500030. Construction materials. Cement Aggregates (Fine & Coarse) Water

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QUALITY CONTROL OF CONSTRUCTION MATERIALS

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  1. QUALITY CONTROL OF CONSTRUCTION MATERIALS by K. RAMESH Research Officer, Engineering Materials Laboratory, A.P. Engineering Research Laboratories, Himayatsagar, HYDERABAD-500030.

  2. Construction materials • Cement • Aggregates (Fine & Coarse) • Water • Steel Reinforcement • Cement Concrete

  3. Categories of I.S. Codes • Codes which give specifications • Codes which give methods of tests

  4. Important I.S. Codes

  5. Tests on cement(Physical Tests) • Standard consistency • Setting times (Initial and Final ) • Compressive strength • Fineness • Soundness • Specific Gravity

  6. Tests on cement(Chemical Tests) • Ratio of percentage of lime to percentages of silica, alumina and iron oxide • Ratio of percentage of alumina to percentage of iron oxide • Insoluble residue, percent by mass • Magnesia, percent by mass • Total sulphur content, percent by mass • Total loss on ignition • Total chloride content –

  7. Tests on fine aggregate • Sieve analysis • Deleterious materials • Soundness • Specific Gravity

  8. Tests on coarseaggregate • Sieve analysis • Flakiness index • Elongation index • Deleterious materials • Impact value • Crushing value • Abrassion value • Soundness • Specific gravity • Alkali aggregate reactivity

  9. Tests on water • Neutralization • Organic solids • Inorganic solids • Sulphates • Chlorides • Suspended matter

  10. Tests on steelreinforcement(Physical Tests) • Tensile test • Bend test • Rebend test • Bond test

  11. Tests on steelreinforcement(Chemical Tests) • Chemical composition (Carbon, Sulphur, Phosporous, Sulphur & Phosporous)

  12. Tests on cement concrete(Strength Tests) • Compressive strength • Flexure strength • Modulus of elasticity

  13. Tests on cement concrete(Workability & Other Tests) • Slump test • Compaction factor test • Vee-bee test • Analysis of freshly mixed concrete • Density • Yield • Air content • Cement content of hardened concrete • Drying shrinkage • Moisture movement

  14. THE END

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