High Performance Concrete Presentation

A presentation on High Performance Concrete - High performance concrete is a concrete mixture, which possess high durability and high strength when compared to conventional concrete.

1. A SEMINAR ON HIGH PERFORMANCE CONCRETE SUBMITTED TO - PRESENTED BY- MR. GOURAV SANKET JAIN

2. HIGH PERFORMANCE CONCERTE

3. HIGH PERFORMANCE CONCERTE A CONCRETE WHICH MEETS SPECIAL PERFORMANCE AND UNIFORMITY REQUIREMENTS THAT CANNOT ALWAYS BE ACHIEVED ROUTINELY BY USING ONLY CONVENTIONAL MATERIALS AND NORMAL MIXING,PLACING AND CURING PRACTICES .

4. FEATURES HIGH WORKABILITY HIGH COMPRESSIVE STRENGTH SEVERE ENVIRONMENT COST

5. SELECTION OF MATERIALS CEMENT Little amount of C 3 A Finely grounded FINE AGGREGATES River Sand & Construction stones Minimum void ratio Coarse Sand

6. COARSE AGGREGATE   Strongest component Cubic in Shape Size not exceeding 20MPa Not Flaky or elongated WATER Must be pure

7. CHEMICAL ADMIXTURES Improves Workability Decrease in water requirement Types of Chemical Admixtures Plasticizers Super plasticizers Retarders Air entraining agents

8. MINERAL ADMIXTURES Fly Ash Silica Fumes Carbon Black powder Gypsum based admixtures

9. BEHAVIOUR OF FRESH HPC WORKABILITY Very Good Pumped very well Without segregation and voids. SETTING TIME Depends on application Water reducing admixtures

10. BEHAVIOUR OF HARDENED HPC SHORT TERM PROPERTIES : Compressive Strength Tensile Strength LONG TERM PROPERTIES : Durability Permeability

11. STRENGTH STRENGTH DEPENDS ON - CONSTITUENT   MATERIALS METHOD OF TESTING RATE OF LOADING CURING TECHNIQUES

12. COMPRESSIVE STRENGTH 28 DAYS STRENGTH UPTO 80 Mpa 90 DAYS STRENGTH UPTO 130 Mpa FUTURE-140MPa

13. TENSILE STRENGTH GOVERNS THE CRACKING   BEHAVIOUR   DIRECT TENSILE TEST SPLIT TENSILE TEST

14. DURABILITY CHARACTERISTICS LOW PERMEABILITY STEEL PROTECTED ABRASION RESISTANCE

15. APPLICATIONS BRIDGES HIGH RISE BUILDINGS TUNNELS PAVEMENTS

16. ADVANTAGES OF HPC Increase in the speed of construction High Workability & Pump ability Service life more than 100 years Low shrinkage & high strength High compressive strength

17. NORMANDIE BRIDGE IN FRANCE

18. CONFEDERATION BRIDGE CANADA

19. GREEN BELT BRIDGE DENMARK

20. LIMITATIONS Manufactured and must be placed carefully Extended quality control is required Experienced supervision.