this presentation shows the impact of nanotechnolgy in civil engineering

1. IN CIVIL ENGINEERING

2. WHAT IS NANO TECHNOLOGY….. ??? &WHAT IS ITS IMPACT IN CIVIL ENGINEERING ……???

3. NANOTECHNOLOGY IS THE USE OF VERY SMALL PARTICALS OF MATERIALS EITHER BY THEMSELVES OR BY THEIR MANIPULATION TO CREATE THE NEW LARGE SCALE MATERILAS. NANOMETER IS A BILLIONTH OF A METER . DECISIVE MATERIALS PROPERTIES CAN BE DELIBERATELY IMPROVED BY INTRODUCING CHARATERISTICS STRUCTURES ON THE NANO SCALE THE CONSTRUCTION BUSINESS WILL INEVITABLY BE A BENIFICARY OF THIS NANOTECHNOLOGY :INFACT IT’S ALREADY IN THE FIELDS OF …….

5. GLASS

6. STEEL

8. AT THE BASIC SCIENCE LEVEL,MUCH ANALYSIS OF CONCRETE IS BEING DONE AT THE NANO-LEVEL IN ORDER TO UNDERSTAND ITS STRUCTURE USING THE VARIOUS TECHNIQUES DEVELOPED FOR STUDY AT THAT SCALE. CONCRETE IS AFTER ALL ,MACRO-MATERIAL STRONGLY INFLUENCED BY ITS NANO-PROPERTIES AND UNDERSTANDING IT AT THIS NEW LEVEL IS YIELDING NEW AVENUE’S FOR IMPROVEMENT OF STRENGTH,DURABLITY & MONITERING . NANOTECHNOLOGY IN CONCRETE

10. TITANIUM DIOXIDE.

17. NANOTECHNOLOGY IN STEEL

19. CABLES

20. JOINTS

21. WELLSNANO IN STEEL

23. STRESS RISERS ARE RESPONSIBLE FOR INICIATING CRACKS FROM WHICH FATIGUE FAILURE RESULTS THAT THA ADDITION OF COPPER NANO PARTICALS REDUCES THE SURFACE UNEVENNESS OF STEEL WHICH THEN LIMITS TO THE NUMBER OF STRESS RISES HENCE FATIGUE CRACKINGFATIGUE

24. CABLE:THE REFINEMENT OF THE PHASE OF STEEL TO ANANO SIZE HAS PRODUCED STRONGER CABLES HIGH STRENGH STEEL CABLES BEING USED IN CAR TYRES ARE USED IN BRIDGE CONSTRUCTION AND PRE CASTING CONCRETE. JOINTS:HIGH –RISE STRUCTURE REQUIRE HIGH STRENGTH JOINTS THIS INTURN LEADS TO NEED FOR HIGH STRENGH BOLTS WHICH ARE GENERALLY GONE THROUGH QUENCHING AND TEMPERING MARTENSITE. CABLES,JOINTS &WELDS

25. WHEN THIS EXCEED 1200MPA EVEN A VERY SMALL AMOUNT OF HYDROGEN EMBRITTLES THE GRAIN BOUNDRAIES AND MAY FAIL DURING USE WHEN NANO PARTICLES LIKE VANARIUM AND MOLYBDENUM NANO PARTICLE SHOWN DELAY FRACTURE PROBLEMS. WELDS:AND HEAT EFFECTED ZONES ADJUCENT TO WELLS CAN BE BRITTLE AND FAIL WITHOUT WARNING WHEN SUBJECTED TO SUDDEN DYNAMIC LOAD WHEN ADDITION OF NANO PARTICLES OF MAGNICIUM AND CALICIUM MAKES (HAZ)GREEN FINER IN PLATES STEEL.THAT INCREASE WELD THOUGHNESS.

26. MMFX2 SANDVIK NANOFLEX

27. NANOTECHNOLOGY IN COATINGS

28. NANO TECHNOLOGY IS BEING APPLIED TO PAINTS AND INSULATING PROPERTIES,PRODUCED BY THE ADDITION OF NANO-SIZE CELLS ,PORES AND PARTICLES ,GIVING VERY LIMITED PATH FOR TURMAL CONDUCTION ARE CURRENTLY AVAILABLE. THIS TYPE OF PAINT IS USED AT PRESENT FOR CORROSION PROTECTION UNDER INSOLATION SINCE IT IS HYDROFOBIC AND REPLES WATER. TIO2 AS KNOWN ……. NANO IN COATING

29. NANOTECHNOLOGY AND FIRE PROTECTION

30. NANOTECHNOLOGY & FIRE PROTECTION NANO CEMENT HAS THE POTENTIAL TO CREATE A NEW PARADIGM IN THIS AREA CAN BE USED AS TOUGH,DURABLE HIGH TEMPARATURE COATING THIS IS ACHIVED BY MIXING CNT’S WHICH CEMENT MATERIAL TO FABRICATE FIBER COMPOSITES WHICH RESULTS OUTSTANDING PERFORMANCES . POLY PROPOLINE ALSO ARE BEING CONSIDER AS THE METAL OF INCREASING FIRE RESISTANCE AND THIS IS CHEAPER OPTION THAN CONVENTIONAL

31. “ NANOTECHNOLOGY IN CIVIL ENGINEERING IS DEFINITELY THE PRESENT AND THE FUTURE”

33. NANO CEMENT ,STEEL AND CONSTRUCTION INDUSTRIES CONFERENCE:-WWW.NANOCON.SABRYCORP.COM BY M. PARIKSHIT B.SAMEER CHARAN “REFERENCES”