Why we use Cover Block ? Type of Cover Block ? What is Nominal Cover vs clear Cover | By CivilGuruji

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  • čas přidán 11. 02. 2021
  • #civilguruji​ #civilengineerstraininginstitute​ #practicalsitetraining​
    Why we use Cover Block ? Type of Cover Block ? What is Nominal Cover vs clear Cover
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    About This Video
    In This video Er. Sudeep Kumar Agrawal, Corporate Trainer Of Civil Guruji (Civil Engineer Training Institute) is explaining Why we use Cover Block ? Type of Cover Block ? What is Nominal Cover vs clear Cover
    Concrete cover means the distance between the outer surface of the concrete and the outermost layer of reinforcement in the concrete. A Concrete cover block is basically a spacer that is used to lift the rebar matrix off the ground so that concrete may flow below the rebar.In order to prevent corrosion of the rebar,it has to be totally sheathed in concrete.It usually needs about 2 to 3 inches of coverage on all sides.
    Concrete cover does not have a structural function its purpose is to prevent damage occurring to the building part. It ensures that the concrete encases the steel on all sides so that it is not exposed to the external air.If the cover is insufficient the concrete can flake off. The steel is then no longer covered and may corrode.
    The building part is damaged fundamentally in the long term and this can lead to failure. Cover should not be less than 15 mm, and is generally between 20- and 25-mm. Cover Blocks are now becoming more common at constructions sites. As it strengthens the roof top and also beam.
    CLEAR COVER TO MAIN REINFORCEMENT:
    1.FOOTINGS: 50 mm
    2.RAFT FOUNDATION.TOP: 50 mm
    3.RAFT FOUNDATION.BOTTOM/SIDES: 75 mm
    4.STRAP BEAM: 50 mm
    5.GRADE SLAB: 20 mm
    6.COLUMN: 40 mm
    7.SHEAR WALL: 25 mm
    8.BEAMS: 25 mm
    9.SLABS: 15 mm
    10.FLAT SLAB: 20 mm
    11.STAIRCASE: 15 mm
    12.RET. WALL: 20/ 25 mm on earth
    13.WATER RETAINING STRUCTURES: 20/30 mm
    The concrete cover also ensures fire safety, as the concrete keeps the heat away from the sensitive steel. As with the outside cover, a distance must be kept within the building part between the steel bars.
    This distance must be at least 2 cm, and it should never be less than the diameter of the largest bar. Depending on the aggregate size, even greater distances may be necessary. If an internal vibrator is to be used to compact the concrete, sufficiently large gaps must be provided.
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Komentáře • 26

  • @elwindhan6423
    @elwindhan6423 Před 3 lety

    Thank you sir ....bahut hi ache se btaye

  • @srinivaskunchala7177
    @srinivaskunchala7177 Před 2 lety

    Good morning sir, what is the minimum spacing according to IS Code for different building elements?

  • @mohdghazi3383
    @mohdghazi3383 Před 2 lety

    Thanks Sir. Nice info..

  • @hrusikeshpatra2864
    @hrusikeshpatra2864 Před rokem

    Sir pvc or plastic ka cover concrete cover ke jese load le payega kya or uska strength kitni honi chahiye kese pata chalega

  • @harendrakumarchaudhary

    Very good sir ji 👍👍👍👍

  • @jekiramreang5650
    @jekiramreang5650 Před 3 lety

    (B.Tech) civil engeenering mein admission lene keliye eligibility kya hona chahiye Sir

  • @deeppatel5206
    @deeppatel5206 Před 3 lety

    bhai video me aap thoda side me jake boliye
    because information nahi dikha rahi
    ham lok screenshot kese le

  • @rajendramahajan9762
    @rajendramahajan9762 Před 3 lety +1

    Thank you Sir

    • @Civil_Guruji
      @Civil_Guruji  Před 3 lety

      Most welcome Rajendra ji .CIVIL GURUJI is always there to help...keep learning and keep supporting us ..For further detail contact us in 9111001234

  • @manishchaurasiya7196
    @manishchaurasiya7196 Před 3 lety +2

    Sir je (diploma) site engineer ko kya Karna hota hai site per

    • @Muddassarshah969
      @Muddassarshah969 Před 24 dny

      Site py different kam
      Hoty depend krta hai site py different project ko dakhna hota or kam ko dakhna hota hai k drwaing k
      Mutabiq ho rha hai .

  • @TSW-TheSahaniWorld
    @TSW-TheSahaniWorld Před rokem +1

    What is the meaning of "clear cover to main reinforcement''.If we talk about column then is it clear distance between concrete outer face to main bar or rings bar?

    • @Civil_Guruji
      @Civil_Guruji  Před rokem

      Please watch this video 👇
      czcams.com/video/AMyIyyUgjNw/video.html
      Hope this video will help you.

  • @rinkukumar10299
    @rinkukumar10299 Před 3 měsíci +1

    Cover block me beech me hole kyo hota h

  • @aditlapcha8260
    @aditlapcha8260 Před 3 lety +1

    roj sap bahot nice video leke aate he. tq sir very nice video. cops 9847 me mileaga

    • @dhruvpanchal2250
      @dhruvpanchal2250 Před 3 lety

      bhai ourse acha hai?..kuch sikhne ko mila..practical knowledge?

  • @navneetanand6070
    @navneetanand6070 Před 3 lety +1

    Sir thora dhire padhate to or achha hota

  • @md.miltonhossain7142
    @md.miltonhossain7142 Před rokem +1

    Thanks a lot. Sir, I am Milton Hossain from Bangladesh.
    Just i have completed a 3 story built foundation work. Here i have provided 50mm cover block. For grade beam how much cover block will i provide? The beam will be made above 3 feet from ground level.

    • @Civil_Guruji
      @Civil_Guruji  Před rokem

      Welcome Md.Milton Hossain
      Hame bahut khusi hai ki aapko hamari mehnat pasand aai , Civilguruji isi tarah civil engineers ko aage badhane ke liye mehnat karte rahega aur aap bhi knowledge dusro ko share karte rahe.
      KEEP LEARNING, KEEP SHARING.

    • @md.miltonhossain7142
      @md.miltonhossain7142 Před rokem

      @@Civil_Guruji for grade beam covering 25-30mm is it enough?

  • @hasnainmhr3763
    @hasnainmhr3763 Před 3 lety

    Sir completed information give in this channel not give uncompleted information.buy course not say

  • @civilcreators6420
    @civilcreators6420 Před rokem

    Sir how we can calculate qty of cover block

  • @lbdubeyst9821
    @lbdubeyst9821 Před rokem

    सर अपना मो नंबर दे दीजिये, वीडियो बहुत अच्छा लगता है

    • @Civil_Guruji
      @Civil_Guruji  Před rokem

      Hello Lbdubey St
      Please call 9111001234, hamari team apko guide kar dengi.