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What are the major Factor Affecting Concrete life?

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Asked: May 29, 20202020-05-29T19:45:40+05:30 2020-05-29T19:45:40+05:30In: Civil Engineering Jobs
vsandeep577@gmail.com
vsandeep577@gmail.com

vsandeep577@gmail.com

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vsandeep577@gmail.com Beginner

What is the major factor affecting concrete life, durability & strength?

 

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  1. nikeetasharma

    nikeetasharma

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    nikeetasharma Guru
    2020-10-09T23:35:30+05:30Added an answer on October 9, 2020 at 11:35 pm

    The major factor affecting the concrete life, durability, etc are given below ;

    1. High humidity and Rain
    2. Ultraviolet resistance
    3. Chemical Resistance
    4. Seawater exposure
    5. Chloride resistance and steel corrosion
    6. Sulfate resistance
    7. Resistance to Alkali-silica reaction (ASR)
    8. Carbonation
    9. Abrasion Resistance
    10. Moderate to severe exposure condition for concrete
    11. Resistance to freezing and Thawing
    12. Cement Content
    13. Aggregate quality
    14. Water Quality
    15. Concrete compaction
    16. Placing time after batching and cold joint formation
    17. Curing period
    18. Permeability
    19. Temperature
    20. Construction defects (honeycombs, cracks, etc.)

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  2. poojan

    poojan

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    poojan Learner
    2020-05-29T21:03:45+05:30Added an answer on May 29, 2020 at 9:03 pm

    Please refer this article, it will give you great insight for your question

     

    https://test.theconstructor.org/concrete/factors-affecting-durability-concrete/1115/

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  3. Rohan Chaugule

    Rohan Chaugule

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    Rohan Chaugule Expert
    2020-06-18T21:54:12+05:30Added an answer on June 18, 2020 at 9:54 pm

    From my point of view, the major factor affecting the Concrete durability, strength, is the quality of the materials used i.e., Fine Aggregates, Cement, Coarse Aggregate, and the water used. One direct indicator of the quality of materials is the Specific gravity, Other tests and parameters that are necessary are fineness modulus, hardness test, setting time, compaction factor, initial setting, final setting, bulk modulus and Swelling Properties of sand and coarse aggregates. Also, the tests important for Cement are fineness and soundness, slump test, Spread test.

    The water used for mixing the concrete should be potable, and even if not potable water, the contaminants or the undesirable salts and minerals present in water should be within the prescribed limits as per IS codes. All the tests that will be conducted should be strictly according to the prescribed IS codes.

    if these tests and parameters are fulfilled and if all materials have passed the test, the furthers factors which will affect are:

    1. design considerations
    2. design life
    3. exposure conditions
    4. usage patterns of the structure
    5. factor of safety applied
    6. reinforcement
    7. the type of cement used
    8. the extent to which the codes are followed.
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  4. dbnalawade

    dbnalawade

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    dbnalawade AUTHOR
    2020-07-31T11:08:17+05:30Added an answer on July 31, 2020 at 11:08 am

    Strength is one indicator of durability of concrete.

    Other properties that make concrete durable  are :

    • chloride and sulphate limits .
    • Water absorption characteristics.

    Check your project specifications for these limits.  Chloride limit of 0.3% and Sulphate limit of 4%  were specified for structural concrete on one job I worked.

    Chloride limit could be as low as 0.06% for prestressed concrete.

    In addition to above measures, durability comes from :

    • Good quality of aggregates having specific gravity of 2.6 and above .
    • Low absorption aggregates – less than 2%
    • Aggregates should meet gradation requirements.

    Proper design mix, Consistent production of good quality concrete , concreting techniques, curing and good testing regime are also required in addition to above efforts.

    Hope this helps.

     

     

     

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  5. Vivek Patel

    Vivek Patel

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    Vivek Patel User
    2020-07-31T15:24:44+05:30Added an answer on July 31, 2020 at 3:24 pm

    Fector affecting of concrete life is

    1. Design philosophy.
    2. Important fector of design.
    3. Type of cement used.
    4. Type of reinforcement used.
    5. Local weather condition.
    6. Earthquake probability.
    7. Construction prectice.
    8. Quality control of construction.
    9. Annual repair frequently or not etc

    Basically cement concrete structures life is more than 50 year.

    Bridge have 75-100 year life.

    Residential building have 50+ year life

    Dam and multipurpose project have 150 year design life .

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  6. Komal Bhandakkar

    Komal Bhandakkar

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    Komal Bhandakkar AUTHOR
    2020-11-26T22:20:47+05:30Added an answer on November 26, 2020 at 10:20 pm

    Here I am discussing about

    High humidity & rain.

    Actually, the compressive strength of concrete reduces with the high relative humidity which results in durability problem.

    Due to higher moisture in the surface of concrete results a growth of mold and bacteria.

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