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Maulik vavaliya
Maulik vavaliya

Maulik vavaliya

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What are the different types of steel stacks?

  1. Preet Chovatiya

    Preet Chovatiya

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    Preet Chovatiya Learner

    There are four types of steel stack that generally used in steel stack are as below: Freestanding (Self-supported) steel stack (fig.1) The base support and guyed steel stack (fig.2) The base support and braced steel stack Multi flue stack (fig.3) [caption id="attachment_45199" align="alignnone" widtRead more

    There are four types of steel stack that generally used in steel stack are as below:

    1. Freestanding (Self-supported) steel stack (fig.1)
    2. The base support and guyed steel stack (fig.2)
    3. The base support and braced steel stack
    4. Multi flue stack (fig.3)

    fig.1

    fig.2

    fig.3

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vivek gami
vivek gami

vivek gami

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What is difference between site plan and layout plan?

  1. nikeetasharma

    nikeetasharma

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    The site layout is the part of the site plan. The site layout is the part of the construction plan that focuses mainly on the physical space of the construction site and the layout plan includes physical management of the things.

    The site layout is the part of the site plan. The site layout is the part of the construction plan that focuses mainly on the physical space of the construction site and the layout plan includes physical management of the things.

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vivek gami
vivek gami

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What is Pickup Weir Structure? Why its call pickup? Where it is use?

  1. nikeetasharma

    nikeetasharma

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    nikeetasharma Guru

    Weirs are fixed barriers across a river or stream that force water to flow over their tops, where the height of the water above the weir can be used to calculate flow.

    Weirs are fixed barriers across a river or stream that force water to flow over their tops, where the height of the water above the weir can be used to calculate flow.

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Vivek Patel
Vivek Patel

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What is the diffrence between lap length and development length?

  1. nikeetasharma

    nikeetasharma

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    lap length is required when bars placed short of their required length (due to nonavailability of longer bars) need to be extended. lap length is to be provided to safely transfer the load. Development length is provided to transfer the load from steel to concrete. It is also known as anchorage lengRead more

    lap length is required when bars placed short of their required length (due to nonavailability of longer bars) need to be extended. lap length is to be provided to safely transfer the load.

    Development length is provided to transfer the load from steel to concrete. It is also known as anchorage length.

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Asked: In:
Nimesh Gajera
Nimesh Gajera

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There are laboratory tests to determine the quality of material, but I want to know how anyone should check the quality of material on the actual construction site?

  1. vivek gami

    vivek gami

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    vivek gami User

    yes obviously for cement on cement bag some standard information should be printed like the type of cement, pozzolana content, IS code of that type, week of packing, it should have a greenish color it should give smooth feeling when putting your hand in cement bag and doesn't present any lumps WhenRead more

    yes obviously

    for cement

    on cement bag some standard information should be printed like the type of cement, pozzolana content, IS code of that type, week of packing,

    it should have a greenish color

    it should give smooth feeling when putting your hand in cement bag and doesn’t present any lumps

    When it throw on the water surface, it should stay on the surface before the sink for some time.

    cement bag should be used within three months of manufacturing

    for sand

    Basically, we check clay content in the sand by sand, taken in hand, and rub it. If there is clay is present, then particular clay sticks with hand moisture so we can observe easily.

    sand should be washable

    We can also check its uniformity by sieve if it’s present on site.

    aggregate

    aggregate should have well-graded we can check it by check packing (interlocking structure ) of it

    aggregate should not have any clay contain

     

    and other material we can check it by various experience .

     

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vivek gami
vivek gami

vivek gami

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What is boundry line in plan of construction site?

  1. Komal Bhandakkar

    Komal Bhandakkar

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    Komal Bhandakkar AUTHOR
    What is boundry line in plan of construction site?

    Boundary line : Definition of boundary line : A  boundary line is defined as a boundary presumed to exist between two buildings on the same site. The boundary of the land which belongs to a building or where the land abuts a road, Railway, Canal, river and Centre Line of road, railway, canal and rivRead more

    Boundary line :

    Definition of boundary line :

    A  boundary line is defined as a boundary presumed to exist between two buildings on the same site.

    • The boundary of the land which belongs to a building or where the land abuts a road, Railway, Canal, river and Centre Line of road, railway, canal and river.
    • A relevant boundary is a boundary or National boundary that one side of the building faces  and that is parallel or at an angle of a maximum of 80 degrees on that side of the building
    • A national boundary is a boundary presumes to exist between two buildings on the same site

    (Above image of boundary line will definitely clear your doubt.)

     

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Asked: In:
vivek gami
vivek gami

vivek gami

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What is bacterial concrete? Which are the area of application of bacterial concrete?  

  1. nikeetasharma

    nikeetasharma

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    The principle of bacteria based self healing concrete is that carbonate precipitating bacteria are added into the concrete during the mixing process. When cracking occurs, the bacteria will be activated to precipitate CaCO3 to in-situ heal concrete cracks. Bacillus Megaterium bacteria were used in cRead more

    The principle of bacteria based self healing concrete is that carbonate precipitating bacteria are added into the concrete during the mixing process. When cracking occurs, the bacteria will be activated to precipitate CaCO3 to in-situ heal concrete cracks.

    Bacillus Megaterium bacteria were used in concrete and results shows 24% increase in compressive strength. The deposition of calcium carbonate in concrete by Bacillus Sphaericus improves the durability of concrete.

    Therefore, bacterial concrete is a product that will biologically produce limestone to heal cracks that appear on the surface of concrete structures.

    These self healing agents can lie dormant with in the concrete for up to 200 years.

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Nimesh Gajera
Nimesh Gajera

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How to determine the specific gravity of aggregates? What are the uses of specific gravity in actual work?

  1. DevilAVRT

    DevilAVRT

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    DevilAVRT Beginner

    Test for Determination of Specific Gravity Indian Standard Specification IS: 2386 (Part III) of 1963 gives various procedures to find out the specific gravity of different sizes of aggregates. The following procedure is applicable to aggregate size larger than 10 mm. A sample of aggregate not less tRead more

    Test for Determination of Specific Gravity

    Indian Standard Specification IS: 2386 (Part III) of 1963 gives various procedures to find out the specific gravity of different sizes of aggregates. The following procedure is applicable to aggregate size larger than 10 mm. A sample of aggregate not less than 2 kg is taken. It is thoroughly washed to remove the finer particles and dust adhering to the aggregate. It is then placed in a wire basket and immersed in distilled water at a temperature between 22° to 32°C. Immediately after immersion, the entrapped air is removed from the sample by lifting the basket containing it 25 mm above the base of the tank and allowing it to drop 25 times at the rate of about one drop per sec. During the operation, care is taken that the basket and aggregate remain completely immersed in water. They are kept in water for a period of 24 ± 1/2 hours afterwards. The basket and aggregate are then jolted and weighed (weight A1) in water at a temperature 22° to 32° C. The basket and the aggregate are then removed from water and allowed to drain for a few minutes and then the aggregate is taken out from the basket and placed on dry cloth and the surface is gently dried with the cloth. The aggregate is transferred to the second dry cloth and further dried. The empty basket is again immersed in water, jolted 25 times and weighed in water (weight A2). The aggregate is exposed to atmosphere away from direct sunlight for not less than 10 minutes until it appears completely surface dry. Then the aggregate is weighed in air (weight B). Then the aggregate is kept in the oven at a temperature of 100 to 110°C and maintained at this temperature for 24 ± 1/2 hours. It is then cooled in the air-tight container, and weighed (weight C).

    Specific Gravity = C / B − A; Apparent Sp. Gravity = C / C− A

    Water absorption = 100 (B − C) / C

    Where, A= the weight in gm of the saturated aggregate in water (A1 – A2),

    B = the weight in gm of the saturated surface-dry aggregate in air, and

    C = the weight in gm of oven-dried aggregate in air.

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