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Asked: May 20, 2021In: Transportation

What must be the maximum dry density of Granular Sub Base & Wet Mix Macadam used in Road Construction?

Gopal Mishra
Gopal Mishra

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What must be the maximum dry density of Granular Sub Base & Wet Mix Macadam used in Road Construction?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on May 20, 2021 at 5:54 am

    The maximum dry density of  Granular Sub Base used in Road Construction must be  2100 Kg/Cum. The maximum dry density of Wet Mix Macadam used in Road Construction must be 2230 Kg/Cum.  

    The maximum dry density of  Granular Sub Base used in Road Construction must be  2100 Kg/Cum.
    The maximum dry density of Wet Mix Macadam used in Road Construction must be 2230 Kg/Cum.

     

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Asked: May 20, 2021In: Geotechnical Engineering

What is the Safe Bearing Capacity values for Different Soils?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

In the absence of test data for calculating SBC of soil. What are the assumed safe bearing capacity values for different soils?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on May 20, 2021 at 5:40 am

    The capacity of the soil to allow the loads coming from the foundation is called the bearing capacity of the soil. It is essential to know the bearing capacity of the soil before designing the foundation. Different field tests can determine it. However, standard safe bearing capacity values are avaiRead more

    The capacity of the soil to allow the loads coming from the foundation is called the bearing capacity of the soil.
    It is essential to know the bearing capacity of the soil before designing the foundation. Different field tests can determine it. However, standard safe bearing capacity values are available for different soil types, and these values can be assumed where test data is limited or speedy construction is required.

    S.No Type of Soil Safe Bearing Capacity ( kN/m2)
    Cohesive Soils
    1. Soft shale, hard or stiff clay in a deep bed, dry state 440
    2. Medium clay readily indented with a thumbnail 245
    3. Moist clay and Sand clay mixture, which can be indented by thumb pressure 150
    4. Black cotton soil/expansive clay ( 50% saturated) in the dry state 130 to 160
    5. Soft clay indented with moderate thumb pressure 100
    6. Very soft clay which can be penetrated with the thump up to few centimeters 50
    Cohesionless Soil
    7. Compact gravel/sand and gravel mixture with good resistance against penetration of tools 440
    8. Compact and dry coarse sand 440
    9. Compact and dry medium sand 245
    10. Loose gravel or sandy gravel mixture, dry state 245
    11. Fine sand and silt ( consists of dry lumps) 150
    12. Loose and dry fine sand 100
    Rocks
    13. Hard rocks such as granite trap, diorite, etc. 3240
    14. Laminated rocks such as sandstone, limestone, etc. 1620
    15. Residual deposits of shattered and broken bedrock and hard shale cemented material 880
    16. Soft rocks 440
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Asked: May 20, 2021In: Construction

What are the different types of handrails used in bridges?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

What are the different types of handrails used in bridges?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on May 20, 2021 at 5:36 am

    A bridge’s railing depends on various factors such as location, material, and purpose. The railing adds safety for pedestrians, aesthetics, and a custom touch to bridge construction. The different types of handrails used in bridges are: Steel Bridge Railing W-Beam Railing   Concrete Bridge RailRead more

    A bridge’s railing depends on various factors such as location, material, and purpose. The railing adds safety for pedestrians, aesthetics, and a custom touch to bridge construction.

    The different types of handrails used in bridges are:

    1. Steel Bridge Railing
    2. W-Beam Railing
    3.  

      Concrete Bridge Railing

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Asked: April 25, 2021In: Laboratory Tests

What is the Rockwell hardness of mild steel and aluminum?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

What is the Rockwell hardness of mild steel and aluminum?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on April 25, 2021 at 4:31 pm

    The Rockwell hardness of mild steel is 70 HRB.

    The Rockwell hardness of mild steel is 70 HRB.

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Asked: April 25, 2021In: Concrete

What is polymer concrete?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

What is polymer concrete?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on April 25, 2021 at 4:23 pm

    Polymer cement concrete is a composite concrete that consists of synthetic polymer within the binding material. Polymer concrete has advantages of higher properties, low energy requirements, and low labor costs. It is also called Polymer Portland cement concrete (PPCC) or latex-modified concrete (LMRead more

    Polymer cement concrete is a composite concrete that consists of synthetic polymer within the binding material. Polymer concrete has advantages of higher properties, low energy requirements, and low labor costs. It is also called Polymer Portland cement concrete (PPCC) or latex-modified concrete (LMC).

    Read more on polymer concrete-

    Polymer Cement Concrete: Properties and Uses

     

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Poll
Asked: September 21, 2020In: Career Guidance

What is your current work status?

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

What is your current work status?

  1. [Deleted User]
    Added an answer on November 28, 2020 at 7:08 pm

    Hi,sir. I am a civil engineering student from Maharashtra . I done many online course from iit through NPTEL . I also done AutoCAD ,staad.pro,blender. I got idea of this website from my IIT lecturer.

    Hi,sir.

    I am a civil engineering student from Maharashtra . I done many online course from iit through NPTEL .

    I also done AutoCAD ,staad.pro,blender.

    I got idea of this website from my IIT lecturer.

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Poll
Asked: September 21, 2020In: Career Guidance

What is your current profession? Describe in Answers

Gopal Mishra
Gopal Mishra

Gopal Mishra

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Gopal Mishra

What is your profession?

  1. [Deleted User]
    Added an answer on November 28, 2020 at 7:08 pm

    Hi sir, I am a intern student at AFCON. and also doing final year degree from Maharashtra.

    Hi sir,

    I am a intern student at AFCON. and also doing final year degree from Maharashtra.

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Asked: April 11, 2020In: Concrete

How to Repair Damaged Beams and Walls in Load Bearing Construction?

Gopal Mishra
Gopal Mishra

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How to repair the damaged beams and walls in load-bearing construction as shown in the images below. As seen in the picture, the structure has been broken to make way for drain pipes.

  1. poojan

    poojan

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    poojan Learner
    Added an answer on May 15, 2020 at 1:17 am

    There are certain methods to remove the delaminated concrete, and then formwork is to be fixe. After that, the application of repair material like a dry pack, and wet pack, shotcrete, is carried out if reinforcement is not removed while fixing the pipe. You can try one other method also, by fixing pRead more

    There are certain methods to remove the delaminated concrete, and then formwork is to be fixe. After that, the application of repair material like a dry pack, and wet pack, shotcrete, is carried out if reinforcement is not removed while fixing the pipe.

    You can try one other method also, by fixing plate bonding in the beam on the bottom to enhance the flexural strength, you will have to rest the plate on the bricks, and for that, you will have to remove the top layer of the brick. You also may need to provide scaffolding if you are altering the load-bearing wall. As it is a load-bearing structure, if any alteration is done in the load-bearing wall, it should be done with the consultation of a structural engineer.

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