Popular Questions

Home/Popular Questions/Page 29

Do you need to remove the ads? Get the paid membership

Discy Latest Questions

Asked: In:
Komal Bhandakkar
Komal Bhandakkar

Komal Bhandakkar

View Profile
AUTHOR

 what is the need to design a mix concrete ?

  1. nikeetasharma

    nikeetasharma

    View Profile
    nikeetasharma Guru

    Good concrete mix design creates the foundation of a sound infrastructure. Concrete mix design involves a process of preparation in which a mix of ingredients creates the required strength and durability for the concrete structure.

    Good concrete mix design creates the foundation of a sound infrastructure. Concrete mix design involves a process of preparation in which a mix of ingredients creates the required strength and durability for the concrete structure.

    See less
    • 0
Asked: In:
nikeetasharma
nikeetasharma

nikeetasharma

View Profile
Guru

Differentiate between plain and reinforced concrete. Among these to which one gives more strength?

  1. aviratdhodare

    aviratdhodare

    View Profile
    aviratdhodare

    Basic differences PCC RCC Plain Cement Concrete R/f Cement Concrete It doesn’t carry ‘Steel’. It carries Steel. PCC is weak in tension loading while strong in compression loading. RCC is strong in both. PCC blasts on excessive loading & in an instant w/t giving any warning. RCC gives you enoughRead more

    Basic differences

    PCC RCC
    Plain Cement Concrete R/f Cement Concrete
    It doesn’t carry ‘Steel’. It carries Steel.
    PCC is weak in tension loading while strong in compression loading. RCC is strong in both.
    PCC blasts on excessive loading & in an instant w/t giving any warning. RCC gives you enough time to vacate the structure before collapse.

    What is PCC DPC and RCC in civil engineering | RCC and PCC

      Plain Cement Concrete R/f Cement Concrete
    Tension Steel tendons

    High tensile steel bars

    Included with tension

    		 Ordinary Mild Steel Deformed Bars

    No tension included
    Basic materials used Min grade of concrete

    Post-Tensioning → M30

    Pre-Tensioning  → M40

    to resist high stresses

     

    High strength steel to transfer large prestressing force

    		 Min grade of concrete → M20

    Steel                           → MS
    Effectiveness of member Entire section carries load Does not carries load
    Crack resistance High

    Cracks don’t occur under working loads

    		 Less
    Wt & suitability Light

    Heavy loads & longer spans

    		 Heavy

    Wt is more desired than steel
    Equiments Requires many specialized equiments

    Pulling jack, Post-tensioning pump, Master wedges, Anchhor head & bearing

    		 Doesn’t involve specialized equiments.
    Quality of steel reqd 1/3rd of RCC

    More strength & less c/s area

    		 More
    Deflection Very less More
    Load carrying capacity & Durability More Less
    Shock resistance More Less
    Yield As high as 2100 N/mm2 200 – 300 N/mm2
    Testing Testing of steel & concrete can be done while prestressing. No way of testing the steel & concrete.
    Cost Economical for span of 10m – 18m.

    As length of span gets ↑

    Cost % ↑

    C/s area of beam ↓

    		 Economical for span < 9m.
    See less
    • 12
Asked: In:
Tengo Alaverdashvili
Tengo Alaverdashvili

Tengo Alaverdashvili

View Profile
User

Hi. I am an architect and I’d like to hear your advise. Can this type of brick bond be used for a load bearing wall? I think that this zigzag form makes the wall stronger, but will it be enough? I ...

  1. Komal Bhandakkar

    Komal Bhandakkar

    View Profile
    Komal Bhandakkar AUTHOR
    This answer was edited.

    In masonary work, we used usually 1:4 cement-sand mortar of compressive strength 3.8N/mm2. The compressive strength of one brick of standard size is 11.12N/mm2. The compressive strength of brick masonry is 2.5 N/mm2.  Thanks.  

    In masonary work, we used usually 1:4 cement-sand mortar of compressive strength 3.8N/mm2.

    The compressive strength of one brick of standard size is 11.12N/mm2.

    The compressive strength of brick masonry is 2.5 N/mm2.

     Thanks.  

    See less
    • 0
Asked: In:
Abhishek Kirave
Abhishek Kirave

Abhishek Kirave

View Profile
User

What are the Advantages AAC Masonry over the Conventional Brick Masonry Work? Which type of wall shall have more strength?

  1. nikeetasharma

    nikeetasharma

    View Profile
    nikeetasharma Guru

    AAC is also known as Autoclaved aerated concrete which is a lightweight, precast, foam concrete building material which is suitable for producing concrete masonry unit like blocks. The advantages of AAC masonry over the conventional brick masonry are as follows :- - AAC bricks are eco-friendly whereRead more

    AAC is also known as Autoclaved aerated concrete which is a lightweight, precast, foam concrete building material which is suitable for producing concrete masonry unit like blocks.

    The advantages of AAC masonry over the conventional brick masonry are as follows :-
    – AAC bricks are eco-friendly whereas conventional bricks are not.
    – On AAC block dead load on the structure is low which reduces the consumption of cement, steel and water whereas using red clay brick there’s a heavy dead load on the structure.
    – AAC blocks emits less heat in the atmosphere due to less use of cement, steel and concrete whereas on the other hand red clay bricks emits high heat to the atmosphere.
    – AAC blocks have less material wastage whereas conventional red clay bricks have high material wastage.
    – Thus, AAC have high sound insulation properties and red bricks have low insulation property.

    See less
    • 0
Asked: In:
DevilAVRT
DevilAVRT

DevilAVRT

View Profile
Beginner

Explain in detail about closer bricks?

  1. AdityaBhandakkar

    AdityaBhandakkar

    View Profile
    AdityaBhandakkar User
    Explain in detail about closer bricks?

    Closer bricks: the brick is cut in such a way that one portion is kept remains with the break and used another part for closing the gap. Queen closer: the brakes are cut along the length for making two equal parts longitudinally called as Queen closer width of Queen closer brick is half of the origiRead more

    1. Closer bricks: the brick is cut in such a way that one portion is kept remains with the break and used another part for closing the gap.
    2. Queen closer: the brakes are cut along the length for making two equal parts longitudinally called as Queen closer width of Queen closer brick is half of the original brick called as half Queen closer.
    3. King closer: the brick is cut in such a technique that one end of brick width is half of the width of the original brick.
    4. Bevelled closer: in this break, the stretcher face is bevelled in such a way that at one end half-width and on another end, full width is maintained.
    5. Mitred closer: in this break, the one and it is cut in a mitred manner. That is a 45 to 60-degree angle with length. It is shown in the above diagram.
    6. BAT: if along the length, the brick is cut called as a bat.
    7. Half Bat: along the length, bricks are cut into two equal part.
    8. Three-quarter bat: length equal to 3 quarter of the full-length brick.
    9. Bevelled Bat: width is bevelled. As shown in fig.
    See less
    • 50
Asked: In:
Himanshu joshi
Himanshu joshi

Himanshu joshi

View Profile
Learner

What is the difference between ductile and malleable property of material?

  1. nikeetasharma

    nikeetasharma

    View Profile
    nikeetasharma Guru

    If we talk about malleability and ductility both are connected or related. A malleable material is one in which a thin sheet can be easily formed by hammering or rolling. In other words, the material has the ability to deform under compressive stress. And here ductility is the ability of the solid mRead more

    If we talk about malleability and ductility both are connected or related. A malleable material is one in which a thin sheet can be easily formed by hammering or rolling. In other words, the material has the ability to deform under compressive stress. And here ductility is the ability of the solid material to deform under tensile stress. Practically, a ductile material is a material that can easily be stretched into a wire when pulled.

    See less
    • 0
Asked: In:
Tips_and_tricks
Tips_and_tricks

Tips_and_tricks

View Profile
Learner

What is meant by Theoretical Thickness in Concrete?

  1. nikeetasharma

    nikeetasharma

    View Profile
    nikeetasharma Guru

    The thickness of the concrete cover measure is usually part of the concrete quality control in modern construction so as to ensure that the thickness of the concrete cover in conformity with the specifications. The process of measuring the thickness of the concrete cover in structures was noted by tRead more

    The thickness of the concrete cover measure is usually part of the concrete quality control in modern construction so as to ensure that the thickness of the concrete cover in conformity with the specifications. The process of measuring the thickness of the concrete cover in structures was noted by the beginning of the corrosion, as the lack of concrete cover thickness increased the corrosion rate for corrosion as a result of chlorides or carbonation, where it expedited the propagation inside the concrete, causing the speed of steel corrosion as well as the lack of cover helps the propagation of moisture and oxygen, which are form the main basis for the corrosion process.

    See less
    • 0
Asked: In:
AdityaBhandakkar
AdityaBhandakkar

AdityaBhandakkar

View Profile
User

What is the ruling radius of a horizontal curve?

  1. aviratdhodare

    aviratdhodare

    View Profile
    aviratdhodare

    The maximum degree of curve or smallest radius for a railroad is 3 degrees on a new main line track with a maximum grade of 1% compensated at 0.04% per degree of curve; therefore a grade in a 3 degree curve would actually be 0.88%. For a highway it depends on what kind, where, typical traffic, speedRead more

    The maximum degree of curve or smallest radius for a railroad is 3 degrees on a new main line track with a maximum grade of 1% compensated at 0.04% per degree of curve; therefore a grade in a 3 degree curve would actually be 0.88%. For a highway it depends on what kind, where, typical traffic, speed limits, etc.  Degree of curve is the angle between the radii of a curve of a 100 foot chord which is chord definition. Highway departments usually use Degree of Curve as the angle between the radii of a curve of an arc of 100 feet. For curves 3 degrees or under, the difference between the definitions staked on the ground is inconsequential.

    See less
    • 32
Load More Questions