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Discy Latest Questions

Asked: December 22, 2020In: Structural Engineering

Why are the shorter spans of a slab prone to bending?

Bhavani Pesaru
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Why are the shorter spans of a slab prone to bending? Why there was no bending in a longer direction?

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Asked: December 21, 2020In: Construction

What is Labor and Equipment Productivity for detailed Estimates?

Sheraz Khan
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What is Labor and Equipment Productivity for detailed Estimates?

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Asked: November 28, 2020In: Concrete

Why is the risk of efflorescence formation in cement-based materials high in coastal areas?

Dilan Kasun
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it is observed that formation of efflorescence is high in coastal areas. process of efflorescence formation in cementitious materials is understood. only reasons to having high risk of efflorescence formation are needed to be cleared. please advice

  1. aviratdhodare

    aviratdhodare

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    Added an answer on January 9, 2021 at 5:56 pm

    Efflorescence is layer of salts left behind by an evaporating sol'n of salts on masonry surfaces. It is quite usual on plastered walls, ceilings, concrete, cement plastering, and painted walls. Why and how does it occur? It occurs when the dissolved salts in cement, sand, and water in constructionsRead more

    Efflorescence is layer of salts left behind by an evaporating sol’n of salts on masonry surfaces. It is quite usual on plastered walls, ceilings, concrete, cement plastering, and painted walls.

    Why and how does it occur? It occurs when the dissolved salts in cement, sand, and water in constructions are brought to the surface through leaching. In the second stage, the water evaporates to the atmosphere leaving powdery crystalline salts on the surface.

    These salts could be present in cement due to breakdown and aging.
    The sand used is of inferior quality containing salts. Though river sands are used in construction, excessive quarrying could lead to poorer quality. Instead of using sand from river or lake beds, adulteration with seashore sand could be the cause.
    Water used for curing is impure with dissolved salts in it. Saline water with dissolved salts could turn out to be the culprit.

    At the initial stages, the formation of a salt layer on the surface could go unnoticed. However repetitive cycles of evaporation and leaching steadily build-up the salt and the seriousness of the problem is visual. In some cases, growth in fungi could be noticed accompanied by efflorescence leading to unhygienic spaces.

    Let us turn our attention to the question of the acceleration of corrosion near the seashores. Galvanic corrosion is the type of corrosion noticed near seashores. Salt in the form of aerosols reaches places located 30 KM inshore.

    Salt, water, and the wind are the players that accelerate the corrosion process. Near the seashores, all these prime ingredients are readily available.

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Asked: November 28, 2020In: Miscellaneous

What is the percentage of carbon in wrought iron?

Komal Bhandakkar
Komal Bhandakkar

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What is the percentage of carbon in wrought Iron?

  1. aviratdhodare

    aviratdhodare

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    Added an answer on January 5, 2021 at 1:53 pm

    Wrought iron is a form of commercial iron containing less than 0.10% of carbon, less than 0.25% of impurities total of sulfur, phosphorus, silicon and manganese, and less than 2% slag by weight. Wrought iron is redshort or hot short if it contains sulfur in excess quantity.

    Wrought iron is a form of commercial iron containing less than 0.10% of carbon, less than 0.25% of impurities total of sulfur, phosphorus, silicon and manganese, and less than 2% slag by weight. Wrought iron is redshort or hot short if it contains sulfur in excess quantity.

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Asked: November 28, 2020In: Civil Engineering Jobs

Which country provides highest salary to civil engineers?

Preet Chovatiya
Preet Chovatiya

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Which country provides highest salary to the civil engineer?

  1. aviratdhodare

    aviratdhodare

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    Added an answer on January 5, 2021 at 3:01 pm

    Highest Paying Countries for Civil Engineer Switzerland: Average annual salary: $ 77, 438 (Approx. Rs. 50,33470) Denmark: The average annual salary happens to be: $ 71,565 (Approx. Rs 46,51725) Norway: Average annual salary: $ 67,154 (Approx. Rs 43,65010) U.S.: Average annual salary: $ 62, 019 (ApprRead more

    Highest Paying Countries for Civil Engineer

    • Switzerland: Average annual salary: $ 77, 438 (Approx. Rs. 50,33470)
    • Denmark: The average annual salary happens to be: $ 71,565 (Approx. Rs 46,51725)
    • Norway: Average annual salary: $ 67,154 (Approx. Rs 43,65010)
    • U.S.: Average annual salary: $ 62, 019 (Approx. Rs 40,31235)
    • Australia: Average annual salary: $ 54,155 (Approx. Rs 35,20075)
    • Canada Average annual salary in US dollars:  $47,262
    • Germany Average annual salary in US dollars:  $44,803
    • France Average annual salary in US dollars:  $42,2117
    • United Kingdom Average annual salary in US dollars:  $40,692
    • Netherlands Average annual salary in US dollars:  $40,612
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Asked: November 28, 2020In: Miscellaneous

What are the important points of FIDIC Contract we should keep in mind during tendering?

RiyaJames
RiyaJames

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What are the important points of FIDIC Contract we should keep in mind during tendering?

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Asked: November 28, 2020In: Transportation

What is the difference between Airport, Aerodrome and Airfield?

Naif Alwadai
Naif Alwadai

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What is the difference between Airport, Aerodrome and Airfield?

  1. desvl

    desvl

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    Added an answer on April 8, 2021 at 9:23 pm

    Airport: A place often with multiple runways where commercial aircraft regularly take off and land usually based on a schedule, it has buildings for passengers flight management (Control tower) and services such as refueling, maintenance etc. An airport is normally a commercial enterprise. An AirfieRead more

    Airport: A place often with multiple runways where commercial aircraft regularly take off and land usually based on a schedule, it has buildings for passengers flight management (Control tower) and services such as refueling, maintenance etc. An airport is normally a commercial enterprise.

    An Airfield is on a much smaller scale usually non commercial and used for private or irregular charter flights minimal runways and limited services can also be military. minimal if any control.

    An Aerodrome is an old English word that has been replace with the word airfield so aerodrome and airfield are the same.

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Asked: November 28, 2020In: Construction

How to select the type of lintel to be used?

Parth Birajdar
Parth Birajdar

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There are many types of lintels..So which lintels should be used in different situations..Which factors to consider while designing a lintel for particular type of construction?

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