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Asked: May 20, 2021In: Construction

What is the tolerance for compression test results of concrete, according to the standards?

AKM59
AKM59

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What is the tolerance for compression test results of concrete, according to the standards?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on May 20, 2021 at 6:07 am

    According to ACI 301-1.6.6 -“The strength of concrete is satisfactory provided that every average of three consecutive strength tests (sets) equals or exceeds the specified compressive strength and no strength test (set) falls below the design strength by more than 500 psi.

    According to ACI 301-1.6.6 -“The strength of concrete is satisfactory provided that every average of three consecutive strength tests (sets) equals or exceeds the specified compressive strength and no strength test (set) falls below the design strength by more than 500 psi.

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Asked: May 10, 2021In: Structural Engineering

Describe the design procedure of the industrial truss?

erashutoshjain
erashutoshjain

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Describe the design procedure of the industrial truss?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on May 10, 2021 at 10:36 pm

    The following steps should be considered when designing a truss: Selection of type and layout of the structure. Determination of loads on the structure. Evaluate internal forces and moments in the structural components. Selection of material and proportioning of members and connections for safety anRead more

    The following steps should be considered when designing a truss:

    1. Selection of type and layout of the structure.
    2. Determination of loads on the structure.
    3. Evaluate internal forces and moments in the structural components.
    4. Selection of material and proportioning of members and connections for safety and economy.
    5. Checking the performance of the structure under service conditions, and finally perform the final review.

    To know more about the design procedure of trusses, read the article given below-
    Trussed Beam- Design Principles and Erection Practices

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Asked: April 23, 2021In: Concrete

Explain the operating principle of the rebound hammer?

Komal Bhandakkar
Komal Bhandakkar

Komal Bhandakkar

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Explain the operating principle of the rebound hammer?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on April 23, 2021 at 2:23 pm

    The rebound hammer test method is based on the principle that the rebound of an elastic mass depends on the hardness of the concrete surface against which the mass strikes. The operation of the rebound hammer is shown in figure-1. When the plunger of the rebound hammer is pressed against the concretRead more

    The rebound hammer test method is based on the principle that the rebound of an elastic mass depends on the hardness of the concrete surface against which the mass strikes. The operation of the rebound hammer is shown in figure-1. When the plunger of the rebound hammer is pressed against the concrete surface, the spring-controlled mass in the hammer rebounds. The amount of rebound of the mass depends on the hardness of the concrete surface.

    Thus, the hardness of concrete and rebound hammer reading can be correlated with the compressive strength of concrete. The rebound value is read off along a  graduated scale and is designated as the rebound number or rebound index.  The compressive strength can be read directly from the graph provided on the hammer’s body.
    For more details on principle, procedure, advantages & disadvantages of rebound hammer test, kindly check the article below-

    Rebound Hammer Test on Concrete – Principle, Procedure, Advantages & Disadvantages

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Asked: April 8, 2021In: Structural Engineering

In what case is a Shear Key provided in Foundation?

Shailendra
Shailendra

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In what case is a Shear Key provided in Foundation?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman
    Added an answer on April 20, 2021 at 10:51 pm

    Shear keys are designed and provided in various structures to provide resistance against lateral loads like earthquake loads and sliding forces in various structures such as bridges, retaining walls, the basement of residential buildings, precast buildings and culverts, masonry walls in seismic regiRead more

    Shear keys are designed and provided in various structures to provide resistance against lateral loads like earthquake loads and sliding forces in various structures such as bridges, retaining walls, the basement of residential buildings, precast buildings and culverts, masonry walls in seismic regions, and steel columns.

    The shear key is provided in the following structural components-

    1. Bridge Structure
    2. Retaining Walls
    3. Footing-basement Wall
    4. Steel Column Base and Footing Joint
    5. Connections of Precast Concrete Elements
    6. Masonry Wall

    To know in detail about the shear key, please read the article-
    Shear Key in Construction: Purpose, Functions, and Uses

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Asked: February 2, 2021In: Construction

Which type of reinforcement are used in pre-stressing?

nikeetasharma
nikeetasharma

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Which type of reinforcement are used in pre-stressing?

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Asked: December 22, 2020In: Structural Engineering

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

Bhavani Pesaru
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
Sheraz Khan

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What is Labor and Equipment Productivity for detailed Estimates?

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Asked: November 28, 2020In: Civil Engineering Jobs

Which country provides highest salary to civil engineers?

Preet Chovatiya
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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