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Construction Site Related

Home/Construction Site Related/Page 10

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Asked: August 2, 2020In: Construction Site Related

What is surface excavation?

vivek gami
vivek gami

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What is surface excavation?

  1. nikeetasharma

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    Added an answer on November 24, 2020 at 7:29 pm

    Surface excavation involves the removal of the exposed layer of the earth surface, including any vegetation or decaying matter which could make the soil compressible and therefore unsuitable for bearing structural loads. Hence the depth will be vary from site to site, usually range of 150-300 mm.

    Surface excavation involves the removal of the exposed layer of the earth surface, including any vegetation or decaying matter which could make the soil compressible and therefore unsuitable for bearing structural loads. Hence the depth will be vary from site to site, usually range of 150-300 mm.

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Asked: July 22, 2020In: Construction Site Related

What are the responsibilities of a construction manager?

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What are the responsibilities of a construction manager?

  1. Preet Chovatiya

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    Preet Chovatiya Learner
    Added an answer on July 24, 2020 at 6:06 pm

    The following roles or responsibility should have in construction manager are:- Review work on daily basis Meet contractual condition of performance Review the project in depth Take out the estimate of whole project Schedule activity according to time limit of project Prepare internal and external rRead more

    The following roles or responsibility should have in construction manager are:-

    1. Review work on daily basis
    2. Meet contractual condition of performance
    3. Review the project in depth
    4. Take out the estimate of whole project
    5. Schedule activity according to time limit of project
    6. Prepare internal and external reports of a work.
    7. For preventing problems plan ahead always.
    8. Analyze, mitigate and manage task.
    9. Ensure the quality of construction during work in progress.
    10. Effective coordination between contractor and sub contractor as well.
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Asked: June 8, 2020In: Construction Site Related

What Type of Reinforcement is used in Prestressing Concrete?

Preet Chovatiya
Preet Chovatiya

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What type of reinforcement used in prestressing concrete? Is it either the standard reinforcement used in conventional RCC structure, or is there any particular type or category of reinforcement for prestressing?

  1. Neenu S K

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    Added an answer on June 9, 2020 at 8:02 am

    Hi, The prestressing steel used for prestressed concrete can take the form of Tendons Cables Wires – (Plain wire and Indented Wire) Strands –(Two-wire, three-wire and seven-wire strand) Bars The types of prestressing steel are: Cold Worked Prestressing steel Stress-relieving prestressing steel StraiRead more

    Hi,

    The prestressing steel used for prestressed concrete can take the form of

    1. Tendons
    2. Cables
    3. Wires – (Plain wire and Indented Wire)
    4. Strands –(Two-wire, three-wire and seven-wire strand)
    5. Bars

    The types of prestressing steel are:

    1. Cold Worked Prestressing steel
    2. Stress-relieving prestressing steel
    3. Strain tempered Prestressing steel

    Read More: Specifications of Prestressing Steel in Prestressed Concrete

    Difference between Reinforcing Steel and Prestressing Steel

    Both R.C.C and Prestressed Concrete employs steel bars or wires in order to sustain tension. But both the types of concrete make use of different steel.

    The steel used by R.C.C concrete can be:

    1. Solid Bars with Ribs
    2. Wires
    3. Metal Mesh

    The steel used in Prestressed Concrete are wires, strands, solid bars as mentioned above. Prestressed concrete uses high tensile strength steel that is manufactured by increasing the carbon content in steel compared to ordinary mild steel used in R.C.C.

    In prestressed concrete, the steel used is tensioned or prestressed. This results in loss of prestress in a range of about 20%. The use of mild steel bars or HYSD bars bring a greater loss than this value. Hence, it is necessary to have high strength tensile bars for prestressed concrete.

    Also Read: What is Steel Reinforcement? Types and Properties of Steel Reinforcement?

    Regards

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Asked: July 24, 2020In: Construction Site Related

What should be the standard Roof height?

Tips_and_tricks
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What should be the standard Roof height?

  1. CB Sowmya

    CB Sowmya

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    Added an answer on July 25, 2020 at 8:00 pm

    The ceiling height of residential buildings is generally 3 m. However, the minimum height requirements as per the National Building Code are as follows You can find more about it in this link below: https://test.theconstructor.org/building/rooms-minimum-height-size-standards/5116/   The ceilingRead more

    The ceiling height of residential buildings is generally 3 m. However, the minimum height requirements as per the National Building Code are as follows

    You can find more about it in this link below:

    https://test.theconstructor.org/building/rooms-minimum-height-size-standards/5116/

     

    The ceiling height of public and industrial buildings are larger than residential buildings, due to various reasons like the people traffic, ventilation purposes and for easy operation in case of industries.

    The minimum height of public buildings and industrial buildings is 3.6m.

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Asked: July 27, 2020In: Construction Site Related

What is Bursting Reinforcement?

DevilAVRT
DevilAVRT

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What is Bursting Reinforcement?

  1. nikeetasharma

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    Added an answer on December 17, 2020 at 3:50 pm

    There are three types of bursting reinforcement :- 1. Spalling reinforcement 2. Equilibrium reinforcement 3. Bursting reinforcement

    There are three types of bursting reinforcement :-
    1. Spalling reinforcement
    2. Equilibrium reinforcement
    3. Bursting reinforcement

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Asked: July 20, 2020In: Construction Site Related

What is the percentage of fineness content in OPC for construction works?

fathima
fathima

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What is the percentage of fineness content in OPC for construction works?

  1. nikeetasharma

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    Added an answer on December 21, 2020 at 5:34 pm

    The most active part of cement is the material finer than 10-15 nanometer. Furthermore, a fine grind of cement clinker is able to coat the surfaces of aggregates more completely than coarse material enabling intimate contact of the resultant paste or mortar.

    The most active part of cement is the material finer than 10-15 nanometer. Furthermore, a fine grind of cement clinker is able to coat the surfaces of aggregates more completely than coarse material enabling intimate contact of the resultant paste or mortar.

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Asked: July 15, 2020In: Construction Site Related

What is the difference between Lumpsum and Provisional Sum?

fathima
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What is the difference between Lumpsum and Provisional Sum?

  1. DevilAVRT

    DevilAVRT

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    DevilAVRT Beginner
    Added an answer on July 17, 2020 at 5:09 pm

    Lumpsum A lumpsum contract (or specified total agreement) is the customary method for acquiring development and still the most well-known type of development contract. Under a singular amount contract, a solitary 'single amount' cost for all the works has concurred before the works start. This is coRead more

    Lumpsum

    A lumpsum contract (or specified total agreement) is the customary method for acquiring development and still the most well-known type of development contract. Under a singular amount contract, a solitary ‘single amount’ cost for all the works has concurred before the works start. This is commonly fitting where the venture is very much characterized, when tenders are looked for, and noteworthy changes to necessities are impossible. This implies the temporary worker can precisely value the works they are being approached to complete. Lumpsum contracts may be less suitable where speed is significant, or where the idea of the works isn’t very much characterized. Different types of agreement that may be increasingly suitable in such conditions incorporate estimation contracts (utilized where the works can be depicted in sensible detail, yet the sum can’t), cost repayment contracts (utilized where the idea of the works can’t be appropriately characterized at the beginning, frequently utilized where a prompt beginning nearby is required), target cost contracts, etc.

    Focal points of lumpsum contracts:

    • Customer’s hazard is insignificant.
    • Less varieties.
    • The customer can orchestrate capital as indicated by the installment plan.
    • Temporary worker’s income is unsurprising.
    • The offering procedure is increasingly straightforward and unprejudiced.

    Impediments of lumpsum contracts:

    • Contractual workers chance is high (helpless profitability and bungle can lead the undertaking into a misfortune).
    • Helpless subtleties and specs in the structure can prompt venture debates.
    • Deferrals in the customer’s financing can postpone the undertaking.
    • The structure ought to be finished and accessible before the pre-contract process.
    • Obtainment times can be long.

    Provisional Sum

    The term ‘provisional sum’ is commonly surely known in the development business. It is utilized in valuing development agreements to allude either to work which is really temporary, as in it could conceivably be done by any means, or to work whose substance is unclear, with the goal that the gatherings choose not to attempt to value it precisely when they go into their agreement. A provisional sum is typically included as a round figure surmise. It is incorporated scientifically in the first agreement cost; however, the gatherings don’t anticipate that the underlying round figure should be paid without modification. The agreement normally gives explicitly how it is to be managed. A typical statement in substance accommodates the temporary whole to be discarded, and a fitting valuation of the work really did to be fill in for it. In this general sense, the term ‘temporary aggregate’ is near a term of workmanship, yet its exact significance and impact rely upon the conditions of the individual agreement.

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Asked: May 16, 2020In: Construction Site Related

Admixtures in concrete for to Delay Setting Times

Ramesh Kumar
Ramesh Kumar

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How to calculate admixture for transporting concrete for long distances to delay setting time in case of long-distance transportation in transit mixers?

  1. Komal Bhandakkar

    Komal Bhandakkar

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    Added an answer on October 5, 2020 at 10:21 pm

    The admixture which we use in the concrete for delaying its setting time then such type of admixtures are called as retarders. Gypsum is a retarding agent which we add in the cement during its manufacturing process. Gypsum is work as a starting agent as well as it restricts soundness in the cement.Read more

    The admixture which we use in the concrete for delaying its setting time then such type of admixtures are called as retarders.

    Gypsum is a retarding agent which we add in the cement during its manufacturing process.

    Gypsum is work as a starting agent as well as it restricts soundness in the cement.

    Apart from gypsum of various admixtures already listed in some previous post.

    The chemical name of gypsum is calcium sulphate.


    Thank you.

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