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Discy Latest Questions

Asked: December 18, 2018In: Construction

Which cement is best for concrete slab construction? OPC or PPC?

Gangadhar
Gangadhar

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Which cement is best for concrete slab construction? OPC or PPC? What is the difference and advantages of these cements for slab?

  1. AdityaBhandakkar

    AdityaBhandakkar

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    AdityaBhandakkar User
    Added an answer on August 10, 2020 at 8:45 pm

    Generally, Ordinary Portland cement (OPC) is used in the factories, power plants and in large construction slabs. Portland pozzolana cement (PPC) is used for the construction of houses, schools, and residential building slabs. PPC is cheaper than ordinary Portland cement. Thus to reduce the buildingRead more

    Generally, Ordinary Portland cement (OPC) is used in the factories, power plants and in large construction slabs.

    Portland pozzolana cement (PPC) is used for the construction of houses, schools, and residential building slabs. PPC is cheaper than ordinary Portland cement. Thus to reduce the building making cost, PPC should be adopted.

    Both the PPC and OPC cement is used in the construction of slabs.

    Portland pozzolana cement is Better resistant to sulfate attacks. Thus PPC is used in underwater construction where water has some amount of sulfur quantity. Its setting time is higher than OPC.

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Asked: May 15, 2020In: Concrete

What is CC concrete or Concrete Cloth?

amr soliman
amr soliman

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What is CC or Concrete Cloth?

  1. nikeetasharma

    nikeetasharma

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    nikeetasharma Guru
    Added an answer on November 24, 2020 at 5:47 pm

    Concrete cloth is a unique proprietary material. It has a very wide range of applications throughout the building and civil engineering industry. CC is a flexible; cement impregnated fabric that hardens when hydrated to form a thin, durable, water and fire proof concrete layer. CC allows concrete coRead more

    Concrete cloth is a unique proprietary material. It has a very wide range of applications throughout the building and civil engineering industry. CC is a flexible; cement impregnated fabric that hardens when hydrated to form a thin, durable, water and fire proof concrete layer. CC allows concrete construction without the need for plant or mixing equipment. It has a designed life of 10 years. It is significantly quicker and less expensive to install.

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Asked: July 15, 2020In: Geotechnical Engineering

What is Creep in Soil Mechanics?

vivek gami
vivek gami

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What is Creep in Soil Mechanics? Why it is important?

  1. Kuldeep Singh

    Kuldeep Singh

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    Kuldeep Singh Learner
    Added an answer on July 15, 2020 at 11:35 pm

    Creep in soil is pretty much similar in concept to creep in general. Only the manifestation and consequences are different in different materials and can be very peculiar in soil. Creep in soil is the time dependant development of shear strains and/or volumetric strains in a soil mass in the  stateRead more

    Creep in soil is pretty much similar in concept to creep in general. Only the manifestation and consequences are different in different materials and can be very peculiar in soil.

    Creep in soil is the time dependant development of shear strains and/or volumetric strains in a soil mass in the  state of a constant effective stress for a prolonged period of time.

    It is also sometimes referred to as the gradual loss of cohesion over a prolonged period of time in soil.

    Unlike concrete, where creep results in deflection and cracking, creep in soil  to may lead to long term settlement, movements of slopes, gradual loss of soil from slopes or shear failure.

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Asked: February 12, 2020In: Construction

Sketches of types of scaffolding used in building construction

jeremih
jeremih

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Can i get sketches of types of scaffolding?

  1. nikeetasharma

    nikeetasharma

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    Added an answer on November 26, 2020 at 1:59 pm
    This answer was edited.

    The sketches of scaffoldings are : Trestle scaffolding   2.Steel scaffolding 3.Patented scaffolding 4. Suspended scaffolding 5. Cantilever scaffolding 6. Single scaffolding 7. Double scaffolding 8. Kwikstage scaffolding  

    The sketches of scaffoldings are :

    1. Trestle scaffolding

     

    2.Steel scaffolding

    3.Patented scaffolding

    4. Suspended scaffolding

    5. Cantilever scaffolding

    6. Single scaffolding

    7. Double scaffolding

    8. Kwikstage scaffolding

     

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Asked: July 10, 2020In: Concrete

What is bacterial concrete?

vivek gami
vivek gami

vivek gami

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What is bacterial concrete? Which are the area of application of bacterial concrete?  

  1. nikeetasharma

    nikeetasharma

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    Added an answer on December 21, 2020 at 12:08 pm

    The principle of bacteria based self healing concrete is that carbonate precipitating bacteria are added into the concrete during the mixing process. When cracking occurs, the bacteria will be activated to precipitate CaCO3 to in-situ heal concrete cracks. Bacillus Megaterium bacteria were used in cRead more

    The principle of bacteria based self healing concrete is that carbonate precipitating bacteria are added into the concrete during the mixing process. When cracking occurs, the bacteria will be activated to precipitate CaCO3 to in-situ heal concrete cracks.

    Bacillus Megaterium bacteria were used in concrete and results shows 24% increase in compressive strength. The deposition of calcium carbonate in concrete by Bacillus Sphaericus improves the durability of concrete.

    Therefore, bacterial concrete is a product that will biologically produce limestone to heal cracks that appear on the surface of concrete structures.

    These self healing agents can lie dormant with in the concrete for up to 200 years.

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Asked: July 20, 2020In: Structural Engineering

What is fatigue in any structural member?

vivek gami
vivek gami

vivek gami

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What is fatigue in any structural member?

  1. nikeetasharma

    nikeetasharma

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    nikeetasharma Guru
    Added an answer on December 17, 2020 at 3:08 pm

    Concrete fatigue refers to the phenomenon of rupture under repeated loadings, each of which is smaller than a single static load that exceeds the strength of material.

    Concrete fatigue refers to the phenomenon of rupture under repeated loadings, each of which is smaller than a single static load that exceeds the strength of material.

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Asked: July 31, 2020In: Miscellaneous

What are the best steps for bituminous patch repair work?

vivek gami
vivek gami

vivek gami

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What are the best steps for bituminous patch repair work?

  1. nikeetasharma

    nikeetasharma

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    Added an answer on December 18, 2020 at 3:38 pm

    The best steps for bituminous patch repair work are as follows :- - Clean the patches and debris. - Make the affected surrounding clean. - Spray the binder coat at the bottom of patches. - Fill the patch with asphalt and aggregate. - Then cover with asphalt binding material. - Edge seal to repair woRead more

    The best steps for bituminous patch repair work are as follows :-

    – Clean the patches and debris.
    – Make the affected surrounding clean.
    – Spray the binder coat at the bottom of patches.
    – Fill the patch with asphalt and aggregate.
    – Then cover with asphalt binding material.
    – Edge seal to repair work.

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Asked: September 19, 2020In: Geotechnical Engineering

What is the equation of A-line in the plasticity chart?

aviratdhodare
aviratdhodare

aviratdhodare

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aviratdhodare

What is the equation of A-line in the plasticity chart?

  1. nikeetasharma

    nikeetasharma

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    Added an answer on November 26, 2020 at 12:09 pm

    Fine grained soils are classified based on the plasticity chart. The equation of A line is ; Ip=0.73(liquid limit -20) Ip=plasticity index

    Fine grained soils are classified based on the plasticity chart. The equation of A line is ;

    Ip=0.73(liquid limit -20)

    Ip=plasticity index

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