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DevilAVRT
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What is Bursting Reinforcement?

  1. nikeetasharma

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    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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vivek gami
vivek gami

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How to do estimation fo steel gate?

  1. nikeetasharma

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    Some of the below mentioned elements can help you to get an idea to estimate the cost :- 1. Gates square meters have a great impact on the final price. 2. The model of the gate can vary the price. 3. Treatments done to wrought steel pieces lower future maintenance cost. 4. Quality of the steel alsoRead more

    Some of the below mentioned elements can help you to get an idea to estimate the cost :-

    1. Gates square meters have a great impact on the final price.

    2. The model of the gate can vary the price.

    3. Treatments done to wrought steel pieces lower future maintenance cost.

    4. Quality of the steel also vary the price.

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Gopal Mishra
Gopal Mishra

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What is the difference between Ordinary Portland cement and Pozzolana Portland Cement?  Which one is best for concrete works?

  1. aviratdhodare

    aviratdhodare

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    aviratdhodare

    Particulars OPC PPC Name Ordinary Portland Cement Portland Pozzolana Cement IS Codes OPC 33 Grade Cement is IS: 269, for 43 Grade Cement IS: 8112 is used and for 53 Grade Cement IS: 12269 PPC IS 1489 (part 1 & 2) 1991 Ingredients & Manufacturing process Cement is made by heating limestone (CRead more

    Particulars OPC PPC
    Name Ordinary Portland Cement Portland Pozzolana Cement
    IS Codes OPC 33 Grade Cement is IS: 269, for 43 Grade Cement IS: 8112 is used and for 53 Grade Cement IS: 12269 PPC IS 1489 (part 1 & 2) 1991
    Ingredients & Manufacturing process Cement is made by heating limestone (CaCO3 & clay) to 1450oC in a kiln & grounded with gypsum. Pozzolana materials like fly ash, volcanic ash are blended to OPC @ 15%-35% by wt.
    Environmental impact Uses limestone clay & gypsum which are natural stones & emits CO2 during making. Consumes industrial wastes such as fly ash, bf slag, etc. & is environment friendly.
    Grades available 33, 43, 53 Grades Don’t have any grade but attains strength of 33 grade cement on 228 days curing. After that its strength gain slows down.
    Cost per unit Costly compared to PPC due to limestone Cheaper bcoz limestone replaced by pozzolana
    Sulphate resistance Less durable in aggressive weather & sulphate attack & hence not preferred for marine structures, hydraulic structures, sewages pipes, etc. Highly resistant to sulphate & used & preferred for marine structures, hydraulic structures, sewages pipes, etc.
    Permeability & Durability Low fineness, permeability is less Higher fineness, higher permeability, result high durability.
    Setting time Initial setting time: 30mins

    Final setting time: 280mins

    		 Initial setting time: 30mins

    Final setting time: 600mins
    Construction speed Faster construction speed as it gains strength early. Gains strength with time.
    Fineness OPC has finiteness of 225 sq.m/kg. It has lower fineness than PPC. So, it has higher permeability resulting lower durability. PPC has finiteness of 300 sq.m/kg. It has higher fineness than OPC. So, it has lower permeability resulting in higher durability.
    Heat of Hydration It contains active salt hence more Heat of Hydration. Don’t have blended material & it gains 95% early strength in 7 days. Blended cement with flyash or slag, etc. Low heat of hydration. Gains 75% strength in 7 days & 90% strength in 14 days.
    Shrinkage cracks Will be more due to high heat of hyudration Less shrinkage cracks
    Workability Lower Lower
    Mass concrete Not preferred Preferred for mass concreting

     

     

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Anil Kumar
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What is the Beam and Column Junction reinforcement details?

  1. AdityaBhandakkar

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    This answer was edited.
    What is the Beam and Column Junction reinforcement details?

    Hi, In simple words, detailing of composed mint is necessary for the structural steel and also for 10 force concrete structures to attend strength and durability. The figure is attached with shows the joining details of beams and columns. The main parts of them should be cracked near the columns andRead more

    Hi,

    In simple words, detailing of composed mint is necessary for the structural steel and also for 10 force concrete structures to attend strength and durability. The figure is attached with shows the joining details of beams and columns.

    The main parts of them should be cracked near the columns and the length. It is in the ratio of 1:4. Any other cases the beam re pass must not pass from the column rebars outer surface which comprises the concrete cover.

    Instead of detailing the above different detailings are the wind for rehabilitation and strengthening the damaged elements.

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sanjaylimbasia
sanjaylimbasia

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What is method or procedure for making 1 hour and 2 hour fire rating walls?

  1. Komal Bhandakkar

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    This answer was edited.

    Making of 1hr and 2hr firing wall: This is one of the most popular questions. Basically, building codes typically require that the structure is wall roof floor, the roof is fire-resistant. The standards set forth by the International Building Code (IBC). fire resistant Wallis designed for a definiteRead more

    Making of 1hr and 2hr firing wall:

    This is one of the most popular questions.

    Basically, building codes typically require that the structure is wall roof floor, the roof is fire-resistant.

    The standards set forth by the International Building Code (IBC). fire resistant Wallis designed for a definite time period.

    According to ‘Commercial drafting and detailing book’, a one of our fire rated wall consists  2 x 4 studs spaced 16 inches from the centre of one stud to the centre of the next.

     

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    • 30
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civl engineer
civl engineer

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What is Stucco Plaster?

  1. nikeetasharma

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    Stucco is applied by an industry specialist to the interior and exterior walls. An expert can apply the plaster manually or by using a machine. This portland cement plaster can be used on concrete wall systems, or on a frame structure. It is used for siding, or to cover concrete, cinder block, clayRead more

    Stucco is applied by an industry specialist to the interior and exterior walls. An expert can apply the plaster manually or by using a machine. This portland cement plaster can be used on concrete wall systems, or on a frame structure. It is used for siding, or to cover concrete, cinder block, clay brick or adobe.

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talha
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Top and Bottom both faces have all sides are different lengths and height is constant.  

  1. Komal Bhandakkar

    Komal Bhandakkar

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    This answer was edited.

    Place bricks on one top of the other around the concrete shape you want to find its volume. First, choose a rectangular shape around the object and then going to the object. Then place a sufficiently large sheet of polythene in the space around the concrete object for covering the mold. Then take aRead more

    Place bricks on one top of the other around the concrete shape you want to find its volume.

    First, choose a rectangular shape around the object and then going to the object.

    Then place a sufficiently large sheet of polythene in the space around the concrete object for covering the mold.

    Then take a standard bucket of 25-liter capacity and then slightly pour water within the polythene most do formed. Keep a count of the buckets of water poured till it overflows at the top of the brick wall.

    Measure the inside dimension and depth of the rectangular moat.

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Vivek Patel
Vivek Patel

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What is deadmen or tell-tales in excavation?

  1. nikeetasharma

    nikeetasharma

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    Basically in construction, deadmen refers to a heavy weight, typically a mass concrete block used to provide support or resistance to a load. These blocks are usually embedded firmly in soil, however some blocks may simply rest on the ground surface. A deadmen also referred to as a jacking lug.

    Basically in construction, deadmen refers to a heavy weight, typically a mass concrete block used to provide support or resistance to a load. These blocks are usually embedded firmly in soil, however some blocks may simply rest on the ground surface.

    A deadmen also referred to as a jacking lug.

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