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What are the advantages of running electrical cables through PVC conduits in the walls over running in the slab? Are there any problems which may come up in the future if we run electrical cables conduits in the slab?    

  1. Rohan Chaugule

    Rohan Chaugule

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    The main advantage, from my point of view, is that it may so happen that we may want to demolish a wall in the house for what so ever reason, but we can't dismantle or harm the slab since its a structural member. The second reason is that a slab may run continuously throughout the structure; hence wRead more

    The main advantage, from my point of view, is that it may so happen that we may want to demolish a wall in the house for what so ever reason, but we can’t dismantle or harm the slab since its a structural member.

    The second reason is that a slab may run continuously throughout the structure; hence we can lay straight cables throughout the structure and provide connection where ever required, but in case of walls, we may not find this convenient.

    Also, if the walls are periphery or exterior walls, which may be directly exposed to rains, then it may cause Earthing issues.

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I would like to know which grade cement  (43 or 53) is most suitable for Concrete works, Columns, and slabs with M-sand, and what is the curing period?    

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman EDITOR

    Dear VSR, The best suitable grade of cement for structural members such as columns and pillar depends upon the design. Which type of cement is considered at the time of the design of these structural members? For general construction, it is recommended to use 43-grade cement as the 53-grade cement iRead more

    Dear VSR,

    The best suitable grade of cement for structural members such as columns and pillar depends upon the design. Which type of cement is considered at the time of the design of these structural members?
    For general construction, it is recommended to use 43-grade cement as the 53-grade cement is used for fast-paced construction, rapid setting and it requires proper care while curing.
    Grades of Ordinary Portland Cement-Based on IS Codes

    Either you use natural sand or M-sand, there is no such difference in the strength of the concrete.

    Lastly regarding the curing time, the curing period for any concrete member shall be 28days.

    Curing of Cement Concrete – Time and Duration

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What are the advantages and disadvantages of using Robo sand or M-sand instead of natural sand in concrete of footings, columns, and slab? What are the steps needed to be taken to mitigate disadvantages if one uses Robo Sand/ M ...

  1. AdityaBhandakkar

    AdityaBhandakkar

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    This answer was edited.

    Hi, I thought you get your answer from the above comments. But as you mentioned in the question about his safety, yes the M sand safe for construction purposes up to some extent and after using some admixtures. Basically, rivers and is very costly. And the sands of the river selling on the base of wRead more

    Hi, I thought you get your answer from the above comments. But as you mentioned in the question about his safety, yes the M sand safe for construction purposes up to some extent and after using some admixtures. Basically, rivers and is very costly. And the sands of the river selling on the base of weight. If M sand is available in the local area as it is the best choice to use. In Hyderabad, most of the power plants use a Robo sand or M sand and rock sand. Because the rivers are situated far away from the city location.  

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