softwareng

Author: Ibrahim

  • Principle of comfort AC

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    by

    Ibrahim
    in

    A sense of comfort is a good indicator of a healthy environment and depends on changes in temperature, wind speed or wind speed and humidity during different seasons of the year. The principle of air conditioning should include proper control of temperature, humidity and air velocity. Temperature control: Comfortable zone is the temperature range suitable for…

  • Purposes of air conditioning (Ac)

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    by

    Ibrahim
    in

    Improving the quality of products in industrial processes such as synthetic silk and cotton fabrics. In the case of other industries, it helps in providing comfortable working conditions for workers, which in turn increases productivity.In commercial premises such as theatres, offices, banks, shops and restaurants, air conditioning is used to improve the working environment and…

  •  Principles of air conditioner

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    by

    Ibrahim
    in

    Air conditioning is the process of treating air so that its temperature, humidity, purity and temperature can be simultaneously controlled to meet the needs of the conditioned space, such as human comfort and health and other environmental needs.

  • What is Mortar

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    Ibrahim
    in

    It is used in two ways, either (i) as a bed layer for receiving other types of DPC or (ii) as a waterproofing plaster. For the bedding layer, mortar is prepared by mixing cement and sand in the ratio of 1:3 and adding a little lime to increase the workability. For waterproof plasterwork, mortar is…

  • Bituminous felts

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    Ibrahim
    in

    It is also a flexible material, available in rolls of normal wall width. To hold it in position, a layer of cement mortar is first laid over the brickwork and then DPC is laid over it. 10 cm overlap in case of joints and full width overlap in case of angles and crossings should be…

  • Hot asphalt

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    Ibrahim
    in

    It is a flexible material, which is first heated and then spread over a bed of concrete or mortar (ie over the walls). It should not be applied in thickness less than 3 mm. Bitumen or asphalt makes an excellent damp-proof course, as it offers an impermeable, indestructible and hard surface.

  • Material which are used for damp proofing

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    by

    Ibrahim
    in

    There are different materials, which are used as damp proof courses depending on location, economy and degree of damp proofing required. However, when choosing a particular damp proofing material, the following requirements for an ideal damp proofing material should be kept in mind. Materials for DPC must be impervious and durable, meaning the material must…

  • Pressure grouting

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    Ibrahim
    in

    Cementation is the process or technique of forcing cement grout (ie a mixture of cement, sand and water) under pressure into cracks, voids or fissures in a structural component or ground. That is, all the components of a structure in general and foundations in particular, which are liable to ingress of moisture, are strengthened and…

  • Guniting 

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    Ibrahim
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    It is used to form an impermeable layer using rich cement mortar (1 cement: 3 sand or fine aggregate mix) for waterproofing over exposed concrete surface or pipes, cisterns etc. to resist water pressure. contains Gunite is a mixture of cement and sand or well-graded fine aggregate, the usual ratio being 1:3 or 1:4 (ie,…

  • Hollow Walls

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    by

    Ibrahim
    in

    A cavity wall consists of two parallel walls or leaves or skins of masonry separated by a continuous air space or cavity. The walls of the cavity consist of three main parts, namely, Outer wall or leaf (10 cm thick) which is the outer part of the wall.A cavity or air space of 5-8 cm.Inner…