πŸ‘‰What Is Plastering

πŸ’«Plastering is coating which may apply by thin successive layers on a vertical supports of masonry or concrete with a decorative and/or protection aim or to standardize a surface need to support another coating (paint for example).

🚧And plastering worker is a worker who works the mortar covering on walls and usually builds work where the cement or the lime is one of the main constituent.

⏺Before starting plastering the structure which is required for plastering should chiseled used for surface to holding the mortar but in the case of ribbed slab no need of chiseling because HCB can trap the mortar easily.

🏷Plastering work has three coats (layers):-

πŸ“1. First coat β€œα‰ αˆ«αˆͺ αŒαˆ­αβ€

πŸ”ΈMix proportion, 1:4 (cement sand by volume with sufficient water) of mortar
πŸ”ΈSpread by trowel & allowed to cure for 24 hrs before applying second coat.
πŸ”ΈHas thickness of 0.5 – 1 cm , which is plastered by mortar

πŸ“2. Second coat β€œαˆ™αˆŒα‰΅β€

πŸ”ΈThis layer is about 1.5cm-2.5cm which is done by mortar
πŸ”ΈMix ratio is 1:4 (cement: sand by volume)
πŸ”ΈSet for 21days, before third coat started.

πŸ“3. Third coat (fine coat) β€œαŠαŠ–β€

πŸ”ΈMix ratio is 1:1 (one bag cement and one box of sand)
πŸ”ΈWhich is done to make the slab, wall & column smooth
πŸ”ΈThe sand for this task should be sieved to make smooth
Plastering of slab was started after leveled by” gomawuhalik” then make align by string with the needed thickness this is called locally β€œfasha”. Thickness for fashais take from10 up to 15-cm. In case of quantifying the plastering work all works except the gutter measured in meter square (m2) and the gutter is in meter linear

🎲Requirements of good plastering

πŸ”ΈIt should provide smooth, non-absorb ante and washable surface.
πŸ”ΈIt should not contract in volume while drying and setting.
πŸ”ΈIt should adhere firmly to the surface and resist the effect of weather.

@etconp

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